Asphalt pavement permeability testing device

By introducing a heat-conducting barrel and an intelligent control valve into the asphalt pavement permeability testing device, the problem of insufficient sealing between the device and the pavement was solved, achieving stable sealing during the testing process and ensuring the accuracy of permeability testing.

CN121917422AActive Publication Date: 2026-04-24BEIJING ZHIHUATONG TECH CO LTD
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Patent Information

Application Number
CN202610210274.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-13
Publication Date
2026-04-24
Estimated Expiration
2046-02-13

AI Technical Summary

Technical Problem

Existing asphalt pavement permeability testing devices have insufficient sealing with the pavement during the initial water injection phase, and water pressure fluctuations during the test cause water to seep out, affecting the accuracy of the test data.

Method used

A device was designed that includes a measuring cylinder, a testing barrel, a trolley, a threaded rod, a support frame, a lifting ring, and a heat-conducting barrel. The sealing components are pressed tightly by the gravity of the water inside the heat-conducting barrel, and combined with an intelligent control valve and a sealing ring, the sealing components are stably fitted, reducing the impact of water pressure fluctuations.

Benefits of technology

This improves the sealing performance and data accuracy of the permeability test, prevents the test water from leaking out during the initial and subsequent stages, and ensures the reliability of the test results.

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Abstract

The invention discloses an asphalt pavement permeability testing device, and belongs to the technical field of asphalt pavement permeability test.The testing device comprises a measuring cylinder used for measuring and detecting water consumption of asphalt pavement permeability, and a detection barrel is fixedly installed below the measuring cylinder through a valve pipe; a sealing assembly is fixed at the bottom of the detection barrel, a lifting ring is slidably mounted outside the detection barrel, the lifting ring is pressed above the sealing assembly, a plurality of pressing blocks are fixed outside the detection barrel in the direction of the central axis at equal angles, and the pressing blocks are pressed above the lifting ring; a heat conduction barrel for balancing and detecting the ground temperature of water and asphalt is movably arranged in the detection barrel in the axis direction, and a horizontal intelligent control valve and a vertical intelligent control valve are mounted on the heat conduction barrel; the testing device can dynamically adjust the fitting degree of the sealing assembly and the asphalt pavement at the initial stage, the middle stage and the later stage of testing, detection water leakage is avoided, and the reliability of testing data is improved.
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