A commercial concrete impermeability testing device

CN224317475UActive Publication Date: 2026-06-02ZAOZHUANG TIANRUNDA IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZAOZHUANG TIANRUNDA IND CO LTD
Filing Date
2025-07-20
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The sealing method of existing concrete impermeability testing devices is easily affected by the environment. The grease is easily squeezed out and softened under pressure and cannot simulate high temperature environment, resulting in the distortion of test data at high temperature, which cannot guide the selection of materials and design in engineering.

Method used

The system employs an annular airbag sealing structure and a heating component. The annular airbag expands and adaptively fills the tiny defects on the surface of the test block to ensure sealing. The heating component achieves uniform heating through a hot air blower and a conduit system, simulating a high-temperature environment.

Benefits of technology

It improves the reliability of the seal and the accuracy of test data, and can simulate the seepage path and moisture migration rate of concrete at high temperatures, providing more instructive test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a commercial concrete permeability testing device, belonging to the field of concrete permeability testing technology. Its key technical features include a testing body with multiple sets of test mold components on its top. A support frame is fixedly connected to the rear side of the top of the testing body. By setting the test mold components, air is inflated into an annular air bladder through an inflation tube. The air bladder expands inward under pressure, thus adaptively filling the gaps formed by minor pitting, air bubbles, and dimensional deviations on the side of the test block, preventing sealing failure due to pressure decay and significantly improving the accuracy of the permeability test. A heating component is also included, where hot air generated by a hot air blower enters the hollow test mold cavity and is then blown onto the side of the test block through evenly distributed heat outlets on the inner wall, forming a surrounding heating effect. This ensures uniform heating of the test block, thereby simulating a high-temperature environment for the concrete test block and making the test data more valuable for engineering guidance.
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