Rubber concrete mix proportion design method and system
By constructing an analysis model for the splitting tensile strength of rubber concrete and using a deep learning algorithm, the mix design of rubber concrete was optimized, solving the problem of inaccurate control of the splitting tensile strength of rubber concrete and improving the accuracy and efficiency of the design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SOUTHWEAT UNIV OF SCI & TECH
- Filing Date
- 2026-03-09
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies struggle to precisely control the splitting tensile strength of rubber concrete, especially with large fluctuations in performance when different rubber dosages are used. Furthermore, the mix design process is cumbersome and relies heavily on experience, resulting in insufficient predictability and stability of the results.
By constructing a primary analytical model for the splitting tensile strength of rubber concrete and combining it with a deep learning algorithm, the influence of the rubber volume fraction in rubber concrete is analyzed using the splitting tensile strength and Poisson's ratio of benchmark concrete, thereby optimizing the mix design of rubber concrete.
This approach improves the accuracy and efficiency of rubber concrete mix design, reduces repeated testing in traditional methods, and ensures that the quality and performance of rubber concrete meet construction requirements.
Smart Images
Figure CN121809291B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building materials technology, and discloses a method and system for designing the mix proportion of rubber concrete. Background Technology
[0002] Studies have shown that the incorporation of rubber aggregates can effectively improve the mechanical properties of concrete, particularly in enhancing its sustainable plastic deformation bearing capacity, damage tolerance, and toughness. The addition of rubber particles allows concrete to better absorb and disperse energy under stress, thereby delaying crack propagation and improving the material's durability and impact resistance. However, with the continuous increase in the amount of rubber aggregates, the mechanical strength of concrete typically shows a downward trend, leading to a certain impact on the overall load-bearing capacity.
[0003] To achieve the required splitting tensile strength in rubber concrete mix design, existing technologies employ various methods for exploration and optimization. For example, adjusting cement dosage, changing the water-cement ratio, and introducing various chemical admixtures (such as water-reducing agents and thickeners) or mineral admixtures (such as fly ash and slag powder) can improve the workability and mechanical properties of the concrete. However, these methods often struggle to achieve precise control over the splitting tensile strength, especially when dealing with different rubber content, where the effects can fluctuate significantly. Furthermore, the mix design process is experience-dependent and complex, resulting in insufficient predictability and stability of the results. Summary of the Invention
[0004] The purpose of this invention is to provide a method and system for designing rubber concrete mix proportions, which can accurately analyze the rubber concrete mix proportions that meet the splitting tensile strength requirements of construction design.
[0005] To achieve the above-mentioned technical effects, the technical solution adopted by the present invention is as follows:
[0006] A method for designing the mix proportions of rubber concrete, comprising:
[0007] S1. Obtain the splitting tensile strength and Poisson's ratio of reference concrete with different reference raw material ratios after curing under preset curing conditions to a specified age; the reference raw material components of the reference concrete include cement, coarse aggregate, fine aggregate, and water;
[0008] S2. According to the principle of equal volume replacement, rubber material is used to replace the fine aggregate in the raw material components under the corresponding mix ratio to prepare the corresponding rubber concrete, and the splitting tensile strength of rubber concrete with different rubber volume fraction under each benchmark raw material component after curing under the preset curing conditions to the specified age is obtained.
[0009] S3. Based on the splitting tensile strength and Poisson's ratio of each group of reference concrete, and the splitting tensile strength of the rubber concrete, construct the first analytical model for the splitting tensile strength of the rubber concrete.
[0010] S4. Based on the splitting tensile strength and Poisson's ratio of the reference concrete of the reference raw material components given in the construction design, and the splitting tensile strength of the rubber concrete required by the construction design, the replacement volume fraction of fine aggregate in the reference raw material components given in the construction design is obtained by using the first analysis model, and the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design is obtained.
[0011] Furthermore, the first analytical model for the splitting tensile strength of the constructed rubber concrete is as follows: ,in This refers to the splitting tensile strength of rubber-reinforced concrete. The splitting tensile strength of the reference concrete. This represents the volume fraction of rubber in rubber-concrete. The Poisson's ratio of the reference concrete. , These are coefficients, obtained through data fitting.
[0012] Furthermore, based on the splitting tensile strength and Poisson's ratio of each set of reference concrete and the splitting tensile strength of the rubber concrete, a first analytical model for the splitting tensile strength of the rubber concrete is constructed using a deep learning algorithm.
