UHPC curve double-curved-surface component and production process

Abstract

The invention discloses a UHPC curve double-curved-surface component and a production process, and relates to the technical field of buildings and engineering. The reinforced fiber layer is embedded into the UHPC base body, and steel fibers are uniformly distributed on the reinforced fiber layer; the surface decoration layer is attached to the outer surface of the UHPC base body; wherein the UHPC base body, the reinforced fiber layer, the surface decoration layer and the self-repairing system jointly form an integral structure, and the surface decoration layer is fixed to the UHPC base body through a binding agent. Comprising the following steps: pretreating raw materials; a UHPC mixing step; designing and manufacturing a mold; a pouring and forming step; a maintenance step; a demolding and surface treatment step; and a surface decoration layer attaching step. The high-performance UHPC matrix is combined with the optimized proportion and the reinforced fibers, the characteristics of high compactness and toughness are shown, and the durability and crack resistance of the component are remarkably improved. The intelligent self-repairing system utilizes a microcapsule technology to automatically repair cracks, the service life is prolonged, and the maintenance cost is reduced. The decorative layer is attractive and multifunctional, and the environmental adaptability is enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of architecture and engineering, and in particular to a UHPC curved hyperboloid component and a production process. Background Art

[0002] Traditional building materials, such as ordinary concrete, are widely used, but they are obviously insufficient in strength, toughness, durability and crack resistance, and are difficult to meet the high requirements of complex engineering structures for material performance. In particular, traditional materials are often unable to cope with situations that require high stress, high load and complex environmental factors, such as bridges, tunnels, high-rise buildings, etc.

[0003] In order to overcome these shortcomings, researchers and engineers are constantly exploring and developing new high-performance building materials. Among them, ultra-high performance concrete (UHPC) as an innovative cement-based engineering material has attracted much attention due to its excellent mechanical properties, durability and self-healing ability. UHPC has achieved a significant improvement in material performance by optimizing the ratio of raw materials and preparation process. Its compressive strength, tensile strength, flexural strength and toughness are far superior to ordinary concrete.

[0004] However, despite the significant advantages of UHPC in material properties, it still faces some challenges in practical engineering applications. For example, how to ensure the precise molding and high-quality production of UHPC components in complex shapes (such as curved hyperboloids) is an urgent problem to be solved. Existing UHPC component manufacturing technologies often find it difficult to balance shape accuracy, material properties and production costs, resulting in deficiencies in shape complexity, dimensional accuracy and mechanical properties.

[0005] In addition, traditional UHPC components are prone to microcracks and other damages during long-term use due to erosion by environmental factors and loads. These damages not only affect the aesthetics of the components, but may also reduce their mechanical properties and durability, and even cause safety hazards. Summary of the invention

[0006] The object of the present invention is to provide a UHPC curved hyperbolic component and a production process to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A UHPC curved hyperbolic component comprises a UHPC matrix, wherein the UHPC matrix comprises cement, fine sand, ultrafine powder, steel fiber and chemical admixture, which are mixed in a predetermined proportion;

[0009] The reinforced fiber layer is embedded in the UHPC matrix and has uniformly distributed steel fibers. This layer uses an environmentally adaptable coating that is UV-resistant, self-cleaning, and waterproof and anti-fouling.

[0010] The surface decorative layer is attached to the outer surface of the UHPC substrate;

[0011] Self-repairing system: Self-repairing microcapsules are evenly distributed in the UHPC matrix, containing special repair agents to automatically repair micro cracks on the surface of components;

[0012] The UHPC matrix, the reinforcing fiber layer, the surface decoration layer and the self-repairing system together form an integral structure, and the surface decoration layer is fixed on the UHPC matrix by an adhesive.

[0013] Preferred technical solution:

[0014] In the raw material ratio of the UHPC matrix, the mass ratio of cement, fine sand, ultrafine powder and steel fiber is in the range of 1:0.8-1.2:0.8-1.2:2-3, and chemical admixtures are added in conventional amounts to adjust the concrete properties;

[0015] The length of the steel fibers in the reinforcing fiber layer is 50 mm to 120 mm, and the diameter of the steel fibers is 1.0 to 3.0 mm, so as to ensure uniform distribution and effective reinforcement of the steel fibers in the UHPC matrix.

