摘要
为充分发挥级配碎石基层作为沥青路面结构上基层能够有效缓解下部半刚性基层反射裂缝及水损害等优势,同时提高级配碎石层抗剪强度,减少其抗剪强度弱、易出现塑性变形的风险,将从级配碎石原材料、级配范围以及添加聚丙烯纤维3个方面进行研究,以期综合提高级配碎石基层的路用性能。
In order to give full play to the advantages of Graded Macadam Base as the base of asphalt pavement structure,which can effectively alleviate the reflection cracks and water damage of the lower semi-rigid base,and at the same time,to improve the shear strength of macadam layer,so as to reduce its weakness in shear strength and the vulnerability to plastic deformation.In order to comprehensively improve the road performance of Graded Macadam base.In this paper,the raw materials,gradation range and the addition of polypropylene fiber for Graded Macadam are studied.
作者
陈柯
赵振国
CHEN Ke;ZHAO Zhenguo(Heilongjiang Provincial Highway Survey and Design Institute,Harbin,Heilongjiang 150080,China)
出处
《公路工程》
2021年第1期232-238,共7页
Highway Engineering
基金
黑龙江省交通运输厅重点科研项目(HJK2016B016)。
关键词
道路工程
级配碎石
级配范围
纤维
抗剪强度
road engineering
graded gravel
graded range
fiber
shear strength
