Method and device for regulating composite material, electronic equipment and storage medium

Abstract

The application relates to a composite material regulation method and device, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring the compressive strength and fracture toughness of an initial composite material, the compressive strength and fracture toughness of a target composite material, and determining filler, a filling particle size of the filler, a replacement material and a replacement ratio of the replacement material according to the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material; and the target composite material is prepared according to the filler, the filling particle size of the filler, the replacement material and the replacement ratio of the replacement material. Thus, the problem that the composite material is difficult to realize independent design of strength properties and fracture properties due to the monotony of the inorganic cementitious material strength-toughness relationship is solved, independent design of cementitious ability and compactness is realized by regulating the chemical activity and geometric size of the filling material, and therefore, bidirectional regulation of the inorganic cementitious material strength-toughness relationship is realized.

Description

Technical Field

[0001] This application relates to the field of inorganic non-metallic materials technology, and in particular to a method, apparatus, electronic device and storage medium for controlling composite materials. Background Technology

[0002] Inorganic cementitious materials are the largest category of materials produced globally. Among them, concrete, which uses cement as a cementing system, has an annual global production of up to 14 billion cubic meters and is a basic element of various infrastructure constructions. However, inorganic cementitious materials often exhibit brittle characteristics and fail by sudden fracture. Therefore, in addition to strength property design, it is necessary to consider the changes in fracture properties.

[0003] The design of fracture properties for cementitious materials in related technologies mainly relies on experience. After ensuring that the compressive strength meets technical requirements, fracture toughness is obtained experimentally, and the material composition is modified as needed based on the variation patterns of the cementitious material. Taking cement as an example, adjusting the water-cement ratio and the proportion of active ingredients are currently the main methods for optimizing the composition of cementitious materials. In most cases, since cement and concrete are mainly used to bear compressive loads in engineering structures, their material design is primarily driven by compressive strength. Studies have shown that there is generally a positive correlation between the compressive strength and fracture toughness of inorganic cementitious materials. Therefore, unilaterally increasing compressive strength can also play a role in toughening to some extent; however, due to its inherent brittleness, this toughening effect is very limited.

[0004] Developing composite materials based on inorganic cementitious materials can significantly improve the toughness of infrastructure materials. Based on this, related technologies have led to the development of a series of material systems, including fiber-reinforced concrete (FRC), ultra-high performance concrete (UHPC), and strain-hardening fiber-reinforced cementitious composites (ECC / SHCC). In the design of these materials, inducing multi-crack formation under load is considered one of the important ways to improve material toughness, such as... Figure 1 As shown and Figure 2 As shown, since the brittleness of the cement matrix itself is unavoidable, transforming the single-slit cracking in the traditional brittle material system into multi-slit cracking under fiber bridging can greatly improve the material's ability to absorb external energy, thereby playing a significant toughening role.

[0005] In the aforementioned composite material systems, to promote multi-crack development, the cementitious matrix must possess the lowest possible fracture toughness (KIC) to allow cracks to propagate rapidly in a flat cracking pattern, completing crack propagation before the fiber bridging capacity is exhausted. However, the generally positive correlation between strength and toughness inherent in inorganic cementitious materials means that as the compressive strength of the matrix increases, its fracture toughness also increases, thus inhibiting multi-crack development and limiting the improvement in the toughness of the composite material. Therefore, even with fiber toughening, most composite materials still exhibit a decrease in toughening efficiency with increasing compressive strength.

[0006] In summary, one fundamental approach to improving the toughening efficiency of high-strength fiber composites is to decouple the strength-toughness relationship between the cementitious matrix and the composite material. This allows for independent design of the matrix's compressive strength and fracture toughness, and, given that one variable is fixed, the range of the other variable can be controlled through material optimization design. However, relevant technologies currently lack corresponding solutions, making it difficult to overcome the technical bottleneck in reinforcing and toughening fiber composites. Summary of the Invention

[0007] This application provides a method, apparatus, electronic device, and storage medium for controlling composite materials, in order to solve the problem that the monotony of the strength-toughness relationship of inorganic cementitious materials makes it difficult to independently design the strength and fracture properties of composite materials. By controlling the chemical activity and geometric dimensions of the filler material, the independent design of the cementing ability and density can be achieved, thereby realizing the bidirectional control of the strength-toughness relationship of inorganic cementitious materials.

[0008] The first aspect of this application provides a method for controlling the composition of composite materials, comprising the following steps: Obtain the compressive strength and fracture toughness of the initial composite material, and the compressive strength and fracture toughness of the target composite material; The filler, the particle size of the filler, the substitute material, and the replacement ratio of the substitute material are determined based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material. The target composite material is prepared according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material.

