Compression-Cast Rubber Concrete Strength Prediction Model
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Solution Overview
Problem
Existing methods are unable to accurately determine the compressive bearing capacity of compression-cast rubber fine aggregate concrete using data from normal cast concrete, such as rubber substitution rates, compression stress, and compressive strength.
Innovation Solution
A method involving the acquisition of strength information from normal cast concrete, normal cast rubber fine aggregate concrete, and compression-cast rubber fine aggregate concrete, followed by the construction of initial and target equations to determine the compressive bearing capacity of the compression-cast rubber fine aggregate concrete.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If rubber is added to concrete as aggregate, then environmental harm is reduced and resource over-exploitation is reduced, but the strength and elastic modulus of concrete decrease
Solution Approach 1:
The patent applies parameter changes by establishing mathematical models that relate rubber substitution rate, compression stress, and compressive strength through specific equations. By changing the parameters of rubber content and compression stress, the concrete strength can be predicted and optimized to achieve environmental benefits while maintaining acceptable mechanical performance.
2Productivity
If rubber substitution rate increases, then waste rubber utilization increases, but compressive strength of concrete decreases
Solution Approach 1:
The patent uses parameter changes by creating a mathematical model that quantifies the relationship between rubber substitution rate and compressive strength. The model allows determination of the maximum rubber substitution rate that maintains required strength levels, enabling optimized waste rubber utilization.
3Strength
If compression stress increases, then compressive strength of concrete improves, but energy consumption increases
Solution Approach 1:
The patent applies parameter changes by establishing a mathematical relationship between compression stress and compressive strength. This model enables determination of the minimum required compression stress to achieve target strength, avoiding excessive energy consumption while ensuring adequate strength.
4Device complexity
If existing design schemes are used, then design simplicity is maintained, but accurate determination of compressive strength is impossible
Solution Approach 1:
The patent replaces mechanical testing with mathematical modeling. By substituting physical testing with calculated models based on rubber substitution rate, compression stress, and material properties, the method achieves accurate compressive strength determination without complex testing equipment or procedures.
Data Source
AI summary
A method for determining a compressive strength of compression-cast rubber fine aggregate concrete is provided. The method includes: first strength information of normal cast concrete, second strength information of corresponding normal cast rubber fine aggregate concrete, and third strength information of compression-cast rubber fine aggregate concrete; a target equation between a compressive strength of the normal cast concrete, a compressive strength of the compression-cast rubber fine aggregate concrete, the rubber substitution rate and a compression stress is constructed according to the first strength information, the second strength information and the third strength information; target parameters of the compression-cast rubber fine aggregate concrete are acquired, and the target parameters are inputted into the target equation which outputs a current compressive strength of the compression-cast rubber fine aggregate concrete. The compressive strength of the compression-cast rubber fine aggregate concrete can be accurately determined.