Hollow rubber seal full-automatic permeability coefficient tester and test method thereof

Abstract

The invention discloses a hollow rubber seal full-automatic permeability coefficient tester and a test method thereof. The tester comprises a test stand, a sample fixation device and an electronic control system. The upper part of the test stand is provided with a water inlet pipe, and the ends of the water inlet pipe are provided with nozzles, the middle part of the test stand is equipped with sample placement cavities, and the lower parts of the sample placement cavities are water storage cavities. The sample fixation device includes a circular sleeve and a hollow rubber seal kit, the hollowrubber seal kit is formed by arrangement of several hollow rubber rings, and the rubber rings are internally equipped with air inflation branch pipes, and the air inflation branch pipes are connectedto air inflation main pipes. The electronic control system includes electronic switches disposed on the water inlet pipe pipeline, the air inflation main pipe pipelines and water storage cavity wateroutlet pipelines, flowmeters on the water storage cavity water outlet pipelines and a control center. The tester provided by the invention employs the hollow rubber seal rings to ensure the sample airtightness, improves the permeability coefficient test precision, is convenient to operate, and has high automation degree.

Description

technical field [0001] The invention belongs to the technical field of water permeability coefficient detection, and in particular relates to a hollow rubber seal automatic water permeability coefficient tester and a testing method thereof. Background technique [0002] Sponge city refers to a city that can be like a sponge and has good flexibility in adapting to environmental changes and responding to natural disasters. When it rains, it absorbs, stores, infiltrates, and purifies water, and releases and utilizes the stored water when needed. In recent years, with the continuous construction of sponge cities, a large amount of permeable concrete has been widely used in municipal roads. Permeable pavement can make precipitation infiltrate into the ground, reduce road runoff, reduce urban flood hazards, and have the ability to replenish groundwater and improve the ecological environment. role. Therefore, the popularization and application of permeable pavement is one of the i...

AI Technical Summary

Problems solved by technology

[0003] The water permeability coefficient is one of the important indicators of the permeable pavement. It is generally tested according to the building materials industry standard JCT945-2005 of the People's Republic of China. However, the specification only stipulates the definition and detection principle of the water permeability coefficient. The specific operation details are not uniformly stipulated, so Personnel in this industry each have their own test methods, usually using extremely simple permeable devices for testing, not fully automatic test equipment, which greatly affects the accuracy of the water permeability coefficient

In addition, the existing sealing method usually uses paraffin or polypropylene glue to apply to the test piece. This sealing method not only easily causes the surface of the sample to be uneven, but also causes water to easily leak from around the sample, affecting the test. The accuracy of the results, and the operation process is cumbersome, it is not easy to clean up after the test, and it is easy to cause damage to the test equipment

[0004] In summary, it can be seen that the traditional simple water permeability testing instruments and sealing methods can no longer meet the current technical needs

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