[0009] Optionally, in some embodiments, determining the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material includes: If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a first preset threshold, and the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is greater than a second preset threshold, then at least one fine-particle inert material is determined as a filler, at least one of the cementitious material, water and coarse-particle material in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined to be a first ratio. If the absolute value of the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is less than a third preset threshold, and the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fourth preset threshold, wherein the fourth preset threshold is greater than the third preset threshold, then at least one fine-particle inert material and / or at least one active material are determined as fillers, at least one of the cementitious material, water and coarse particles in the initial composite material are determined as replacement materials, and the replacement ratio of the replacement materials is determined to be a second ratio; If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fifth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a sixth preset threshold, wherein the fifth preset threshold is greater than the sixth preset threshold, then at least one fine-particle inert material and / or at least one active material are determined as fillers, at least one of water and coarse particles in the initial composite material are determined as replacement materials, and the replacement ratio of the replacement materials is determined to be a third ratio; If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a seventh preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than an eighth preset threshold, wherein the eighth preset threshold is greater than the seventh preset threshold, then at least one coarse-particle inert material and / or at least one active material are determined as fillers, at least one of the cementitious material, water and fine particles in the initial composite material are determined as replacement materials, and the replacement ratio of the replacement materials is determined to be a fourth ratio; If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a ninth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a tenth preset threshold, then at least one active material is determined as a filler, at least one of the cementitious material, water and fine particles in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined to be a fifth ratio.

[0010] Optionally, in some embodiments, the cementing material is at least one of the following: ordinary silicate cement, sulfoaluminate cement, aluminate cement, magnesium-based cement, carbonate cementing material, alkali-activated cementing material, and building gypsum.

[0011] Optionally, in some embodiments, before obtaining the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material, the following steps are included: Obtain the target compressive strength; The basic proportions of the initial composite material are determined based on the target compressive strength, and the initial composite material is prepared based on the basic proportions. The initial composite material is tested to obtain its fracture toughness and actual apparent bulk density, and the particle bulk density and interparticle volume of the initial composite material are determined using a preset calculation model.

[0012] Optionally, in some embodiments, after preparing the target composite material according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material, the method further includes: The actual compressive strength and actual fracture toughness of the target composite material were obtained by testing. Determine whether the actual compressive strength is within a preset strength range and whether the actual fracture toughness is within a preset toughness range; If the actual compressive strength is not within the preset strength range, or the actual fracture toughness is not within the preset toughness range, then the optimized ratio of the target composite material is determined based on the compressive strength and fracture toughness of the target composite material and the actual compressive strength and actual fracture toughness of the target composite material, and the optimized target composite material is prepared based on the optimized ratio.

[0013] A second aspect of this application provides a device for controlling composite materials, comprising: The acquisition module is used to acquire the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material. The determining module is used to determine the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material. The preparation module is used to prepare the target composite material according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material.

[0014] Optionally, in some embodiments, the determining module includes: The first determining unit is configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a first preset threshold, and the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is greater than a second preset threshold, determine at least one fine-particle inert material as a filler, determine at least one of the cementitious material, water and coarse-particle material in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a first ratio. The second determining unit is configured to, when the absolute value of the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is less than a third preset threshold, and the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fourth preset threshold, wherein the fourth preset threshold is greater than the third preset threshold, determine at least one fine-particle inert material and / or at least one active material as filler, determine at least one of the cementitious material, water and coarse particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a second ratio; The third determining unit is configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fifth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a sixth preset threshold, wherein the fifth preset threshold is greater than the sixth preset threshold, determine at least one fine-particle inert material and / or at least one active material as filler, determine at least one of water and coarse particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a third ratio; The fourth determining unit is configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a seventh preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than an eighth preset threshold, wherein the eighth preset threshold is greater than the seventh preset threshold, determine at least one coarse-particle inert material and / or at least one active material as filler, determine at least one of the cementitious material, water and fine particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a fourth ratio; The fifth determining unit is configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a ninth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a tenth preset threshold, determine at least one active material as a filler, determine at least one of the cementitious material, water and fine particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a fifth ratio.

[0015] Optionally, in some embodiments, the cementing material is at least one of the following: ordinary silicate cement, sulfoaluminate cement, aluminate cement, magnesium-based cement, carbonate cementing material, alkali-activated cementing material, and building gypsum.

[0016] Optionally, in some embodiments, before obtaining the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material, the obtaining module includes: The acquisition unit is used to acquire the target compressive strength; A preparation unit is used to determine the basic proportion of the initial composite material according to the target compressive strength, and to prepare the initial composite material based on the basic proportion; The first testing unit is used to test the initial composite material to obtain the fracture toughness and actual apparent bulk density of the initial composite material, and to determine the particle bulk density and interparticle volume of the initial composite material using a preset calculation model.

[0017] Optionally, in some embodiments, after preparing the target composite material according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material, the preparation module further includes: The second testing unit is used to test the target composite material to obtain the actual compressive strength and actual fracture toughness of the target composite material; The judgment unit is used to determine whether the actual compressive strength is within a preset strength range and whether the actual fracture toughness is within a preset toughness range. An optimization unit is used to determine an optimized proportion of the target composite material based on the compressive strength and fracture toughness of the target composite material and the actual compressive strength and actual fracture toughness of the target composite material when the actual compressive strength is not within a preset strength range or the actual fracture toughness is not within a preset toughness range, and to prepare the optimized target composite material based on the optimized proportion.

