摘要
级配碎石基层可有效地减缓路面的反射裂缝,同时有利于路面结构排水,从而延长了路面使用寿命。通过室内试验和试验路铺筑,对级配碎石基层的材料设计进行了探讨。提出了嵌挤骨架型级配碎石基层的材料要求、级配设计方法、级配范围及抗压回弹模量建议值。
The grading macadam base can effectively slow down the reflection crack of pavement, simultane- ously is favourable to pavement drainage, so would prolong service lefe of pavement, the paper does an approach to design of materials for grading macadam base by means of lab test and paving of experiment road. It yet presents the requirements for materials of built - in skeleton - type grading macadam base, the method for grading design, the grading range as well as the recommendation value of compression modulus of resilience. In 3 years of opening to traffic on experiment road, the road usage performance has been kept fine. Application of grading macadam base in building of freway possesses good prospect.
出处
《北方交通》
2008年第5期59-61,共3页
Northern Communications
关键词
级配碎石
配合比设计
高速公路
Grading macadam
Design of proportioning
Freeway.
