Study on Strain Test Law of the Semi-rigid base Asphalt Pavement

Abstract

In order to grasp the similarities and differences in the experimental strain law of different types of semi-rigid base asphalt pavement, based on the Yunluo highway durability test pavement, the strain monitoring system, temperature monitoring system and humidity monitoring system of the full-scale pavement were constructed, and corresponding test plans were formulated. Through the test scheme, the strain response laws of different structural layers of two asphalt pavements were obtained. Through the comparative analysis with the relevant theoretical analysis results, the rationality and credibility of the strain layout scheme and test scheme of the Yunluo durability test pavement were confirmed. Through the analysis of the measured strain data, it was verified that the graded crushed rock layer did have a decentralized effect on the load. At the same time, it was also confirmed that when the same pavement material was in different structural layers, its mechanical response under load was different.