[0018] A third aspect of this application provides an electronic device, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the composite material control method as described in the above embodiments.

[0019] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the composite material control method as described in the above embodiments.

[0020] Therefore, by obtaining the compressive strength and fracture toughness of the initial composite material and the target composite material, and determining the filler, filler particle size, substitute material, and replacement ratio based on these properties, the target composite material is prepared. This solves the problem of the monotonicity of the strength-toughness relationship in inorganic cementitious materials, which makes it difficult to independently design the strength and fracture properties of composite materials. By controlling the chemical activity and geometry of the filler material, independent design of cementitious ability and density can be achieved, thus realizing bidirectional control of the strength-toughness relationship in inorganic cementitious materials.

[0021] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 A schematic diagram illustrating the multi-slit cracking characteristics of fiber composite materials; Figure 2 A schematic diagram illustrating the strain hardening characteristics of fiber composite materials under uniaxial tensile multi-slit cracking. Figure 3 This is a flowchart of a method for controlling composite materials according to an embodiment of this application; Figure 4 This is a schematic diagram of a fracture toughness testing method according to an embodiment of this application; Figure 5 This is a schematic diagram illustrating the filling effect of a cementitious material according to an embodiment of this application; Figure 6 This is a schematic diagram illustrating the range of robust relationship control according to an embodiment of this application; Figure 7 This is a block diagram of a composite material control device provided according to an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of this application. Detailed Implementation

[0023] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0024] The following description, with reference to the accompanying drawings, outlines a method, apparatus, electronic device, and storage medium for controlling composite materials according to embodiments of this application. Addressing the problem mentioned in the background art, where the monotonicity of the strength-toughness relationship of inorganic cementitious materials makes it difficult to independently design the strength and fracture properties of composite materials, this application provides a method for controlling composite materials. In this method, the compressive strength and fracture toughness of an initial composite material and the compressive strength and fracture toughness of a target composite material are obtained. Based on these values, the filler, its particle size, a substitute material, and its replacement ratio are determined. The target composite material is then prepared according to these parameters. This solves the problem of the monotonicity of the strength-toughness relationship of inorganic cementitious materials, which makes it difficult to independently design the strength and fracture properties of composite materials. By controlling the chemical activity and geometric dimensions of the filler material, independent design of the cementing ability and density is achieved, thereby realizing bidirectional control of the strength-toughness relationship of inorganic cementitious materials.

[0025] Specifically, Figure 1 This is a schematic flowchart illustrating a method for controlling composite materials provided in an embodiment of this application.

[0026] like Figure 1 As shown, the method for controlling the composite material includes the following steps: In step S101, the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material are obtained.

[0027] It should be noted that the composite material in the embodiments of this application uses a cementitious material as the matrix.

[0028] Optionally, in some embodiments, before obtaining the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material, the method includes: obtaining the target compressive strength; determining the basic proportion of the initial composite material based on the target compressive strength, and preparing the initial composite material based on the basic proportion; testing the initial composite material to obtain the fracture toughness and actual apparent bulk density of the initial composite material, and determining the particle bulk density and interparticle volume of the initial composite material using a preset calculation model.

[0029] The preset computational model can be the De Larrard model.

[0030] Understandably, within the framework of linear elastic fracture mechanics, the brittle characteristics of inorganic cementitious materials can be quantitatively characterized by fracture toughness K. In mode I fracture, when the stress intensity factor reaches the critical value KIC, crack propagation occurs. Similar to the strength parameters of materials, fracture toughness is an inherent property of materials and does not change with variations in external load conditions.

[0031] Specifically, in this embodiment of the application, the initial basic mix proportion of the composite material can be preliminarily determined based on the target compressive strength; the type I fracture toughness KIC of the basic mix proportion is measured through a three-point bending test, such as... Figure 4 As shown; the De Larrard model was used to calculate the particle bulk density and interparticle volume of the basic mix, and the actual apparent bulk density of the cementitious material was measured by wet method, wherein the interparticle volume is the upper limit of the proportion of fine particle filling volume.

[0032] In step S102, the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material are determined based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material.

[0033] Alternatively, in some embodiments, such as Figure 5As shown, the process of determining filler, filler particle size, substitute material, and substitute material replacement ratio based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material includes: if the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a first preset threshold, and the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is greater than a second preset threshold, then at least one fine-particle inert material is determined as a filler, at least one of the cementitious material, water, and coarse-particle material in the initial composite material is determined as a substitute material, and the replacement ratio of the substitute material is determined to be a first ratio; if the initial... If the absolute value of the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is less than a third preset threshold, and the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fourth preset threshold, wherein the fourth preset threshold is greater than the third preset threshold, then at least one fine-particle inert material and / or at least one active material are determined as fillers, and at least one of the cementitious material, water, and coarse particles in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined to be a second ratio; if the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fifth preset threshold, and the target composite material... If the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a sixth preset threshold, and the fifth preset threshold is greater than the sixth preset threshold, then at least one fine-particle inert material and / or at least one active material is determined as a filler, and at least one of water and coarse particles in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined to be a third ratio; if the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a seventh preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than an eighth preset threshold, and the eighth preset threshold is greater than the seventh preset threshold, then it is determined that... At least one coarse-grained inert material and / or at least one active material are used as fillers. At least one of the cementitious material, water, and fine particles in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined as a fourth ratio. If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a ninth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a tenth preset threshold, then at least one active material is determined as a filler, at least one of the cementitious material, water, and fine particles in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined as a fifth ratio.

