期刊论文

Performance experiments of carbon fiber-reinforced conductive SBS modified asphalt mixture

中文

长沙理工大学学报(自然科学版)

1672-9331

2014

1

10-15+23

10.3969/j.issn.1672-9331.2014.01.002

国家自然科学基金资助项目（51078045）；

本校为第一机构

为了分析导电沥青混凝土的路用性能和融冰效果,将短切聚丙烯腈基碳纤维掺入 SBS改性沥青混合料 AC-13 C中,制备成碳纤维导电改性沥青混合料。选取5种碳纤维掺量分别进行了配合比设计、路用性能和模拟融冰等室内试验。研究结果表明,随着碳纤维掺量的增加,SBS改性沥青混合料的最佳油石比呈线性增加,动稳定度、浸水马歇尔残留稳定度和冻融劈裂强度比呈抛物线关系变化,低温弯拉强度和破坏应变呈“S”形递增关系,而劲度模量呈“Z”形递减关系。说明在 SBS改性沥青混合料中掺入适量的碳纤维,因碳纤维的桥接、加筋和增韧作用,可有效提高 SBS改性沥青混合料的高温抗车辙、低温抗开裂和抗水损等路用性能,...

In order to analyze pavement performances and ice-melting effects of conductive asphalt concrete,the chopped polyacrylonitrile-based carbon fibers were incorporated into SBS modified asphalt mixture AC-13C to prepare the carbon fiber-reinforced conductive modified asphalt mixtures.Five kinds of carbon fiber contents were selected respectively to conduct the laboratory experiments such as mix ratio design,pavement performances and simulated ice-melting etc.The results show,with the increase of carbon fiber content,the optimum asphalt-aggregate r...