[0016] The production process of UHPC curved hyperboloid components includes the following steps:

[0017] Raw material pretreatment steps, including cement screening, fine sand and ultrafine powder drying, and steel fiber surface treatment;

[0018] UHPC mixing step, the pre-treated raw materials are mixed evenly according to a predetermined ratio, and a predetermined amount of steel fibers are evenly added during the mixing process to ensure that they are evenly distributed in the UHPC matrix;

[0019] Mould design and production steps: design and produce moulds with high precision and high adaptability, and the inner surface of the mould is specially treated to reduce concrete adhesion;

[0020] In the pouring and molding step, the evenly mixed UHPC concrete is poured into the mold, and the pores and air are removed by vibration or other means to shape the concrete in the mold;

[0021] Maintenance step: fully maintain the formed components to achieve the expected strength and durability;

[0022] Demolding and surface treatment steps: remove the cured component from the mold and perform necessary surface treatment to meet the use requirements;

[0023] Surface decoration layer attachment steps: Select appropriate decorative materials, evenly apply a layer of adhesive with good compatibility with the UHPC matrix and decorative materials on the surface of the component, and attach the pretreated decorative materials to the surface of the UHPC matrix.

[0024] Preferred technical solution:

[0025] (1) In the UHPC mixing step, a professional concrete mixer is used for mixing, and the mixing time and mixing speed are controlled according to the characteristics of the raw materials and the performance requirements of the concrete;

[0026] (2) In the mold design and production steps, the mold design must fully consider the shape, size and precision requirements of the component to ensure that the molded component meets the design requirements;

[0027] (3) During the pouring and molding steps, vibration is performed by means of a vibrating table or manual vibration to improve the density and strength of the concrete;

[0028] (4) During the curing step, keep the concrete moist and avoid being affected by adverse external factors to ensure normal hardening and strength development of the concrete.

[0029] Preferred technical solution:

[0030] Mold preheating step: Before pouring, the mold is preheated to control the temperature of the concrete when it enters the mold, reduce the internal stress caused by temperature differences, and thus improve the uniformity and quality of the components;

[0031] Quality inspection steps: After demoulding and surface treatment, the UHPC curved hyperbolic components are subjected to quality inspection, including but not limited to dimensional accuracy, surface flatness, strength test and crack resistance test, to ensure that the components meet the design requirements and specifications.

[0032] Preferred technical solution:

[0033] In the quality inspection step, non-contact measurement technology is used to detect dimensional accuracy and surface flatness to improve the accuracy and efficiency of inspection;

[0034] The strength test in the quality inspection step uses standard specimens for destructive testing to verify the strength performance of the UHPC matrix; at the same time, the durability and crack resistance of the components are evaluated through accelerated aging tests that simulate the actual use environment.

[0035] Preferred technical solution:

[0036] The mold is made of high-strength, high-wear-resistant materials, and the internal surface is sprayed with a release agent or physically or chemically modified to reduce the adhesion and damage of UHPC concrete during the demoulding process;

[0037] The design of the mold takes into account the curved hyperbolic characteristics of the component, and adopts a split design or a multi-section splicing design to facilitate the manufacture, assembly and disassembly of the mold, while ensuring the accuracy and consistency of the molded component;

[0038] A supporting structure and a positioning device are arranged inside the mold to ensure the stability of the mold and the shape accuracy of the component during the pouring and vibration process.

[0039] Preferred technical solution:

[0040] The mold support structure and positioning device adopt an adjustable design to meet the production needs of curved hyperboloid components of different sizes and shapes;

[0041] A sealing device is provided at the joint interface of the mold to prevent concrete from leaking from the interface during the pouring process, which would affect the molding quality of the component.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] High-performance UHPC matrix: By optimizing the ratio of cement, fine sand, ultrafine powder, steel fiber and chemical admixtures, UHPC materials with high density, high strength and high toughness are formed. This material not only provides excellent mechanical properties, but also significantly improves the durability and crack resistance of components, allowing components to cope with complex stress environments and long-term use requirements.

