Asphalt-treated permedble base(ATPB)is a kind of pavement internal draining water structure.

开级配沥青稳定碎石基层（ATPB）是一种路面内部排水结构。

youdao

As a part of pavement structure, the mechanical behavior of asphalt treated permeable base (ATPB) affects the performance of roadway directly.

沥青稳定碎石排水层作为路面结构的一部分，其力学性能直接影响整个路面的使用性能。

youdao

Based on the experiment results on three kinds of open graded ATPB, it is concluded that asphalt content should be above 2.5% and porosity should be above 18%.

本文经对三种开级配的沥青稳定碎石进行了试验研究，得出ATPB的沥青用量应在2.5%以上，空隙率在18%以上的结论。

youdao