Large stone porous asphalt mixes(LSPM)base is a kind of pavement internal draining water structure. It can promptly detain pavement interior water, and can effectively reduce the reflection crack.
大粒径透水性沥青混合料(LSPM)基层是一种路面内部排水结构,能及时排走滞留在路面内部的水分的基础上,能有效地减少反射裂缝的发生。
参考来源 - LSPM材料在基层抗冻耐久性上的应用·2,447,543篇论文数据，部分数据来源于NoteExpress
So it is important to research the reflection crack to this composite structure, and it is difficult too.
因此反射裂缝的研究一直是这种组合结构研究的重点和难点。
The reflection crack of the old road surface to the asphalt is one of the main reason for the road diseases under the traffic load.
在交通荷载的作用下，旧路面对沥青加铺层形成的反射裂缝是造成沥青路面病害的主要原因之一。
The base has bigger percent air voids and can promptly detain pavement interior water, and can effectively reduce the reflection crack.
这种基层具有较大的空隙率，能及时排走滞留在路面内部的水分，并能有效地减少反射裂缝的发生。
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