[0013] Furthermore, step S2 also includes obtaining the compressive strength of the corresponding rubber concrete after curing under the preset curing conditions to a specified age; using the splitting tensile strength of the rubber concrete as input and the compressive strength of the corresponding rubber concrete as output, a second analytical model between the compressive strength and splitting tensile strength of the rubber concrete is constructed.
[0014] Based on the required splitting tensile strength of the rubber concrete in the construction design as input, the output value of the corresponding compressive strength of the rubber concrete is obtained by analyzing the second analysis model.
[0015] The compressive strength output value is the lower limit of the compressive strength of the corresponding rubber concrete. If the compressive strength test value of the rubber concrete prepared by the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design and cured to the specified age under the preset curing conditions is greater than or equal to the lower limit of the compressive strength, then the rubber concrete mix proportion corresponding to the current reference concrete meets the requirements; otherwise, the mix proportion of the reference concrete is adjusted until the compressive strength test value of the corresponding rubber concrete is greater than or equal to the lower limit of the compressive strength.
[0016] Furthermore, the second analytical model is ,in This represents the compressive strength value of rubber concrete. This refers to the splitting tensile strength of rubber-reinforced concrete. For coefficients, The root index, , Obtained through data fitting.
[0017] To achieve the above-mentioned technical effects, the present invention also provides a rubber concrete mix design system for implementing the aforementioned rubber concrete mix design method, comprising:
[0018] The first data acquisition module is used to obtain the splitting tensile strength and Poisson's ratio of benchmark concrete with different benchmark raw material ratios after curing under preset curing conditions to a specified age; the benchmark raw material components of the benchmark concrete include cement, coarse aggregate, fine aggregate, and water;
[0019] The second data acquisition module is used to obtain the splitting tensile strength of rubber concrete with different rubber volume fractions under each benchmark raw material component after curing under the preset curing conditions to a specified age; wherein the rubber concrete is prepared by replacing the fine aggregate in the raw material component with rubber material in equal volume according to the principle of equal volume replacement;
[0020] The first model construction module is used to construct a first analytical model of the splitting tensile strength of the rubber concrete based on the splitting tensile strength and Poisson's ratio of each set of reference concretes, as well as the splitting tensile strength of the rubber concrete.
[0021] The model analysis module is used to analyze the splitting tensile strength and Poisson's ratio of the reference concrete with reference raw material components given in the construction design, as well as the splitting tensile strength of the rubber concrete required by the construction design, using the first analysis model to obtain the replacement volume fraction of fine aggregate in the reference raw material components given in the construction design, and to obtain the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design.
[0022] Furthermore, in the first model construction module, the first analytical model for the splitting tensile strength of the rubber concrete is as follows: ,in This refers to the splitting tensile strength of rubber-reinforced concrete. The splitting tensile strength of the reference concrete. This represents the volume fraction of rubber in rubber-concrete. The Poisson's ratio of the reference concrete. , These are coefficients, obtained through data fitting.
[0023] Furthermore, in the first model construction module, based on the splitting tensile strength and Poisson's ratio of each set of reference concrete and the splitting tensile strength of the rubber concrete, a first analytical model of the splitting tensile strength of the rubber concrete is constructed using a deep learning algorithm.
[0024] Furthermore, the second data acquisition module is also used to obtain the compressive strength of the corresponding rubber concrete after curing under the preset curing conditions to a specified age; the rubber concrete mix design system further includes:
[0025] The second analytical model construction module is used to construct a second analytical model between the compressive strength and splitting strength of rubber concrete, with the splitting tensile strength of rubber concrete as input and the compressive strength of rubber concrete as output.
[0026] The compressive strength analysis module is used to analyze and obtain the corresponding compressive strength output value of rubber concrete based on the splitting tensile strength of rubber concrete required by the construction design, using the second analysis model.
[0027] The discrimination module is used to determine the lower limit of the compressive strength of the corresponding rubber concrete based on the output value of the compressive strength. If the compressive strength test value of the rubber concrete prepared by the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design and cured to the specified age under the preset curing conditions is greater than or equal to the lower limit of the compressive strength, then the rubber concrete mix proportion corresponding to the current reference concrete meets the requirements; otherwise, the mix proportion of the reference concrete is adjusted until the compressive strength test value of the corresponding rubber concrete is greater than or equal to the lower limit of the compressive strength.
[0028] Furthermore, in the second analysis model construction module, the constructed second analysis model is... ,in This represents the compressive strength value of rubber concrete. This refers to the splitting tensile strength of rubber-reinforced concrete. For coefficients, The root index, , Obtained through data fitting.
