[1]王宏畅,葛辉,周明刚.基于常水头渗透试验的PAC排水和抗堵塞能力[J].东南大学学报(自然科学版),2016,46(1):209-214.[doi:10.3969/j.issn.1001-0505.2016.01.034]
 Wang Hongchang,Ge Hui,Zhou Minggang.Drain and anti-clogging ability of porous asphalt concrete based on constant head permeability experiment[J].Journal of Southeast University (Natural Science Edition),2016,46(1):209-214.[doi:10.3969/j.issn.1001-0505.2016.01.034]
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基于常水头渗透试验的PAC排水和抗堵塞能力()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第1期
页码:
209-214
栏目:
交通运输工程
出版日期:
2016-01-20

文章信息/Info

Title:
Drain and anti-clogging ability of porous asphalt concrete based on constant head permeability experiment
作者:
王宏畅12葛辉1周明刚1
1南京林业大学土木工程学院, 南京 210037; 2京都大学大学院工学研究科, 日本京都 615-8540
Author(s):
Wang Hongchang12 Ge Hui1 Zhou Minggang1
1School of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China
2Graduate School of Engineering, Kyoto University, Kyoto 615-8540, Japan
关键词:
道路工程 多空隙沥青混合料 空隙率 最大粒径 渗透系数 堵塞试验
Keywords:
road engineering porous asphalts concrete porosity maximum size of aggregate permeability coefficient clogging test
分类号:
U416.217
DOI:
10.3969/j.issn.1001-0505.2016.01.034
摘要:
为研究多空隙沥青路面的排水堵塞行为特性,通过自制常水头渗透测试装置,模拟多空隙沥青混合料(PAC)的循环堵塞试验,选用具有一定级配的细集料作为堵塞剂,测试其渗透系数.研究空隙率、最大公称粒径、级配类型等变化对PAC的排水及抗堵塞能力的影响规律.结果表明:PAC空隙率越大,其排水能力越强,抗堵塞的能力也越强;PAC的最大粒径变化对其排水能力没有明显的影响,但最大公称粒径较大的PAC试件抗堵塞的效果更好;与细型级配相比,粗型级配PAC的排水及抗堵塞能力更强;多孔沥青混合料PAC-13发生堵塞的位置集中在试件最上部的40 mm内,粒径为0.15~2.36 mm的颗粒则是造成混合料空隙堵塞的关键.
Abstract:
In order to clarify the drain and clogging behaviors of porous asphalts pavement, permeability coefficients were tested by using asphalt mixture homemade permeability testing device to simulate multi-cycle drainage clogging experiment of porous asphalt concrete(PAC), and the fine aggregate with certain gradation was chosen as a plugging agent. The influences of asphalt mixture design parameters such as the porosity, the normal maximum sizes of the aggregate, grading on the drain ability and anti-clogging ability of PAC were researched. The experimental results indicate that the porosity has an obvious influence on PAC drain ability and anti-clogging ability. The normal maximum size of the aggregate has an obvious influence on PAC anti-clogging ability, but no obvious influence on the drain ability. PAC with the coarser graduation has a better performance on drain ability and anti-clogging ability. Asphalt type changes a little on PAC ability of drain and anti-clogging ability. The location of blocking occurred is concentrated on the top 40 mm of PAC-13 specimen, fine particles with sizes of about 0.15 to 2.36 mm are the key particle size causing the clogging in the PAC-13 specimen.

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备注/Memo

备注/Memo:
收稿日期: 2015-07-23.
作者简介: 王宏畅(1975—),男,博士,副教授,seuwhc@126.com.
基金项目: 江苏高校优势学科建设工程资助项目、江苏省高校优秀中青年教师和校长境外研修计划资助项目、江苏省自然科学基金资助项目(BK2010568)、住房和城乡建设部科技研究计划资助项目(2011-K5-17).
引用本文: 王宏畅,葛辉,周明刚.基于常水头渗透试验的PAC排水和抗堵塞能力[J].东南大学学报(自然科学版),2016,46(1):209-214. DOI:10.3969/j.issn.1001-0505.2016.01.034.
更新日期/Last Update: 2016-01-20