Concrete impermeability testing device and method

Abstract

The invention belongs to the technical field of impervious performance testing, and particularly relates to a concrete impervious performance testing device and method.The concrete impervious performance testing device comprises a device body, a workbench and a columnar testing mold, and the testing mold comprises a fixed mold integrally connected with the workbench and a movable mold sliding on the workbench; an infrared camera for acquiring an infrared image of a concrete test piece in the test mold is arranged above the test mold; a water seepage table with a water seepage groove in the upper surface is arranged at the bottom end of the test mold, the middle of the water seepage groove is connected with a water inlet pipe and a valve through a water outlet, a first assembly is arranged in the axis center of the water outlet, a channel is formed between the water outlet and the valve, and a second assembly is arranged on one side of the channel and detects the airtightness of the water seepage table and the test mold by using the movable mold to approach the fixed mold. According to the test device, hydraulic equipment does not need to be used for compressing the test piece and the test mold, a large amount of screw tightening work is avoided, and when the test device is used, the test piece is directly put into the water seepage table, and then the fixed mold and the movable mold are fixed.

Description

technical field [0001] The invention belongs to the technical field of impermeability performance testing, and particularly relates to a concrete impermeability performance testing device and method. Background technique [0002] The impermeability of concrete is the basic performance of concrete and an important feature of concrete durability. The impermeability of concrete not only characterizes the ability of concrete to resist water flow through, but also affects the properties of concrete such as carbonization resistance and chloride ion penetration resistance. The impermeability grade is determined by the maximum water pressure that the 28-day-old standard specimen can withstand when tested according to the standard test method. [0003] GB50164-2011 "Concrete Quality Control Standard" clearly stipulates how to carry out the concrete impermeability test: the specimen is cured until it is taken out one day before the test, the surface is dried, and then a layer of molt...

AI Technical Summary

Problems solved by technology

[0004] The traditional concrete is placed in the impermeability test device (such as Figure 7 Shown) detection requires multiple operations, such as smearing sealing material on the side of the test piece, loading the test piece through hydraulic equipment, etc. In the prior art, the concrete test piece is placed on the water seepage platform of the test device after being molded, and then Tighten at least six screws to fix, the operation is cumbersome and the overall airtightness of the device cannot be guaranteed

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