| 沥青混合料渗水系数的研究 |
| |
| 引用本文： | 陈景,孙澎涛,李福普,沈金安.沥青混合料渗水系数的研究[J].公路交通科技,2006,23(1):5-8. |
| |
| 作者姓名： | 陈景 孙澎涛 李福普 沈金安 |
| |
| 作者单位： | 1. 交通部公路科学研究院,北京,100088
2. 洛阳市县乡公路管理处,河南,洛阳,471002 |
| |
| 基金项目： | 交通部西部交通建设科技项目(200131822362) |
| |
| 摘 要： | 沥青混合料的渗水是导致沥青路面早期损坏的主要原因之一,而原来的沥青混合料设计方法中并没有渗水系数的要求。通过AC和SMA沥青混合料的室内渗水研究,探讨了沥青混合料的渗水理论。指出达西定律可以用于研究沥青混合料的渗水。对于密实型的沥青混合料,适用的渗水试验是变水头渗水仪。文章采用了改进的渗水仪,研究了常用的AC和SMA沥青混合料的渗水系数和空隙率之间的关系,分析了渗水系数的变化特性,提出了在配合比设计阶段检验用的沥青混合料渗水系数建议指标。
|
| 关 键 词： | 沥青混合料 渗水系数 |
| 文章编号： | 1002-0268(2006)01-0005-04 |
| 收稿时间： | 2004-07-06 |
| 修稿时间： | 2004年7月6日 |
Study on Permeability Coefficient of Asphalt Mixture |
| |
| CHEN Jing,SUN Peng-tao,LI Fu-pu,SHEN Jin-an.Study on Permeability Coefficient of Asphalt Mixture[J].Journal of Highway and Transportation Research and Development,2006,23(1):5-8. |
| |
| Authors: | CHEN Jing SUN Peng-tao LI Fu-pu SHEN Jin-an |
| |
| Institution: | 1. Research Institute of Highway of the Ministry of Communications, Beijing 100088, China; 2.Luoyang County and Rural Road Administration Bureau, Henan Luoyang 471002, China |
| |
| Abstract: | Premature damage can result from excessive permeability of asphalt mixture.There was no requirement for permeability during asphalt mixture design in the early specification.In this paper,theory of permeability of mixture is discussed.Darcy's law is found applicable to asphalt mixture and the falling head test is suitable for dense asphalt mixture.The relation between permeability and air voids of AC and SMA is presented in this paper through laboratory research.A modified permeameter is introduced.Characteristics of permeability coefficient of asphalt mixture are also analyzed.A standard of coefficient of permeability suggested to be adopted during asphalt mixture design is submitted. |
| |
| Keywords: | Asphalt mixture Permeability |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
