Cold supplement asphalt mixture low temperature working performance testing device and testing method

Abstract

The invention discloses a cold supplement asphalt mixture low temperature working performance testing device and testing method. The testing device comprises a temperature chamber and a penetrometer, wherein the temperature chamber is used for keeping the cold supplement asphalt mixture at the constant temperature during the whole testing process, and the penetrometer is used for testing the low temperature working performance of the asphalt mixture; a charging basket used for accommodating a cold supplement asphalt mixture sample is arranged on the temperature chamber, a penetration hole is formed in the top of the temperature chamber, and a glass tubular column capable of preventing the penetrometer from moving left and right during falling is mounted in the penetration hole; the penetrometer extends into the asphalt mixture in the charging basket via the penetration hole. The cold supplement asphalt mixture low temperature working performance testing device is designed for testing the low temperature working performance of the cold supplement asphalt mixture, so that the device can quantitatively test the low temperature working performance of the cold supplement asphalt mixture and the testing result has stronger persuasion. The testing device is simple and easy to take along, the operation is convenient, the testing process is fast, the test can be conducted at any time, and the device is more suitable for testing the low temperature working performance of the on-site cold supplement asphalt mixture.

Description

Technical field [0001] The invention belongs to the field of road engineering test equipment, and specifically relates to a test device and a test method for the low-temperature working performance of a cold patch asphalt mixture. Background technique [0002] Asphalt pavement repair is mainly to repair and strengthen diseases such as potholes, looseness, and local network cracks. At the same time, it can also treat diseases such as local subsidence, crowding, and slippage cracks. The current common treatment methods in my country are mainly heat repair Methods, including the use of heat sources (liquefied petroleum gas, infrared heating technology, etc.) thermal regeneration method, jet repair method, etc. Both traditional thermal repair and thermal regeneration repair methods are easily affected by the climate. Heating and rolling are required during construction, which has a relatively large impact on environmental pollution and workers' health. It cannot be constructed during ...

AI Technical Summary

Problems solved by technology

[0005] The shortcomings of the empirical judgment method are: the test results are greatly affected by subjective factors, and they are only qualitative judgments, and quantitative measurement cannot be realized, and the reliability of the judgment results is poor.

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