东南大学学报（自然科学版）Issue(1)：209-214,6.DOI:10.3969/j.issn.1001-0505.2016.01.034
基于常水头渗透试验的 PAC 排水和抗堵塞能力
Drain and anti-clogging ability of porous asphalt concrete based on constant head permeability experiment
摘要
Abstract
In order to clarify the drain and clogging behaviors of porous asphalts pavement, permea-bility coefficients were tested by using asphalt mixture homemade permeability testing device to sim-ulate multi-cycle drainage clogging experiment of porous asphalt concrete ( PAC) , and the fine ag-gregate with certain gradation was chosen as a plugging agent.The influences of asphalt mixture de-sign 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 obvi-ous 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-clog-ging ability.The location of blocking occurred is concentrated on the top 40 mm of PAC-13 speci-men, fine particles with sizes of about 0.15 to 2.36 mm are the key particle size causing the clog-ging in the PAC-13 specimen.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Key words
road engineering/porous asphalts concrete/porosity/maximum size of aggregate/per-meability coefficient/clogging test分类
交通工程引用本文复制引用
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,(1):209-214,6.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）． （）