[0034] The first to tenth preset thresholds can be preset by the user, obtained through a limited number of experiments, or obtained through a limited number of computer simulations, and are not specifically limited here. The cementing materials in the embodiments of this application include at least one of the following: ordinary silicate cement, sulfoaluminate cement, aluminate cement, magnesium-based cement, carbonate cementing materials, alkali-activated cementing materials, and building gypsum.

[0035] It is understandable that the compressive strength of cementitious materials depends on their density and cementing ability, while their tensile strength mainly depends on the maximum defect size and fracture toughness. These factors determine the initial crack cross-section and the material's ability to resist unstable crack propagation, respectively. Among these, fracture toughness primarily depends on the material's cementing ability. Therefore, by controlling the particle filling effect, it is possible to change the density without altering or with a smaller degree alteration of the cementing ability, thereby achieving the technical goal of decoupling compressive strength and fracture toughness.

[0036] Based on the aforementioned scientific evidence, the embodiments of this application can achieve decoupling of the strength-toughness relationship in inorganic cementitious materials and bidirectional design of strength and fracture properties. Using an inorganic cementitious matrix as the original material, by controlling the cementitious activity, geometric dimensions, and volume content of the filler, the technical effects of increasing the density of the cementitious material without changing its cementing ability, or decreasing its cementing ability while maintaining or increasing its density, are achieved. This results in increasing the compressive strength of the cementitious material without changing its fracture toughness, or decreasing its fracture toughness while maintaining or increasing its compressive strength. Under certain design requirements, the technical effects of significantly increasing the compressive strength of the cementitious material while maintaining or slightly increasing its fracture toughness, or significantly increasing its fracture toughness while maintaining or slightly increasing its compressive strength, can be achieved, causing the changes in the compressive strength and fracture toughness of the cementitious material to exhibit reverse or asynchronous characteristics.

[0037] It should be noted that the fillers in this application embodiment are divided into two categories: inert and active. Inert fillers include, but are not limited to, one or more of quartz powder, waste stone powder, limestone powder, and fine particles of biochar. Active fillers are powders with pozzolanic reactivity, including, but not limited to, one or more of fly ash, slag, silica fume, and metakaolin. The fillers are micron-nano-sized particles with a maximum particle size ranging from 15 µm to 350 µm. The filling function involves using inorganic particulate materials as fillers, which are mixed with the aforementioned inorganic cementitious materials according to the types, activities, particle sizes, and proportions designed in this application embodiment.

[0038] Specifically, if the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a first preset threshold, and the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is greater than a second preset threshold, then the control requirement of the composite material in this application embodiment is: constant or increased compressive strength and decreased fracture toughness. At this time, fine-particle inert filler can be used to replace one or more of the cementitious material, water and coarse particles in equal volume. The filler particle size is less than 15 µm, and the replacement ratio is one of 0-5%, 5-15%, 15-25%, and 25-35%. In actual implementation, the filler particle size and the replacement ratio of the replacement material are determined by the actual particle size, cementitious material type, initial composite material ratio and actual filling effect.

[0039] If the absolute value of the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is less than a third preset threshold, and the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fourth preset threshold, wherein the fourth preset threshold is greater than the third preset threshold, then the control requirement of the composite material in this application embodiment is: constant fracture toughness and improved compressive strength. At this time, one or more of fine-particle inert fillers and active fillers can be used to replace one or more of the cementitious materials, water and coarse particles in equal volume. The particle size of the filler is less than 15µm, and the replacement ratio is one of 0-5%, 5-15%, 15-25%, 25-35%, 35-45%, 45-55%, and 55-65%. In actual implementation, the particle size of the filler and the replacement ratio of the replacement material are determined by the actual particle size, the type of cementitious material, the proportion of the initial composite material, the actual filling effect and the compressive strength of the target composite material.

[0040] If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fifth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a sixth preset threshold, wherein the fifth preset threshold is greater than the sixth preset threshold, then the adjustment requirement of the composite material in this application embodiment is: a slight increase in fracture toughness and a significant increase in compressive strength. At this time, one or more of fine-particle inert fillers and active fillers can be used to replace one or more of water and coarse particles in equal volume. The filler particle size is one of 15 µm or less, 30 µm or less, or 45 µm or less, and the replacement ratio is one of 0-5%, 5-15%, 15-25%, 25-35%, 35-45%, 45-55%, or 55-65%. In actual implementation, the filler particle size and the replacement ratio of the replacement material are determined by the actual particle size, the type of cementitious material, the proportion of the initial composite material, the actual filling effect, and the compressive strength of the target composite material.

