Concrete material in-high-temperature compression testing machine and in-high-temperature compression testing method

Abstract

The invention provides a concrete material in-high-temperature compression testing machine and an in-high-temperature compression testing method. The concrete material in-high-temperature compression testing machine comprises loading equipment for applying pressure on a concrete test-piece, heating equipment for heating the concrete test-piece, and a displacement acquisition device for measuring the deformation of the concrete test-piece. According to the concrete material in-high-temperature compression testing machine, the heating equipment and the loading equipment for concrete testing are skillfully combined together, and are assisted by the displacement acquisition device, so that a comprehensive testing system capable of being used for concrete test-piece in-high-temperature compression testing is formed, synchronization of heating and loading is realized, a concrete environment in high temperature due to fire can be truly simulated, a test result obtained by performing a concrete material test through the concrete material in-high-temperature compression testing machine is very close to actual compressive property of concrete in high temperature due to fire, and a guarantee is provided for researching high temperature performance and fire resistance of a concrete material.

Description

technical field [0001] The invention relates to a testing machine for the mechanical properties of concrete materials, in particular to a testing machine for compressive strength and constitutive relationship of materials such as ordinary concrete, fiber concrete, recycled concrete, and high-strength concrete at high temperatures; it also relates to the mechanical properties of concrete materials. Performance test methods, especially the test methods of compressive strength and constitutive relationship 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 in-depth application of concrete materials in special conditions such as high-rise, high-rise, long-span and harsh environments, new requirements have been put forward for the high-temperature fire resistance of concrete materials, and corresponding high-temperature test equipment is urgently nee...

AI Technical Summary

Problems solved by technology

In practical application, it is found that whether it is the high temperature post-compression test or the approximate high-temperature medium-compression test, the results of the concrete high-temperature medium-compression test results are quite different from the actual compressive properties of concrete in the high-temperature fire

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