路面半刚性基层材料干缩测试仪的研制及试验方法

Development and Test Method of Dry Shrinkage Tester for Semi-rigid Base Material of Pavement

目前半刚性基层材料干缩特性测试方法在精度、可操作性及环境条件控制等方面都存在一些不足,为此,研制了能够模拟路面实际工作环境、自动化程度高、测试准确性好,且能实时采集数据的路面半刚性基层材料干缩测试仪,并提出了相关试验方法,进行了性能验证,可为评价半刚性基层材料的干缩特性提供依据。

At present,there are some shortcomings in some aspects like accuracy,operability and control of environmental conditions of test methods for dry shrinkage characteristics of semi-rigid base materials.Therefore,a kind of dry shrinkage tester for semi-rigid base material of pavement is developed,which can simulate the actual working environment of pavement,provide high degree of automation and good testing accuracy,and collect real-time data.The related test methods are put forward,and the performance verification is carried out,so as to provide basis for the evaluation on the dry shrinkage characteristics of semi-rigid base materials.