[0041] If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than the seventh preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than the eighth preset threshold, wherein the eighth preset threshold is greater than the seventh preset threshold, then the control requirement of the composite material in this application embodiment is: constant or slightly improved compressive strength and significantly improved fracture toughness. At this time, one or more of coarse-particle inert fillers and active fillers can be used to replace one or more of the cementitious materials, water and fine particles in equal volume. The median particle size D50 of the coarse-particle filler is one of 30 µm or more, 45 µm or more, 75 µm or more, or 125 µm or more, and the replacement ratio is one of 0-5%, 5-15%, 15-25%, or 25-35%. In actual implementation, the particle size of the filler and the replacement ratio of the replacement material are determined by the actual particle size, the type of cementitious material, the proportion of the initial composite material and the actual filling effect.

[0042] If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than the ninth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than the tenth preset threshold, then the control requirement of the composite material in this application embodiment is: the compressive strength and fracture toughness are improved simultaneously. At this time, an active filler can be used to replace one or more of the cementitious materials, water and fine particles in equal volume. The particle size of the active filler is one of 15 µm or less, 30 µm or less, or 45 µm or less, and the replacement ratio is one of 0-5%, 5-15%, 15-25%, 25-35%, 35-45%, 45-55%, 55-65%, or 65-75%. In actual implementation, the particle size of the filler and the replacement ratio of the replacement material are determined by the actual particle size, the type of cementitious material, the proportion of the initial composite material, the actual filling effect, and the compressive strength of the target composite material.

[0043] In step S103, the target composite material is prepared according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material.

[0044] Specifically, in the embodiments of this application, the target composite material can be prepared and cured to the designed age based on the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material.

[0045] Therefore, the embodiments of this application achieve independent design of cementing ability and density by controlling the chemical activity and geometric dimensions of the filler material, thereby achieving the technical goal of bidirectional control (i.e., positive or negative correlation) of the strength-toughness relationship of inorganic cementitious materials, such as... Figure 6 As shown.

[0046] Optionally, in some embodiments, after preparing the target composite material according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material, the method further includes: testing the target composite material to obtain the actual compressive strength and actual fracture toughness of the target composite material; determining whether the actual compressive strength is within a preset strength range and whether the actual fracture toughness is within a preset toughness range; if the actual compressive strength is not within the preset strength range or the actual fracture toughness is not within the preset toughness range, then determining the optimized ratio of the target composite material based on the compressive strength and fracture toughness of the target composite material and the actual compressive strength and actual fracture toughness of the target composite material, and preparing the optimized target composite material based on the optimized ratio.

[0047] The preset strength range and preset toughness range can be preset by the user, obtained through a limited number of experiments, or obtained through a limited number of computer simulations; no specific limitations are made here.

[0048] Specifically, in the embodiments of this application, after obtaining the target composite material, the target composite material can be tested to measure its compressive strength and fracture toughness, and the proportion of the target composite material can be finely adjusted based on the measured compressive strength and fracture toughness to obtain an optimized target composite material.

[0049] It should be noted that the composite material control method of this application embodiment can be used for matrix design in fiber composite materials, and form a composite material with high tensile strength and multiple cracking with the fiber, wherein the fiber is one or more of polyethylene, polyvinyl alcohol, and polypropylene.

[0050] To enable those skilled in the art to further understand the method for controlling composite materials in the embodiments of this application, the following detailed description is provided in conjunction with specific embodiments.

[0051] Example 1: The control requirements in the slag cement system of this application embodiment are: constant compressive strength and reduced fracture toughness.

[0052] (1) The initial composite material was slag cement, with the following volume contents: silicate cement 35%, slag 25%, and water 40%. After being mixed evenly according to the procedure specified in ASTM C109, it was cast into 50 mm cubes and tested as Type I fracture toughness specimens according to ASTM E399. After standard curing for 28 days, the compressive strength was measured to be 68.7 MPa and the fracture toughness was 0.4618 MPa·m. 0.5 Based on this formula, an improved formula was designed that maintains the same compressive strength but reduces fracture toughness.

[0053] (2) According to the composite material control method of the present application embodiment, inert filler fine quartz powder is used to replace the slag in the cementitious component by an equal volume. The mixing and casting are completed according to the above process. After curing under the same conditions for 28 days, the compressive strength is measured to be 68.5 MPa and the fracture toughness is 0.2611 MPa·m. 0.5 Compared to the base mix proportions, the modified composite material mix proportions show a fluctuation of less than 1% in compressive strength, but a 43.5% reduction in fracture toughness.

[0054] Example 2: The control requirements in the gypsum cementing system of this application embodiment are: unchanged fracture toughness and increased compressive strength.

