Flowing water salt corrosion test device and test method of asphalt mixture

Abstract

The invention discloses a flowing water salt corrosion test device and test method of an asphalt mixture. The test device comprises a circular pressurization mechanism, a test chamber, a test bottle, a test piece fixing disc and a test piece fixing mould, wherein the test chamber is arranged on the circular pressurization mechanism; the test bottle is arranged in the test chamber; the test piece fixing disc is arranged in the test bottle; the test piece fixing mould is placed in the test piece fixing disc. The test method comprises the following steps: sample preparation, sample loading, testing, data analyzing, result assessment and the like. The test device and the test method have the beneficial effects that (1) a flowing water salt corrosion test is performed on a plurality of asphalt mixture Marshal test pieces simultaneously, so that the reliability of test data can be remarkably improved, and the test progress is greatly accelerated; (2) the high temperature stability, the low temperature anti-cracking ability, the water stability and the like of the asphalt mixture under a flowing water salt corrosion condition can be studied; (3) according to the test method, the influences of different salt corrosion conditions and vehicle load effects on the pavement performance of the asphalt mixture can be simulated more truly.

Description

technical field [0001] The invention relates to a test device and a test method, in particular to an asphalt mixture dynamic water salt corrosion test device and a test method, belonging to the technical field of road engineering test equipment. Background technique [0002] Water erosion of asphalt mixture is an important cause of asphalt pavement damage. At present, asphalt mixture is widely used in highway pavement engineering, and water erosion has an important impact on the performance and service life of pavement structure. Therefore, it is of great significance to comprehensively evaluate the water erosion of asphalt mixture. [0003] The tests widely used to evaluate the water damage of asphalt mixture include water immersion Marshall test and freeze-thaw splitting test, etc. The main test devices used are constant temperature water tank, asphalt Marshall stability tester and so on. The use of these tests and devices is to evaluate the static water erosion of asphal...

AI Technical Summary

Problems solved by technology

The use of these tests and devices is to evaluate the static water erosion of asphalt mixture, and there is still a lack of corresponding test methods and test devices for the study of dynamic water erosion.

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