Concrete material high temperature splitting testing machine, and high temperature splitting testing method

Abstract

The invention provides a concrete material high temperature splitting testing machine, and a high temperature splitting testing method. The concrete material high temperature splitting testing machine comprises a loading device used for applying pressure on concrete test pieces, a heating device used for heating the concrete test pieces, and a displacement acquisition device used for measuring splitting deformation of the concrete test pieces. In concrete experiments, artful combination of the heating device and the loading device is realized, and the displacement acquisition device is also used, so that a comprehensive test system which can be used for concrete test piece high temperature splitting testing is formed, synchronous heating and loading is realized, and realistic simulation of the environment of concrete at fire disaster high temperature can be realized; and the results of concrete material tests using the concrete material high temperature splitting testing machine are extremely close to the results of the practical splitting performance of concrete at fire disaster high temperature, so that guarantees are provided for study on high temperature and fire-resistant performance of concrete materials.

Description

Technical field [0001] The invention relates to a concrete material mechanical performance testing machine, in particular to a testing machine for the split tensile strength and split tensile deformation of ordinary concrete, fiber concrete, recycled concrete, high-strength concrete and other materials at high temperatures; and also relates to the mechanics of concrete materials Performance test methods, especially test methods for split tensile strength and split tensile deformation of concrete at high temperature. Background technique [0002] Concrete is the most widely used and most used building material in engineering construction. In recent years, with the deepening of the application of concrete materials in high-rise, towering, large-span and other special conditions and harsh environments, new requirements have been put forward for the high-temperature fire resistance of concrete materials. Corresponding high-temperature test equipment is urgently needed to develop high...

AI Technical Summary

Problems solved by technology

In practical application, it is found that no matter it is the post-high temperature splitting test or the approximate high temperature medium splitting test, the results of the concrete high temperature medium splitting test are quite different from the actual splitting performance of concrete in the high temperature fire.

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