According to the test data of Changping road, it offers the limitation about porosity of the asphaltsurfacecourse on expressway in frigid areas.
以长平高速公路试验数据为依据，提出了寒冷地区高速公路沥青表层的容许空隙率的界限。
2
This paper explains the significance on the application of gabbro-diabase through aptitude test and experiment of gabbro-diabase in asphaltsurfacecourse of the high-type highway.
本文通过将高家窑辉长辉绿岩应用于高等级公路路面材料的实践，阐述开发此类岩石的资源和经济意义。
3
Surfacecourse thickness and base modulus of asphalt concrete pavements are important parameters in pavement structure design.