[0055] (1) The initial composite material was building gypsum and quartz powder filler, with the following volume contents: building gypsum 35%, quartz powder 5%, and water 60%. It was mixed and poured according to the process in Example 1, and cured for 24 hours. The compressive strength was measured to be 4.26 MPa and the fracture toughness was 0.1111 MPa·m. 0.5 Based on this formula, an improved formula was designed that maintains the same fracture toughness but increases the compressive strength.

[0056] (2) Using the same inert filler fine quartz powder as in Example 1, partially replacing water, the goal of inert filling without changing the cementing ability is achieved by filling the pores occupied by water that did not participate in the hydration reaction of the gypsum in the original system. The modified volume ratio is: 35% building gypsum, 20% quartz powder, and 45% water. After mixing and pouring according to the above process, and curing under the same conditions for 24 hours, the compressive strength was measured to be 7.80 MPa and the fracture toughness was 0.1123 MPa·m. 0.5 Compared to the base mix, the modified composite material exhibits a fluctuation of approximately 1% in fracture toughness, but an increase of 83.1% in compressive strength.

[0057] Example 3: The control requirements in the slag cement system of this application embodiment are: reduced compressive strength and increased fracture toughness.

[0058] (1) The initial composite material was slag cement, with the following volume contents: silicate cement 35%, slag 20%, and water 45%. It was mixed and poured according to the process in Example 1, and cured for 28 days. The compressive strength was measured to be 85.2 MPa and the fracture toughness was 0.3958 MPa·m. 0.5 Based on this formula, an improved formula can be designed that reduces or maintains the compressive strength while increasing the fracture toughness.

[0059] (2) Inert filler coarse quartz powder was used to replace the slag in the cementitious components by an equal volume. The mixing and casting were completed according to the above process. After curing under the same conditions for 28 days, the compressive strength was measured to be 60.3 MPa and the fracture toughness was 0.5175 MPa·m. 0.5 Compared to the base mix proportions, the modified composite material mix proportions show a 29.2% decrease in compressive strength and a 30.7% increase in fracture toughness.

[0060] Example 4: The control requirements in this application embodiment of the silicate cement system are: increased compressive strength and decreased fracture toughness.

[0061] (1) The initial composite material was silicate cement, with the following volume contents: silicate cement 35%, quartz powder 15%, and water 50%. It was mixed and poured according to the process in Example 1, and cured for 28 days. The compressive strength was measured to be 62.6 MPa and the fracture toughness was 0.3177 MPa·m. 0.5 Based on this formula, an improved formula was designed to increase compressive strength and decrease fracture toughness.

[0062] (2) Inert filler fine quartz powder was used to replace water in the cementitious components by an equal volume. The corrected volume ratio was: 35% silicate cement, 25% quartz powder, and 40% water. The mixing and pouring were completed according to the above process. After curing for 28 days under the same conditions, the compressive strength was measured to be 68.5 MPa and the fracture toughness was 0.2611 MPa·m. 0.5 Compared to the base mix, the modified composite mix increased compressive strength by 9.4%, but decreased fracture toughness by 17.8%.

[0063] In summary, the embodiments of this application change the inherent monotonous strength-toughness relationship of traditional inorganic cementitious materials. By designing cementitious material components containing fillers of different properties, the methods for controlling the density of the material's microstructure and cementing ability are separated, thereby achieving independent design of strength and fracture properties. The composite material control method of this application guides the matrix optimization design of fiber composite materials, promoting improvements in compressive strength, tensile strength, and multi-crack properties. This achieves synergistic design of reinforcement and toughening of fiber composite materials, serving not only the matrix design of high-performance fiber composite materials but also guiding the preparation of new fillers and the performance customization and optimization design of building materials. It has a certain promoting effect on improving infrastructure safety and the high-value resource utilization of various solid wastes in building materials.

[0064] According to the composite material control method proposed in this application, the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material are obtained. Based on these values, the filler, its particle size, the substitute material, and its replacement ratio are determined. The target composite material is then prepared according to these parameters. This method solves the problem that the monotonicity of the strength-toughness relationship in inorganic cementitious materials makes it difficult to independently design the strength and fracture properties of composite materials. By controlling the chemical activity and geometric dimensions of the filler material, independent design of the cementing ability and density can be achieved, thus realizing bidirectional control of the strength-toughness relationship in inorganic cementitious materials.

[0065] Next, the control device for composite materials according to the embodiments of this application is described with reference to the accompanying drawings.

[0066] Figure 7 This is a block diagram of a composite material control device according to an embodiment of this application.

[0067] like Figure 7 As shown, the control device 10 for the composite material includes: an acquisition module 100, a determination module 200, and a preparation module 300.

[0068] The acquisition module 100 is used to acquire the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material.

[0069] The determination module 200 is used to determine the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material.

[0070] The preparation module 300 is used to prepare the target composite material according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material.

[0071] Optionally, in some embodiments, the determining module 200 includes: a first determining unit, a second determining unit, a third determining unit, a fourth determining unit, and a fifth determining unit.

