HPR增效剂对超薄罩面沥青混合料性能影响的研究  

Study on the Effect of HPR Synergist on the Performance of Ultra-thin Cover Surface Asphalt Mixture

作　　者：李高俊 李旭东 孙强 江照伟 李夏 LI Gaojun;LI Xudong;SUN Qiang;JIANG Zhaowei;LI Xia(School of Transportation Engineering,Shandong Jianzhu University,Jinan 250101;Anhui River Diversion and Huaihe Engineering Co.,Ltd.Hefei 230601;Shandong Institute of Transportation Science,Jinan 250100)

机构地区：[1]山东建筑大学交通工程学院,济南250101 [2]安徽省引江济淮工程有限责任公司,合肥230601 [3]山东省交通科学研究院,济南250100

出　　处：《石油沥青》2023年第3期9-13,共5页Petroleum Asphalt

摘　　要：为研究HPR新型复合增效剂对超薄罩面沥青混合料路用性能的影响,采用干法添加方式将其掺入SBS改性沥青超薄罩面混合料,对混合料高温性能、水稳定性、低温性能、疲劳性能开展对比试验研究。结果表明,掺加0.3%和0.6%的HPR增效剂后,混合料动稳定度分别提升10%和29%;车辙变形深度分别降低10%和40%;低温性能分别提升8%和25%;疲劳寿命分别提升11%和25%,该增效剂能够提升超薄罩面混合料路用性能,且添加量为0.6%时提升效果显著,能够满足工程需要。工程中可采用干法直投添加,应用简便易行。HPR增效剂对超薄罩面品质提升具有促进作用。In order to study the effect of HPRs new composite synergist on the road performance of ultra-thin cover asphalt mixture,it was incorporated into SBS modified asphalt ultra-thin cover surface mixture by dry addition method,and comparative experiments were carried out on the high temperature performance,water stability,low temperature performance and fatigue performance of the mixture.The results showed that when 0.3%and 0.6%HPR synergist was added,the dynamic stability of the mixture was increased by 10%and 29%,and the deformation depth of rutting was reduced by 10%and 40%,the low temperature perform ance was increased by 8%and 25%,and the fatigue life was increased by 11%and 25%,respectively.The performance of ultra-thin cover mixtures was improved by synergist,and the improvement effect was significant when the addition amount was 0.6%,and can meet the needs of the project.The dry method can be used in the project,and the application is simple and easy.HPR synergists promote the quality improvement of ultra-thin masks.

关 键 词：道路工程 超薄磨耗层 增效剂 路用性能 

分 类 号：U414[交通运输工程—道路与铁道工程]