A method for analyzing fracture properties of rubberized concrete based on temperature and humidity changes

Abstract

The invention discloses a method for analyzing the fracture performance of rubber concrete based on temperature and humidity changes. The representative rubber concrete test samples are prepared through strict mixing ratio of raw materials, and then the rubber concrete test samples are treated with different temperatures and humidity according to the test requirements, so as to simulate the daily use environment of the test samples, and then pass the universal test The machine and DIC system conduct fracture test and test observation on the rubber concrete test sample, so as to study the fracture performance of rubber concrete under different temperature and humidity environments through macroscopic mechanical properties test, and carry out scientific and rigorous formula calculation of the experimental results, and use the calculation results to determine the fracture performance of rubber concrete. Analysis of the influence of temperature and humidity on the fracture properties of rubberized concrete.

Description

technical field [0001] The invention relates to the technical field of material performance analysis, in particular to a method for analyzing the fracture performance of rubber concrete based on temperature and humidity changes. Background technique [0002] Rubberized concrete is a concrete formed by mixing and curing with rubber emulsion and auxiliary admixtures with cement when preparing cement mortar or concrete. It has excellent impact resistance and wear resistance, and can better solve the problem of recycling waste rubber products. Compared with ordinary concrete, rubberized concrete has better performance in anti-abrasion, anti-cracking, anti-seepage, anti-freezing, anti-seismic and other properties, and can effectively reduce the use of natural aggregates and the accumulation of waste rubber products. There are good application prospects in engineering, but with the increase of rubber content, the strength of rubberized concrete continues to decline, which limits i...

AI Technical Summary

Problems solved by technology

[0002] Rubber concrete is a concrete formed by mixing and curing rubber emulsion and auxiliary admixtures with cement when preparing cement mortar or concrete. It has excellent impact resistance and wear resistance, and can better solve the problem of recycling waste rubber products. Compared with ordinary concrete, rubber concrete has better performance in terms of abrasion resistance, crack resistance, seepage resistance, frost resistance, and earthquake resistance, and can effectively reduce the use of natural aggregates and the accumulation of waste rubber products. It has good application prospects in engineering, but with the increase of rubber content, the strength of rubber concrete continues to decline, which limits its engineering application to a certain extent;

[0003] Cracks are one of the important factors affecting the quality of rubber concrete. In order to promote the application of rubber concrete in practical engineering such as water conservancy, civil engineering, and transportation, it is necessary to analyze the fracture performance of rubber concrete under different temperature and humidity environments to reveal The mechanism of the fracture performance of rubber concrete affected by temperature and humidity can prolong the service life of concrete structures. However, there are still few analyzes on the fracture performance mechanism of rubber concrete, and the analysis process is not scientific and rigorous enough. Most of them are not representative, therefore, the present invention proposes a method for analyzing the fracture performance of rubber concrete based on temperature and humidity changes to solve the problems in the prior art

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