[0072] The first determining unit is configured to determine at least one fine-particle inert material as a filler, determine at least one of the cementitious material, water and coarse-particle material in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a first ratio when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a first preset threshold and the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is greater than a second preset threshold.

[0073] The second determining unit is configured to determine at least one fine-particle inert material and / or at least one active material as filler when the absolute value of the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is less than a third preset threshold, and the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fourth preset threshold, wherein the fourth preset threshold is greater than the third preset threshold, and to determine at least one of the following in the initial composite material: cementitious material, water and coarse particles as substitute material, and to determine the replacement ratio of the substitute material as a second ratio.

[0074] The third determining unit is used to determine at least one fine-particle inert material and / or at least one active material as filler when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fifth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a sixth preset threshold, wherein the fifth preset threshold is greater than the sixth preset threshold, and to determine at least one of water and coarse particles in the initial composite material as a replacement material, and to determine the replacement ratio of the replacement material as a third ratio.

[0075] The fourth determining unit is used to determine at least one coarse-grained inert material and / or at least one active material as filler when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a seventh preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than an eighth preset threshold, wherein the eighth preset threshold is greater than the seventh preset threshold.

[0076] The fifth determining unit is used to determine at least one active material as a filler, and to determine at least one of the cementitious material, water and fine particles in the initial composite material as a replacement material, and to determine the replacement ratio of the replacement material as the fifth ratio, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than the ninth preset threshold and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than the tenth preset threshold.

[0077] Optionally, in some embodiments, the cementing material is at least one of the following: ordinary silicate cement, sulfoaluminate cement, aluminate cement, magnesium-based cement, carbonate cementing material, alkali-activated cementing material, and building gypsum.

[0078] Optionally, in some embodiments, before obtaining the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material, the acquisition module 100 includes: an acquisition unit, a preparation unit, and a first testing unit.

[0079] The acquisition unit is used to acquire the target compressive strength.

[0080] The preparation unit is used to determine the basic proportion of the initial composite material according to the target compressive strength, and to prepare the initial composite material based on the basic proportion.

[0081] The first testing unit is used to test the initial composite material to obtain its fracture toughness and actual apparent bulk density, and to determine the particle bulk density and interparticle volume of the initial composite material using a preset calculation model.

[0082] Optionally, in some embodiments, after the target composite material is prepared according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material, the preparation module 300 further includes: a second testing unit, a judgment unit, and an optimization unit.

[0083] The second testing unit is used to test the target composite material to obtain its actual compressive strength and actual fracture toughness.

[0084] The judgment unit is used to determine whether the actual compressive strength is within the preset strength range and whether the actual fracture toughness is within the preset toughness range.

[0085] The optimization unit is used to determine the optimal ratio of the target composite material based on the compressive strength and fracture toughness of the target composite material and the actual compressive strength and fracture toughness of the target composite material when the actual compressive strength is not in the preset strength range or the actual fracture toughness is not in the preset toughness range, and to prepare the optimized target composite material based on the optimized ratio.

[0086] It should be noted that the explanation of the aforementioned method for controlling composite materials also applies to the control device for composite materials in this embodiment, and will not be repeated here.

[0087] According to the composite material control device proposed in this application, the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material are obtained. Based on these values, the filler, its particle size, the substitute material, and its replacement ratio are determined. The target composite material is then prepared according to these parameters. This solves the problem that the monotonicity of the strength-toughness relationship in inorganic cementitious materials makes it difficult to independently design the strength and fracture properties of composite materials. By controlling the chemical activity and geometric dimensions of the filler material, independent design of the cementing ability and density can be achieved, thus realizing bidirectional control of the strength-toughness relationship of inorganic cementitious materials.

[0088] Figure 8 A schematic diagram of the structure of an electronic device provided in an embodiment of this application. The electronic device may include: The memory 801, the processor 802, and the computer program stored on the memory 801 and capable of running on the processor 802.

[0089] When the processor 802 executes the program, it implements the method for controlling composite materials provided in the above embodiments.

[0090] Furthermore, electronic devices also include: Communication interface 803 is used for communication between memory 801 and processor 802.

[0091] The memory 801 is used to store computer programs that can run on the processor 802.

[0092] The memory 801 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0093] If the memory 801, processor 802, and communication interface 803 are implemented independently, then the communication interface 803, memory 801, and processor 802 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 8 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0094] Optionally, in a specific implementation, if the memory 801, processor 802, and communication interface 803 are integrated on a single chip, then the memory 801, processor 802, and communication interface 803 can communicate with each other through an internal interface.

[0095] The processor 802 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of this application.

[0096] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described method for controlling composite materials.