[0044] Enhanced structural strength and durability: The uniformly distributed steel fibers in the reinforcing fiber layer further enhance the crack resistance and toughness of the UHPC matrix through bridging and pull-out mechanisms. At the same time, the length and diameter of the steel fibers are carefully designed to ensure their uniform distribution and effective reinforcement in the matrix. In addition, the surface decorative layer is firmly fixed to the UHPC matrix by an adhesive, which enhances the stability and durability of the overall structure.

[0045] Intelligent self-repairing system: The introduction of self-repairing microcapsules enables the automatic repair of microcracks on the surface of components. When cracks appear, the microcapsules rupture and release special repair agents, which close the cracks through chemical reactions or physical fillings to restore the integrity of the components. This intelligent self-repairing mechanism not only extends the service life of the components, but also reduces the subsequent maintenance costs.

[0046] Excellent appearance and function: The surface decoration layer not only provides the component with a beautiful appearance, but also gives the component anti-ultraviolet, self-cleaning, waterproof and anti-fouling functions through the use of environmentally adaptable coatings. These functions improve the environmental adaptability and long-term use effect of the component.

[0047] Efficient production process: Through precise raw material pretreatment, UHPC mixing, mold design and production, casting and molding, maintenance, demoulding and surface treatment, and surface decoration layer attachment, high-precision and high-quality production of components is ensured. At the same time, auxiliary steps such as mold preheating and quality inspection further improve the uniformity and reliability of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0049] Figure 1 It is a schematic diagram of the structure of the present invention.

[0050] Notes on reference numerals: 1-UHPC matrix, 2-reinforcement fiber layer, 3-surface decoration layer. DETAILED DESCRIPTION

[0051] The following embodiments will be described in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component may be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0052] A UHPC curved hyperbolic component includes a UHPC matrix 1, which includes cement, fine sand, ultrafine powder, steel fiber and chemical admixtures, which are mixed in a predetermined proportion; the UHPC matrix 1 is the core part of the component, and its performance directly affects the strength and durability of the entire component. Cement, fine sand, ultrafine powder, steel fiber and chemical admixtures are mixed in a predetermined proportion to form a UHPC material with high density, high strength and high toughness. Cement, as a cementitious material, provides matrix strength; fine sand and ultrafine powder fill the gaps between cement particles to improve the density of concrete; steel fibers significantly improve the crack resistance and toughness of concrete through bridging and pull-out mechanisms. The addition of chemical admixtures, such as water reducers, retarders, etc., can adjust the fluidity and setting time of concrete, and further optimize its working performance and performance after hardening.

[0053] The reinforcing fiber layer 2 is embedded in the UHPC matrix 1 and has uniformly distributed steel fibers; the layer adopts an environmentally adaptable coating and has the functions of anti-ultraviolet, self-cleaning, and waterproof and anti-fouling;

[0054] The surface decoration layer 3 is attached to the outer surface of the UHPC substrate 1; in addition, the surface decoration layer 3 is firmly fixed to the UHPC substrate 1 by an adhesive, thereby ensuring a close connection between the surface decoration layer 3 and the substrate and the stability of the overall structure.

[0055] Self-repairing system: Self-repairing microcapsules are evenly distributed in the UHPC matrix 1, which contains a special repair agent for automatically repairing microcracks on the surface of the component; by evenly dispersing the self-repairing microcapsules in the matrix, the automatic repair of microcracks on the surface of the component is achieved. When microcracks appear on the surface of the component, the microcapsules rupture and release the special repair agent, which reacts chemically or physically fills the cracks, thereby sealing the cracks and restoring the integrity of the component. This intelligent self-repairing mechanism not only improves the durability and safety of the component, but also reduces maintenance costs.

[0056] The UHPC matrix 1, the reinforcing fiber layer 2, the surface decoration layer 3 and the self-repairing system together form an integral structure, and the surface decoration layer 3 is fixed on the UHPC matrix 1 by an adhesive.

[0057] In the raw material ratio of UHPC matrix 1, the mass ratio of cement, fine sand, ultrafine powder and steel fiber is in the range of 1:0.8~1.2:0.8~1.2:2~3, and chemical admixtures are added in conventional amounts to adjust the performance of concrete; the mass ratio range of cement, fine sand, ultrafine powder and steel fiber given in this technical solution is obtained after a large number of experimental verifications and optimizations. By adjusting the ratio within this range, the strength, toughness and other properties of concrete can be adjusted according to specific engineering requirements. At the same time, the conventional amount of chemical admixtures is also determined based on engineering practice and performance requirements.

