Concrete load environment permeability test equipment

Abstract

The invention discloses concrete load environment permeability test equipment. The concrete load environment permeability test equipment comprises a shell, wherein the shell comprises a shell body and a cover plate, the upper end of the shell body is open, the cover plate is detachably installed on the shell body, a water leakage hole penetrating through the shell body is formed in the bottom part of the shell body, a liquid collector is located below the water leakage hole, an operation hole penetrating through the cover plate is formed in the cover plate, and a force application end of a load application device extends into the shell from the operation hole to press a sample; and a temperature control device is arranged in the shell, a water pressure detection device is arranged at the bottom part of the shell, a wireless diving camera is arranged in the shell, and a water head pressure applying device is communicated with the shell through a water pipe and used for applying water pressure to liquid in the shell. Under the action of different loads, different environment temperatures, different pH value environments and different water head pressures, the water seepage amount of the concrete test piece can be obtained by visually observing and comparing the concrete test pieces with different parameters, and the anti-permeability performance of the concrete test piece is evaluated.

Description

technical field [0001] The invention relates to the technical field of exploration geotechnical construction, in particular to a concrete load environment penetration test equipment. Background technique [0002] Leakage is a common disease in underground concrete structure engineering. It will not only accelerate the durability damage of underground structure concrete, but also one of the problems that plague engineers. In my country, the annual leakage funds for underground concrete structures account for about 50% of the total maintenance costs. . In the face of the large demand for concrete materials and the high requirements of concrete impermeability and waterproof performance in the development of underground space structures in my country, the development of high impermeability green concrete materials is the basis for ensuring the service life of underground engineering structures, and the key to characterize the impermeability of concrete materials The method and ev...

AI Technical Summary

Problems solved by technology

At present, the concrete penetrometers on the domestic market cannot test the permeability coefficient of concrete under different working conditions, especially under load. The research on the impermeability of concrete mostly uses non-destructive concrete specimens for impermeability tests, while concrete in actual underground engineering Structural materials are under very complex load and environment coupling effects, so the current test results cannot truly reflect the impermeability of concrete under different working conditions in the normal use stage, and research on the impermeability of concrete under the coupling of load and environment is relatively limited. Few, a few self-made test instruments have shortcomings such as bulky size, difficult crack observation, time-consuming handling, and laborious disassembly

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