[0029] Compared with existing technologies, the beneficial effects of this invention are as follows: By obtaining the performance of benchmark concrete under different raw material ratios and combining it with the performance of rubber concrete after replacing fine aggregate with rubber material, this invention comprehensively considers the Poisson's ratio of the benchmark concrete and the amount of rubber aggregate replacing fine aggregate, accurately describing the influence mechanism of rubber aggregate on the splitting tensile strength of concrete, and constructing a first analytical model for the splitting tensile strength of rubber concrete, thereby guiding the optimized design of rubber concrete mix proportions. This model can accurately analyze the rubber concrete mix proportion that meets the splitting tensile strength required for construction design, providing a scientific and accurate mix proportion design method for the application of rubber concrete in practical engineering, significantly improving the efficiency and accuracy of rubber concrete mix proportion design, reducing the cumbersome process of repeated experiments in traditional methods, reducing cost input, and ensuring that the quality and performance of rubber concrete meet construction requirements. Attached Figure Description
[0030] Figure 1 This is a flowchart of the rubber concrete mix design method in Example 1 or 2;
[0031] Figure 2 This is a structural block diagram of the rubber concrete mix design system in Example 1;
[0032] The module comprises: 1. First data acquisition module; 2. Second data acquisition module; 3. First model construction module; 4. Model analysis module; 5. Second analysis model construction module; 6. Compressive strength analysis module; and 7. Discrimination module. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings. However, this should not be construed as limiting the scope of the above-described subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.
[0034] Example 1
[0035] See Figure 1 and Figure 2 A method for designing the mix proportions of rubber concrete, comprising:
[0036] S1. Obtain the splitting tensile strength and Poisson's ratio of reference concrete with different reference raw material ratios after curing under preset curing conditions to a specified age; the reference raw material components of the reference concrete include cement, coarse aggregate, fine aggregate, and water;
[0037] S2. According to the principle of equal volume replacement, rubber material is used to replace the fine aggregate in the raw material components under the corresponding mix ratio to prepare the corresponding rubber concrete, and the splitting tensile strength of rubber concrete with different rubber volume fraction under each benchmark raw material component after curing under the preset curing conditions to the specified age is obtained.
[0038] S3. Based on the splitting tensile strength and Poisson's ratio of each group of reference concrete, and the splitting tensile strength of the rubber concrete, construct the first analytical model for the splitting tensile strength of the rubber concrete.
[0039] S4. Based on the splitting tensile strength and Poisson's ratio of the reference concrete of the reference raw material components given in the construction design, and the splitting tensile strength of the rubber concrete required by the construction design, the replacement volume fraction of fine aggregate in the reference raw material components given in the construction design is obtained by using the first analysis model, and the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design is obtained.
[0040] In this embodiment, by obtaining the performance of benchmark concrete with different raw material ratios and combining it with the performance of rubber concrete after replacing fine aggregate with rubber material, the influence of rubber aggregate on the splitting tensile strength of concrete is accurately described by comprehensively considering the Poisson's ratio of the benchmark concrete and the amount of rubber aggregate replacing fine aggregate. A first analytical model for the splitting tensile strength of rubber concrete is constructed, which guides the optimized design of rubber concrete mix proportions. It can accurately analyze the rubber concrete mix proportion that meets the splitting tensile strength required for construction design, providing a scientific and accurate mix proportion design method for the application of rubber concrete in actual engineering. This greatly improves the efficiency and accuracy of rubber concrete mix proportion design, reduces the tedious process of repeated experiments in traditional methods, lowers costs, and ensures that the quality and performance of rubber concrete meet construction requirements.
[0041] Based on the same inventive concept, this embodiment also provides a rubber concrete mix design system for implementing the aforementioned rubber concrete mix design method, including:
[0042] The first data acquisition module 1 is used to obtain the splitting tensile strength and Poisson's ratio of benchmark concrete with different benchmark raw material ratios after curing under preset curing conditions to a specified age; the benchmark raw material components of the benchmark concrete include cement, coarse aggregate, fine aggregate, and water;
[0043] The second data acquisition module 2 is used to obtain the splitting tensile strength of rubber concrete with different rubber volume fractions under each benchmark raw material component after curing under the preset curing conditions to a specified age; wherein the rubber concrete is prepared by replacing the fine aggregate in the raw material component with rubber material in equal volume according to the principle of equal volume replacement;
[0044] The first model construction module 3 is used to construct a first analysis model of the splitting tensile strength of the rubber concrete based on the splitting tensile strength and Poisson's ratio of each group of reference concretes and the splitting tensile strength of the rubber concrete.
