摘要
排水性沥青混凝土进行城市道路建设的过程较为简单,建设成本较低,被广泛应用于城市道路建设过程中,为分析排水性沥青混凝土在城市道路中的应用现状,对排水性沥青混凝土的铺装结构和边缘排水进行设计,实现对排水性沥青混凝土及集料的选取,保证排水性沥青混凝土在道路建设中的应用效果。根据不同国家排水性沥青混凝土路面的初始空隙率要求,以及降雨强度、构造深度与排水性沥青混凝土路面空隙率之间关系,计算排水性沥青混凝土路面的空隙率,确定选取的排水性沥青混凝土及集料的配比方式,完成排水性沥青混凝土在城市道路中的应用分析。实验结果表明,当油石比高于4. 6%时,排水性沥青混凝土具有动稳定度,且动稳定度随油石比的增加而增加,TPS参量增加能够提高排水性沥青混凝土路面的硬度,使排水性沥青混凝土的动稳定度和破坏应变增加,弯曲劲度模量降低。
The process of drainage asphalt concrete of city road construction is simple,the construction cost is low,is widely used in the process of road construction in the city,for the application of porous asphalt concrete in the city road,pavement structure and edge drainage on drainage asphalt concrete design,realization of drainage asphalt concrete and set the material selection,ensure the application effect of drainage asphalt concrete in road construction.According to the requirements of the initial voidage of the drainage asphalt concrete pavement in different countries,and the relationship between rainfall intensity,structural depth and the voidage of the drainage asphalt concrete pavement,the voidage of the drainage asphalt concrete pavement is calculated to determine the selected drainage asphalt concrete and The ratio of aggregates was used to analyze the application of drainage asphalt concrete in urban roads.The experimental results show that when the aggregate ratio is higher than 4.6%,porous asphalt concrete has dynamic stability,dynamic stability and density increase with the increase of asphalt aggregate ratio,TPS parameter increases can improve the hardness of porous asphalt concrete pavement,the asphalt concrete dynamic stability and failure strain increases,reduced bending stiffness modulus.
作者
马海涛
穆庄庄
Ma Haitao;Mu Zhuangzhuang(China Construction Seventh ENGRG Bureau Installation ENGRG Co.,Ltd,Zhengzhou450000,China;Civil Engineering College,Henan Polytechnic University,Jiaozuo454000,China)
出处
《科技通报》
2019年第3期196-200,共5页
Bulletin of Science and Technology
作者简介
马海涛(1984-),男,河南洛阳人,工程师,研究方向:城市道路。