[0097] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0098] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0099] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0100] It should be understood that the various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0101] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0102] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A method for controlling the composition of composite materials, characterized in that, Includes the following steps: Obtain the compressive strength and fracture toughness of the initial composite material, and the compressive strength and fracture toughness of the target composite material; The filler, the particle size of the filler, the substitute material, and the replacement ratio of the substitute material are determined based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material. The target composite material is prepared according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material; The step of determining the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material includes: If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a first preset threshold, and the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is greater than a second preset threshold, then at least one fine-particle inert material is determined as a filler, at least one of the cementitious material, water and coarse-particle material in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined to be a first ratio. If the absolute value of the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is less than a third preset threshold, and the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fourth preset threshold, wherein the fourth preset threshold is greater than the third preset threshold, then at least one fine-particle inert material and / or at least one active material are determined as fillers, at least one of the cementitious material, water and coarse particles in the initial composite material are determined as replacement materials, and the replacement ratio of the replacement materials is determined to be a second ratio; If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fifth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a sixth preset threshold, wherein the fifth preset threshold is greater than the sixth preset threshold, then at least one fine-particle inert material and / or at least one active material are determined as fillers, at least one of water and coarse particles in the initial composite material are determined as replacement materials, and the replacement ratio of the replacement materials is determined to be a third ratio; If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a seventh preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than an eighth preset threshold, wherein the eighth preset threshold is greater than the seventh preset threshold, then at least one coarse-particle inert material and / or at least one active material are determined as fillers, at least one of the cementitious material, water and fine particles in the initial composite material are determined as replacement materials, and the replacement ratio of the replacement materials is determined to be a fourth ratio; If the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a ninth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a tenth preset threshold, then at least one active material is determined as a filler, at least one of the cementitious material, water and fine particles in the initial composite material is determined as a replacement material, and the replacement ratio of the replacement material is determined to be a fifth ratio.

2. The method according to claim 1, characterized in that, The cementing material is at least one of the following: ordinary silicate cement, sulfoaluminate cement, aluminate cement, magnesium-based cement, carbonate cementing material, alkali-activated cementing material, and building gypsum.

3. The method according to claim 1, characterized in that, Before obtaining the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material, the following steps are included: Obtain the target compressive strength; The basic proportions of the initial composite material are determined based on the target compressive strength, and the initial composite material is prepared based on the basic proportions. The initial composite material is tested to obtain its fracture toughness and actual apparent bulk density, and the particle bulk density and interparticle volume of the initial composite material are determined using a preset calculation model.

4. The method according to claim 1, characterized in that, After preparing the target composite material according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material, the process further includes: The actual compressive strength and actual fracture toughness of the target composite material were obtained by testing. Determine whether the actual compressive strength is within a preset strength range and whether the actual fracture toughness is within a preset toughness range; If the actual compressive strength is not within the preset strength range, or the actual fracture toughness is not within the preset toughness range, then the optimized ratio of the target composite material is determined based on the compressive strength and fracture toughness of the target composite material and the actual compressive strength and actual fracture toughness of the target composite material, and the optimized target composite material is prepared based on the optimized ratio.

5. A control device for composite materials, characterized in that, include: The acquisition module is used to acquire the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material. The determining module is used to determine the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material based on the compressive strength and fracture toughness of the initial composite material and the compressive strength and fracture toughness of the target composite material. The preparation module is used to prepare the target composite material according to the filler, the filler particle size, the substitute material, and the replacement ratio of the substitute material; The determining module includes: a first determining unit, configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a first preset threshold, and the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is greater than a second preset threshold, determine at least one fine-particle inert material as a filler, determine at least one of the cementitious material, water and coarse-particle material in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a first ratio; The second determining unit is configured to, when the absolute value of the difference between the fracture toughness of the initial composite material and the fracture toughness of the target composite material is less than a third preset threshold, and the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fourth preset threshold, wherein the fourth preset threshold is greater than the third preset threshold, determine at least one fine-particle inert material and / or at least one active material as filler, determine at least one of the cementitious material, water and coarse particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a second ratio; The third determining unit is configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a fifth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a sixth preset threshold, wherein the fifth preset threshold is greater than the sixth preset threshold, determine at least one fine-particle inert material and / or at least one active material as filler, determine at least one of water and coarse particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a third ratio; The fourth determining unit is configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a seventh preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than an eighth preset threshold, wherein the eighth preset threshold is greater than the seventh preset threshold, determine at least one coarse-particle inert material and / or at least one active material as filler, determine at least one of the cementitious material, water and fine particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a fourth ratio; The fifth determining unit is configured to, when the difference between the compressive strength of the target composite material and the compressive strength of the initial composite material is greater than a ninth preset threshold, and the difference between the fracture toughness of the target composite material and the fracture toughness of the initial composite material is greater than a tenth preset threshold, determine at least one active material as a filler, determine at least one of the cementitious material, water and fine particles in the initial composite material as a replacement material, and determine the replacement ratio of the replacement material as a fifth ratio.

6. The apparatus according to claim 5, characterized in that, The cementing material is at least one of the following: ordinary silicate cement, sulfoaluminate cement, aluminate cement, magnesium-based cement, carbonate cementing material, alkali-activated cementing material, and building gypsum.

7. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the method for controlling the composite material as described in any one of claims 1-4.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the method for controlling the composite material as described in any one of claims 1-4.

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