[0045] Model analysis module 4 is used to analyze the replacement volume fraction of fine aggregate in the reference raw material components given in the construction design, based on the splitting tensile strength and Poisson's ratio of the reference concrete and the splitting tensile strength of the rubber concrete required by the construction design, using the first analysis model, and to obtain the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design.
[0046] In this embodiment, the second data acquisition module 2 is further used to obtain the compressive strength of the corresponding rubber concrete after curing under the preset curing conditions to a specified age; based on this, the rubber concrete mix design system further includes:
[0047] The second analysis model construction module 5 is used to construct a second analysis model between the compressive strength and splitting strength of rubber concrete, with the splitting tensile strength of rubber concrete as input and the compressive strength of rubber concrete as output.
[0048] The compressive strength analysis module 6 is used to analyze and obtain the corresponding compressive strength output value of rubber concrete based on the splitting tensile strength of rubber concrete required by the construction design, using the second analysis model.
[0049] The discrimination module 7 is used to determine the lower limit of the compressive strength of the corresponding rubber concrete based on the output value of the compressive strength. If the compressive strength test value of the rubber concrete prepared by the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design and cured to the specified age under the preset curing conditions is greater than or equal to the lower limit of the compressive strength, then the rubber concrete mix proportion corresponding to the current reference concrete meets the requirements; otherwise, the mix proportion of the reference concrete is adjusted until the compressive strength test value of the corresponding rubber concrete is greater than or equal to the lower limit of the compressive strength.
[0050] Example 2
[0051] A method for designing the mix proportions of rubber concrete, the specific operation process of which is as follows:
[0052] S1. Obtain the splitting tensile strength and Poisson's ratio of reference concrete with different reference raw material ratios after curing under preset curing conditions to a specified age; the reference raw material components of the reference concrete include cement, coarse aggregate, fine aggregate, and water;
[0053] In some other embodiments, in addition to cement, coarse aggregate, fine aggregate, and water, the reference raw material components of the reference concrete may also include appropriate additives such as water-reducing agents, water-retaining agents, and foaming agents, depending on the engineering design requirements.
[0054] The splitting tensile strength test was conducted using standard methods on a universal testing machine, with the loading rate controlled within a preset range to ensure the accuracy of the results. The Poisson's ratio test involved simultaneously collecting transverse and longitudinal strain data using a strain gauge, and calculating the Poisson's ratio for each group of reference concrete. Ambient temperature and humidity were strictly controlled during the testing process to minimize the impact of external factors on the results. All test data were verified through three repeated tests, and the average value was taken to ensure data reliability and repeatability.
[0055] The curing conditions in this embodiment can be carbonation curing, standard curing, natural curing, etc., as long as the conditions are kept consistent. Standard curing involves placing the concrete specimens in a standard curing room with a temperature of 20±2℃ and a relative humidity of over 95%. Natural curing involves placing the concrete specimens under natural conditions at the construction site, taking appropriate moisturizing measures, such as covering them with plastic film, to prevent excessive moisture evaporation. The curing age is generally selected as 28 days, but it can also be 14 days, 56 days, or other specified assessment curing days.
[0056] S2. According to the principle of equal volume replacement, rubber material is used to replace the fine aggregate in the raw material components under the corresponding mix proportion to prepare the corresponding rubber concrete, and the compressive strength and splitting tensile strength of rubber concrete with different rubber volume fraction under each reference raw material component after curing under the preset curing conditions to the specified age are obtained.
[0057] S3. Based on the splitting tensile strength and Poisson's ratio of each group of reference concrete, and the splitting tensile strength of the rubber concrete, construct the first analytical model for the splitting tensile strength of the rubber concrete.
[0058] The first analytical model for the splitting tensile strength of the rubber concrete constructed in this embodiment is as follows: ,in This refers to the splitting tensile strength of rubber-reinforced concrete. The splitting tensile strength of the reference concrete. This represents the volume fraction of rubber in rubber-concrete. The Poisson's ratio of the reference concrete. , The coefficients are obtained through data fitting. This analytical model fully considers the influence of rubber volume fraction, the splitting tensile strength of the reference concrete, and Poisson's ratio on the splitting tensile strength of rubber concrete, and can accurately predict the splitting tensile strength of rubber concrete under different rubber volume fractions. Using this model, the replacement volume fraction of fine aggregate by rubber can be quickly calculated under known reference concrete mix proportion parameters and the required splitting tensile strength of the rubber concrete, providing important theoretical basis and reference for the mix design of rubber concrete.