[0058] The length of the steel fibers in the reinforcing fiber layer 2 is 50 mm to 120 mm, and the diameter of the steel fibers is 1.0 to 3.0 mm, to ensure uniform distribution and effective reinforcement of the steel fibers in the UHPC matrix 1. The length and diameter of the steel fibers are key factors affecting their distribution and reinforcement effects in the UHPC matrix 1. The range of steel fiber length and diameter given in this technical solution is intended to ensure that the steel fibers can be evenly distributed in the matrix while playing the best reinforcement role. Shorter steel fibers may not be able to form an effective reinforcement network, while steel fibers that are too long or too thick may increase the difficulty of mixing and pouring, and even affect the fluidity and working performance of the concrete.

[0059] The production process of UHPC curved hyperboloid components includes the following steps:

[0060] Raw material pretreatment steps, including cement screening, fine sand and ultrafine powder drying, and steel fiber surface treatment, ensure the quality and purity of raw materials, laying a good foundation for subsequent mixing and molding steps.

[0061] UHPC mixing step, mixing the pretreated raw materials evenly according to a predetermined ratio, and adding a predetermined amount of steel fibers evenly during the mixing process to ensure that they are evenly distributed in the UHPC matrix 1;

[0062] Mould design and production steps: design and produce moulds with high precision and high adaptability, and the inner surface of the mould is specially treated to reduce concrete adhesion;

[0063] In the pouring and molding step, the evenly mixed UHPC concrete is poured into the mold, and the pores and air are removed by vibration or other means to shape the concrete in the mold;

[0064] Maintenance step: fully maintain the formed components to achieve the expected strength and durability;

[0065] Demolding and surface treatment steps: remove the cured component from the mold and perform necessary surface treatment to meet the use requirements;

[0066] Surface decoration layer 3 attachment step: select appropriate decoration material, evenly apply a layer of adhesive with good compatibility with UHPC substrate 1 and decoration material on the surface of the component, and attach the pretreated decoration material to the surface of UHPC substrate 1.

[0067] (1) In the UHPC mixing step, a professional concrete mixer is used for mixing, and the mixing time and mixing speed are controlled according to the characteristics of the raw materials and the performance requirements of the concrete;

[0068] (2) In the mold design and production steps, the mold design must fully consider the shape, size and precision requirements of the component to ensure that the molded component meets the design requirements;

[0069] (3) During the pouring and molding steps, vibration is performed by means of a vibrating table or manual vibration to improve the density and strength of the concrete;

[0070] (4) During the curing step, keep the concrete moist and avoid being affected by adverse external factors to ensure normal hardening and strength development of the concrete.

[0071] Mold preheating step: Before pouring, the mold is preheated to control the temperature of the concrete when it enters the mold, reduce the internal stress caused by temperature differences, and thus improve the uniformity and quality of the components;

[0072] Quality inspection steps: After demoulding and surface treatment, the UHPC curved hyperbolic components are subjected to quality inspection, including but not limited to dimensional accuracy, surface flatness, strength test and crack resistance test, to ensure that the components meet the design requirements and specifications.

[0073] In the quality inspection step, non-contact measurement technology is used to detect dimensional accuracy and surface flatness to improve the accuracy and efficiency of inspection;

[0074] The strength test in the quality inspection step uses standard specimens for destructive testing to verify the strength performance of the UHPC matrix 1; at the same time, the durability and crack resistance of the component are evaluated through accelerated aging tests that simulate the actual use environment.

[0075] The mold is made of high-strength, high-wear-resistant materials, and the internal surface is sprayed with a release agent or physically or chemically modified to reduce the adhesion and damage of UHPC concrete during the demoulding process;

[0076] The design of the mold takes into account the characteristics of the curved hyperbolic surface of the component, and adopts a split design or a multi-section splicing design to facilitate the manufacture, assembly and disassembly of the mold, while ensuring the accuracy and consistency of the molded component; The design of the mold fully takes into account the characteristics of the curved hyperbolic surface of the component, and adopts a split design or a multi-section splicing design to facilitate manufacture and disassembly. The support structure and positioning device set inside the mold ensure the stability and shape accuracy during the pouring and vibration process. In addition, a sealing device is set at the splicing interface of the mold to prevent concrete leakage.

