北京PK10计划

目录
化学建材
北京PK10计划

玄武岩纤维掺量对可卷曲沥青路面路用性能的影

作者:代书凝1,呙润华1,2,高晓通1,代学灵3

关键字:玄武岩,纤维,掺量,对,可,卷曲,沥青,路面路,用,

 
(1.新疆大学 建筑与土木工程学院,新疆 乌鲁木齐  830046;
2.清华大学 土木水利学院,北京  100084;3.福建江夏学院,福建 福州  350108 )
摘要:以SBS改性沥青加10%岩沥青和15%橡胶粉为基料,分别掺加0、0.1%、0.3%、0.5%玄武岩纤维和适量玄武岩级配碎石配制成可卷曲沥青路面混合料,研究了玄武岩纤维掺量对沥青路面混合料路用性能的影响。结果表明,随着玄武岩纤维掺量由0、0.1%、0.3%、0.5%依次增加,沥青路面混合料的车辙试验动稳定度、低温弯曲破坏应变和浸水马歇尔残留稳定度先提高后降低,常温弯曲破坏应变逐渐增大。掺加适量玄武岩纤维能有效改善预制可卷曲沥青混合料的路用性能。
关键词:预制可卷曲沥青路面;路用性能;玄武岩纤维;复合改性沥青;岩沥青
中图分类号:TU528.42        文献标识码:A        文章编号:1001-702X(2019)04-0137-03
 
Study on the influence of basalt fiber content on the road performance of rollable pavement
DAI Shuning1,GUO Runhua1,2,GAO Xiaotong1,DAI Xueling3
(1.College of Architecture and Civil Engineering,Xinjiang University,Urumchi 830046,China;
2.School of Civil and Water Conservancy,Tsinghua University,Beijing 100084,China;
3。Fujian Jiangxia University,Fuzhou 350108,China)
Abstract:Add SBS modified asphalt with 10% rock asphalt and 15% rubber powder as base material, and mix 0,0.1%,0.3%,0.5% basalt fiber and appropriate basalt grade gravel to make asphalt flexible pavement mixture. The effect of basalt fiber content on road performance of pavement asphalt mixture was studied. The results show that with the increase of basalt fiber content by 0,0.1%,0.3%,0.5%,the rutting test dynamic stability,low temperature bending failure strain and water immersion Marshall residual stability of pavement asphalt mixture increase first and then decrease,normal temperature bending failure strain is gradually increased. Adding appropriate amount of basalt fiber can effectively improve the road performance of the prefabricated curable asphalt mixture.
Key words:prefabricated rollable asphalt pavement,pavement performance,basalt fiber,composite modified asphalt,rock asphalt

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