[0059] In this embodiment, a data fitting method is used to construct the model. In some other embodiments, a first analytical model of the splitting tensile strength of the rubber concrete can be constructed using a deep learning algorithm based on the splitting tensile strength and Poisson's ratio of each set of reference concrete and the splitting tensile strength of the rubber concrete.
[0060] S4. Based on the splitting tensile strength and Poisson's ratio of the reference concrete of the reference raw material components given in the construction design, and the splitting tensile strength of the rubber concrete required by the construction design, the replacement volume fraction of fine aggregate in the reference raw material components given in the construction design is obtained by using the first analysis model, and the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design is obtained.
[0061] S5. Using the splitting tensile strength of rubber concrete as input and the corresponding compressive strength of rubber concrete as output, construct a second analytical model between the compressive strength and splitting tensile strength of rubber concrete.
[0062] In this embodiment, the second analysis model is ,in This represents the compressive strength value of rubber concrete. This refers to the splitting tensile strength of rubber-reinforced concrete. For coefficients, The root index, , Obtained through data fitting.
[0063] S6. Based on the required splitting tensile strength of rubber concrete in the construction design, the output value of the corresponding compressive strength of rubber concrete is obtained by analyzing the second analysis model.
[0064] S7. Using the output value of compressive strength as the lower limit of compressive strength of the corresponding rubber concrete, if the compressive strength test value of the rubber concrete prepared by the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design after curing under the preset curing conditions to the specified age is greater than or equal to the lower limit of compressive strength, then the rubber concrete mix proportion corresponding to the current reference concrete meets the requirements; otherwise, adjust the mix proportion of the reference concrete until the compressive strength test value of the corresponding rubber concrete is greater than or equal to the lower limit of compressive strength.
[0065] In this embodiment, the above operational steps systematically acquire the splitting tensile strength and Poisson's ratio data of benchmark concrete under different curing conditions. Combined with the principle of equal volume substitution, rubber concrete is prepared and its mechanical properties are tested. A first analytical model is constructed to achieve reverse derivation from material properties to mix proportion parameters. This method not only overcomes the blindness of traditional empirical mix proportioning methods but also, by establishing a quantitative relationship between rubber volume fraction and splitting tensile strength, shifts mix proportion design from qualitative adjustment to quantitative calculation, improving the efficiency and accuracy of rubber concrete mix proportion design. The second analytical model, through the correlation analysis of splitting tensile strength and compressive strength, can ensure compressive strength reserve while meeting splitting tensile strength performance requirements. It is suitable for the preparation of rubber concrete in engineering structures with special mechanical performance requirements, such as seismic joints and impact-resistant protective layers.
[0066] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A method for designing the mix proportions of rubber concrete, characterized in that, include: S1. Obtain the splitting tensile strength and Poisson's ratio of benchmark concrete with different benchmark raw material proportions after curing under preset curing conditions to a specified age; The reference raw material components of the reference concrete include cement, coarse aggregate, fine aggregate, and water; S2. According to the principle of equal volume replacement, rubber material is used to replace the fine aggregate in the raw material components under the corresponding mix ratio to prepare the corresponding rubber concrete, and the splitting tensile strength of rubber concrete with different rubber volume fraction under each benchmark raw material component after curing under the preset curing conditions to the specified age is obtained. S3. Based on the splitting tensile strength and Poisson's ratio of each group of reference concrete, and the splitting tensile strength of the rubber concrete, construct a first analytical model for the splitting tensile strength of the rubber concrete. ,in The splitting tensile strength of rubber concrete. The splitting tensile strength of the reference concrete, This represents the volume fraction of rubber in rubber-concrete. The Poisson's ratio of the reference concrete. , These are coefficients, obtained through data fitting; S4. Based on the splitting tensile strength and Poisson's ratio of the reference concrete of the reference raw material components given in the construction design, and the splitting tensile strength of the rubber concrete required by the construction design, the replacement volume fraction of fine aggregate in the reference raw material components given in the construction design is obtained by using the first analysis model, and the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design is obtained.
2. The method for designing the mix proportion of rubber concrete according to claim 1, characterized in that, Based on the splitting tensile strength and Poisson's ratio of each set of reference concrete and the splitting tensile strength of the rubber concrete, a first analytical model for the splitting tensile strength of the rubber concrete is constructed using a deep learning algorithm.
