旋转压实法进行大粒径透水性沥青混合料配合比设计

Mix Design of Large Stone Porous Asphalt Mixture by Rotation Compaction Method

基于旋转压实方法成型大粒径透水性沥青混合料试件,通过空隙率、沥青膜厚、析漏值、飞散损失等指标的试验测定,综合判定最佳的矿料级配和最佳沥青含量,通过该法确定的大粒径透水性沥青混合料配合比具有良好的高温稳定性和排水性能。

Specimens of large stone porous asphalt mixture were made by gyratory compactor. Performance indexes such as percent air voids,asphalt film thickness,drainage value and scattering loss were tested to determine the optimal mineral aggregate gradation as well as asphalt content. Large stone porous asphalt mixture designed by this way shows favorable high temperature stability and good drainage performance.