[0077] A supporting structure and a positioning device are arranged inside the mold to ensure the stability of the mold and the shape accuracy of the component during the pouring and vibration process.

[0078] The mold support structure and positioning device adopt an adjustable design to meet the production needs of curved hyperboloid components of different sizes and shapes;

[0079] A sealing device is provided at the joint interface of the mold to prevent concrete from leaking from the interface during the pouring process, which would affect the molding quality of the component.

[0080] Microcapsule preparation: Self-healing microcapsules are tiny particles made by encapsulating a special repair agent in a polymer film through a specific process. These microcapsules can be evenly distributed inside the concrete and burst to release the repair agent when microcracks appear on the concrete surface. The preparation process of the microcapsules must ensure the effective encapsulation of the repair agent and the uniformity of the microcapsules.

[0081] Selection of repair agent: The selection of repair agent should be determined according to the performance requirements of UHPC concrete and the actual use environment. Common repair agents include resin, cement-based and polymer-based. These repair agents can chemically react or physically fill the cracks, thereby sealing the cracks and restoring the integrity of the concrete.

[0082] In order to verify the performance of the designed UHPC curved hyperbolic component, a series of experiments were carried out, including raw material ratio optimization experiments, component strength and toughness tests, and self-healing effect evaluation.

[0083] 1. Raw material ratio optimization experiment

[0084] Experimental purpose: To determine the optimal mass ratio of cement, fine sand, ultrafine powder and steel fiber to obtain UHPC material with the best performance.

[0085] Experimental design: Select different mass ratio combinations for mixing, and test the compressive strength, flexural strength and toughness of each group of mixtures.

[0086] Experimental data

[0087]

[0088] Conclusion: From the experimental data, it can be seen that the ratio C (1:1.2:1.2:3) shows better performance in compressive strength, flexural strength and toughness, so it is selected as the best ratio.

[0089] 2. Component strength and toughness test

[0090] Experimental purpose: To verify the overall strength and toughness of UHPC curved hyperbolic components.

[0091] Experimental design: Produce components according to the optimal ratio, and conduct compression, flexural and toughness tests.

[0092] Experimental data

[0093]

[0094]

[0095] Conclusion: The strength and toughness of the components meet the design requirements and show good mechanical properties.

[0096] 3. Self-repair effect evaluation

[0097] Experimental purpose: To evaluate the self-healing effect of self-healing microcapsules in UHPC components.

[0098] Experimental design: Artificially create microcracks on the surface of the component, observe the rupture of the self-repairing microcapsules and the release of the repair agent, and observe the changes before and after the cracks are repaired through a microscope.

[0099] Before repair: The crack is clearly visible and is about 0.1mm wide.

[0100] After repair: the filling material is obvious at the crack, the crack width is reduced to almost invisible, and through microscopic observation, the crack surface is smooth without obvious defects.

[0101] Conclusion: When microcracks appear on the surface of the component, the self-healing microcapsules can effectively rupture and release the repair agent to seal the cracks and restore the integrity of the component, with a good self-healing effect.

[0102] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0103] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A UHPC curved hyperbolic component, characterized in that: The UHPC matrix (1) includes cement, fine sand, ultrafine powder, steel fiber and chemical admixture, which are mixed in a predetermined ratio; A reinforcing fiber layer (2) is embedded in the UHPC matrix (1) and has steel fibers evenly distributed thereon; A surface decorative layer (3) attached to the outer surface of the UHPC substrate (1); The UHPC matrix (1), the reinforcing fiber layer (2) and the surface decoration layer (3) together form an integral structure, and the surface decoration layer (3) is fixed to the UHPC matrix (1) by means of an adhesive.