3. The method for designing the mix proportion of rubber concrete according to claim 1, characterized in that, Step S2 also includes obtaining the compressive strength of the corresponding rubber concrete after curing under the preset curing conditions to a specified age; using the splitting tensile strength of the rubber concrete as input and the compressive strength of the corresponding rubber concrete as output, a second analytical model between the compressive strength and splitting tensile strength of the rubber concrete is constructed. Based on the required splitting tensile strength of the rubber concrete in the construction design as input, the output value of the corresponding compressive strength of the rubber concrete is obtained by analyzing the second analysis model. The compressive strength output value is the lower limit of the compressive strength of the corresponding rubber concrete. If the compressive strength test value of the rubber concrete prepared by the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design and cured to the specified age under the preset curing conditions is greater than or equal to the lower limit of the compressive strength, then the rubber concrete mix proportion corresponding to the current reference concrete meets the requirements; otherwise, the mix proportion of the reference concrete is adjusted until the compressive strength test value of the corresponding rubber concrete is greater than or equal to the lower limit of the compressive strength.
4. The method for designing the mix proportion of rubber concrete according to claim 3, characterized in that, The second analytical model is ,in This represents the compressive strength value of rubber concrete. The splitting tensile strength of rubber concrete. For coefficients, The root index, , Obtained through data fitting.
5. A rubber concrete mix design system, used to implement the rubber concrete mix design method according to any one of claims 1-4, characterized in that, include: The first data acquisition module is used to obtain the splitting tensile strength and Poisson's ratio of benchmark concrete with different benchmark raw material ratios after curing under preset curing conditions to a specified age. The reference raw material components of the reference concrete include cement, coarse aggregate, fine aggregate, and water; The second data acquisition module is used to obtain the splitting tensile strength of rubber concrete with different rubber volume fractions under each benchmark raw material component after curing under the preset curing conditions to a specified age. Rubber concrete is prepared by replacing the fine aggregate in the raw material components with rubber material in the corresponding mix proportion according to the principle of equal volume replacement. The first model construction module is used to construct a first analytical model for the splitting tensile strength of the rubber concrete based on the splitting tensile strength and Poisson's ratio of each set of reference concretes, as well as the splitting tensile strength of the rubber concrete. ,in The splitting tensile strength of rubber concrete. The splitting tensile strength of the reference concrete, This represents the volume fraction of rubber in rubber-concrete. The Poisson's ratio of the reference concrete. , These are coefficients, obtained through data fitting; The model analysis module is used to analyze the splitting tensile strength and Poisson's ratio of the reference concrete with reference raw material components given in the construction design, as well as the splitting tensile strength of the rubber concrete required by the construction design, using the first analysis model to obtain the replacement volume fraction of fine aggregate in the reference raw material components given in the construction design, and to obtain the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design.
6. The rubber concrete mix design system according to claim 5, characterized in that, In the first model construction module, based on the splitting tensile strength and Poisson's ratio of each set of reference concrete and the splitting tensile strength of the rubber concrete, a first analytical model of the splitting tensile strength of the rubber concrete is constructed using a deep learning algorithm.
7. The rubber concrete mix design system according to claim 5, characterized in that, The second data acquisition module is also used to obtain the compressive strength of the corresponding rubber concrete after curing under the preset curing conditions to the specified age; The rubber concrete mix design system also includes: The second analytical model construction module is used to construct a second analytical model between the compressive strength and splitting strength of rubber concrete, with the splitting tensile strength of rubber concrete as input and the compressive strength of rubber concrete as output. The compressive strength analysis module is used to analyze and obtain the corresponding compressive strength output value of rubber concrete based on the splitting tensile strength of rubber concrete required by the construction design, using the second analysis model. The discrimination module is used to determine the lower limit of the compressive strength of the corresponding rubber concrete based on the output value of the compressive strength. If the compressive strength test value of the rubber concrete prepared by the rubber concrete mix proportion that meets the splitting tensile strength required by the construction design and cured to the specified age under the preset curing conditions is greater than or equal to the lower limit of the compressive strength, then the rubber concrete mix proportion corresponding to the current reference concrete meets the requirements; otherwise, the mix proportion of the reference concrete is adjusted until the compressive strength test value of the corresponding rubber concrete is greater than or equal to the lower limit of the compressive strength.
8. The rubber concrete mix design system according to claim 7, characterized in that, In the second analysis model construction module, the constructed second analysis model is: ,in This represents the compressive strength value of rubber concrete. The splitting tensile strength of rubber concrete. For coefficients, The root index, , Obtained through data fitting.