Asphalt regenerating agent diffusion test device and testing method

Abstract

The invention provides an asphalt regenerating agent diffusion test device and a testing method. Aiming at solving the problems that a relevant experiment device of the diffusion of the asphalt regenerating agent does not exist at present and an evaluation method is not efficient and accurate enough, the invention relates to a testing device of diffusion performance evaluation of the asphalt regenerating agent and the application method of the testing device. The testing device comprises a dissolving barrel, a sample bearing disc, a collection device, a liquid inlet pipe and a liquid outlet pipe. The testing method comprises the following steps: firstly, carrying out standing treatment on an asphalt test sample added with the regenerating agent; weighing the asphalt test sample and measuring the height of a test sample; adding trichloroethylene and carrying out asphalt washing; repeating a washing process for a plurality of times and measuring four components of solid-phase matters of a discharged liquid; calculating the relative content of the regenerating agent; and obtaining a diffusion rate of the regenerating agent through diffusion depth. According to the asphalt regenerating agent diffusion test device and the testing method, by using the property that the solubility of the trichloroethylene to asphalt, the asphalt test sample treated by the regenerating agent is gradually dissolved by using a layered dissolving method; and the diffusion properties of the regenerating agent are analyzed according to a component analysis result of the dissolved solution.

Description

technical field

[0001] The invention relates to a test device for evaluating the diffusion performance of an asphalt regenerant and an application method thereof. Background technique

[0002] The large-scale construction of my country's highways dates back to the mid-1980s. After more than 30 years of construction, by 2015, the total mileage of my country's highways reached more than 4.5 million kilometers, of which 108,000 kilometers were expressways, 80% of which were asphalt concrete. pavement. Up to now, a considerable number of asphalt pavements have reached the end of their service life and are facing large-scale maintenance and even reconstruction. In addition, with the continuous development of my country's transportation industry, the rapid growth of traffic volume and vehicle load has caused the newly-built roads to be damaged to a certain extent in a short period of time, and necessary maintenance work is urgently needed to prolong the service life of the roads. ...

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