2. A UHPC curved hyperbolic component according to claim 1, characterized in that: In the raw material ratio of the UHPC matrix (1), the mass ratio of cement, fine sand, ultrafine powder and steel fiber is in the range of 1:0.8-1.2:0.8-1.2:2-3, and chemical admixtures are added in conventional amounts to adjust the concrete properties; The length of the steel fibers in the reinforcing fiber layer (2) is 50 mm to 120 mm, and the diameter of the steel fibers is 1.0 to 3.0 mm, so as to ensure uniform distribution and effective reinforcement of the steel fibers in the UHPC matrix (1).

3. The production process of the UHPC curved hyperboloid component according to claim 1, characterized in that: The following steps are included: Raw material pretreatment steps, including cement screening, fine sand and ultrafine powder drying, and steel fiber surface treatment; A UHPC mixing step, wherein the pretreated raw materials are mixed uniformly according to a predetermined ratio, and a predetermined amount of steel fibers are uniformly added during the mixing process to ensure that they are uniformly distributed in the UHPC matrix (1); Mould design and production steps: design and produce moulds with high precision and high adaptability, and the inner surface of the mould is specially treated to reduce concrete adhesion; In the pouring and molding step, the evenly mixed UHPC concrete is poured into the mold, and the pores and air are removed by vibration or other means to shape the concrete in the mold; Maintenance step: fully maintain the formed components to achieve the expected strength and durability; Demolding and surface treatment steps: remove the cured component from the mold and perform necessary surface treatment to meet the use requirements; Surface decoration layer (3) attachment step: selecting a suitable decoration material, evenly coating a layer of adhesive having good compatibility with the UHPC substrate (1) and the decoration material on the surface of the component, and attaching the pretreated decoration material to the surface of the UHPC substrate (1).

4. The production process of the UHPC curved hyperboloid component according to claim 3 is characterized in that: (1) In the UHPC mixing step, a professional concrete mixer is used for mixing, and the mixing time and mixing speed are controlled according to the characteristics of the raw materials and the performance requirements of the concrete; (2) In the mold design and production steps, the mold design must fully consider the shape, size and precision requirements of the component to ensure that the molded component meets the design requirements; (3) During the pouring and molding steps, vibration is performed by means of a vibrating table or manual vibration to improve the density and strength of the concrete; (4) During the curing step, keep the concrete moist and avoid being affected by adverse external factors to ensure normal hardening and strength development of the concrete.

5. The production process of the UHPC curved hyperboloid component according to claim 3 or 4, characterized in that: Mold preheating step: Before pouring, the mold is preheated to control the temperature of the concrete when it enters the mold, reduce the internal stress caused by temperature differences, and thus improve the uniformity and quality of the components; Quality inspection steps: After demoulding and surface treatment, the UHPC curved hyperbolic components are subjected to quality inspection, including but not limited to dimensional accuracy, surface flatness, strength test and crack resistance test, to ensure that the components meet the design requirements and specifications.

6. The production process of the UHPC curved hyperboloid component according to claim 5, characterized in that: In the quality inspection step, non-contact measurement technology is used to detect dimensional accuracy and surface flatness to improve the accuracy and efficiency of inspection; The strength test in the quality inspection step uses standard specimens for destructive testing to verify the strength performance of the UHPC matrix (1); at the same time, the durability and crack resistance of the component are evaluated through accelerated aging tests that simulate the actual use environment.

7. The production process of the UHPC curved hyperboloid component according to claim 1, characterized in that: The mold is made of high-strength, high-wear-resistant materials, and the internal surface is sprayed with a release agent or physically or chemically modified to reduce the adhesion and damage of UHPC concrete during the demoulding process; The design of the mold takes into account the curved hyperbolic characteristics of the component, and adopts a split design or a multi-section splicing design to facilitate the manufacture, assembly and disassembly of the mold, while ensuring the accuracy and consistency of the molded component; A supporting structure and a positioning device are arranged inside the mold to ensure the stability of the mold and the shape accuracy of the component during the pouring and vibration process.

8. The production process of the UHPC curved hyperboloid component according to claim 1, characterized in that: The mold support structure and positioning device adopt an adjustable design to meet the production needs of curved hyperboloid components of different sizes and shapes; A sealing device is provided at the joint interface of the mold to prevent concrete from leaking from the interface during the pouring process, which would affect the molding quality of the component.

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