Sealing material for testing of impermeability of concrete and application method thereof

Abstract

The invention provides a sealing material for testing of impermeability of concrete and an application method thereof. The sealing material for testing of impermeability of concrete is a pasty mixture prepared by mixing lubricating butter and cement according to a weight ratio of 1: (2.4-2.6). The application method comprises the following steps: S1, weighing the lubricating butter and cement according to the above-mentioned weight ratio and carrying out stirring to obtain the pasty mixture; S2, uniformly coating a side surface of an impermeability test piece of the concrete with the mixture; S3, sleeving the impermeability test piece of the concrete with a testing die until the bottom of the testing die is aligned with the lower surface of the impermeability test piece of the concrete; S4, installing the testing die and the impermeability test piece of the concrete onto an impermeability tester together for testing; and S5, after completion of the test, taking the impermeability test piece of the concrete out from the testing die and treating the impermeability test piece of the concrete and adhering mixtures together. According to the invention, impermeability testing cost is reduced; the sealing process of concrete impermeability testing is simple and is prevented from harming the health of testing personnel and polluting the environment; and the sealing performance and anti-compression capability of impermeability testing are improved.

Description

technical field [0001] The invention belongs to the technical field of concrete anti-seepage test sealing, in particular to a sealing material for concrete anti-seepage test and a use method. Background technique [0002] The impermeability of concrete is an important manifestation of the durability index of concrete. The quality of impermeability is directly related to the quality of concrete structure, so the impermeability of concrete is the focus of concrete durability testing. The sealing process between the specimen and the test mold is a crucial link in the process of concrete impermeability testing, and the selection of sealing materials is also particularly important. At present, the sealing materials used in the impermeability test are generally paraffin, wax, rosin, tung ash oil, asphalt, etc., especially paraffin plus rosin is a commonly used sealing material, but these materials are expensive, easy to cause air pollution, and endanger the test. the health of pe...

AI Technical Summary

Problems solved by technology

At present, the sealing materials used in the impermeability test are generally paraffin, wax, rosin, tung ash oil, asphalt, etc., especially paraffin plus rosin is a commonly used sealing material, but these materials are expensive, easy to cause air pollution, and endanger the test. staff health

Using the above-mentioned sealing material or a combination of several sealing materials, before conducting the concrete impermeability test, the sealing material must be heated and melted first, so that the liquid sealing material can be coated on the side of the concrete impermeability test piece to form a sealing layer. The sealing process of the concrete impermeability test is more troublesome, and it also takes a long time and a lot of manpower

In addition, the sealing performance and compression resistance of the above-mentioned sealing materials need to be further improved.