Experiment on cold regenerated material of old aslphal pavement

The experimental data is provides for designing and construction through a series of indoor test, studing the different influence on compressive strength, elastic modulus, cleavage strength of cold regenerated materials of asphalt pavement caused by the differrent factors such as old aggregate gradation, age and additive and so on. And then, the systematic field test to the test sectionis is carried on to estimate the scene material´s performance. Through the experiments, the relationship is known that the material performance enhanced unceasingly with age and it enhanced obviously with reasonable aggregate gradation. Moreover, the material performance may meet the requirements if it is constructed correctly according to the request.