乳化再生废旧水泥稳定碎石击实效果试验分析
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摘要
利用乳化沥青对废旧水泥稳定碎石进行再生,有利于节约建设资源,鉴于干密度和含水量是乳化再生废旧水泥稳定碎石(ER-OCSM)重要的控制指标,通过设计试验方案,针对不同水泥、乳化沥青含量的ER-OCSM混合料进行了标准击实试验,测试并分析了水泥、乳化沥青对ER-OCSM击实效果的影响规律,以极重、特重交通条件下高等级公路基层7d无侧限抗压强度要求为控制标准,最终分析确定了合理的乳化沥青含量,为ER-OCSM路用性能的进一步研究和应用工作奠定基础.
Using emulsified asphalt to regenerate old cement stabilized macadam is beneficial to saving construction resources.Considering that dry density and moisture content are the important control indexes of emulsified regeneration old cement stabilized macadam(ER-OCSM),through designing test scheme,the ER-OCSM mixtures with different cement and emulsified asphalt contents are standard struck.The effect of cement and emulsified asphalt on compacting effect of ER-OCSM is tested and analyzed.The unconfined compressive strength requirement of high-grade highway base for 7 days under extremely heavy and extra heavy traffic conditions is taken as the control standard.The reasonable emulsified asphalt content is finally determined,which will be helpful for further research and application of ER-OCSM pavement performance.
Using emulsified asphalt to regenerate old cement stabilized macadam is beneficial to saving construction resources.Considering that dry density and moisture content are the important control indexes of emulsified regeneration old cement stabilized macadam(ER-OCSM),through designing test scheme,the ER-OCSM mixtures with different cement and emulsified asphalt contents are standard struck.The effect of cement and emulsified asphalt on compacting effect of ER-OCSM is tested and analyzed.The unconfined compressive strength requirement of high-grade highway base for 7 days under extremely heavy and extra heavy traffic conditions is taken as the control standard.The reasonable emulsified asphalt content is finally determined,which will be helpful for further research and application of ER-OCSM pavement performance.
引文
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[2]李明杰.水泥稳定碎石强度影响因素的试验研究[J].公路交通科技,2010,27(4):6~11
[3]黄琴龙,古小明,杨壮,等.乳化沥青水泥稳定碎石的强度特性及影响因素[J].华东交通大学学报,2017,34(2):54~59
[4]贾克聪.乳化沥青对水泥稳定碎石强度特性及力学性能的影响[J].公路工程,2015,40(3):213~217
[5]王峰,熊永松,冯珀楠,等.骨架密实型水泥稳定碎石集料级配设计方法综述[J].建材技术与应用,2016(6):1~3
[6]中华人民共和国交通运输部.JTGE51-2009公路工程无机结合料稳定材料试验规程[S].北京:人民交通出版社
[7]米建华.击实试验中最大干密度和最优含水率因素分析[J].河南水利与南水北调,2011(20):121~122
[8]孙家瑛,蒋华钦,黄科.再生集料特性及对水泥稳定碎石性能的影响[J].中外公路,2008(2):158~161
[9]于新,杜银飞.考虑集料吸水率的水泥稳定碎石最大干密度及最佳含水量理论计算方法[J].公路交通科技,2012,29(3):17~21
[10]JTGD50-2017,公路沥青路面设计规范[S]
[2]李明杰.水泥稳定碎石强度影响因素的试验研究[J].公路交通科技,2010,27(4):6~11
[3]黄琴龙,古小明,杨壮,等.乳化沥青水泥稳定碎石的强度特性及影响因素[J].华东交通大学学报,2017,34(2):54~59
[4]贾克聪.乳化沥青对水泥稳定碎石强度特性及力学性能的影响[J].公路工程,2015,40(3):213~217
[5]王峰,熊永松,冯珀楠,等.骨架密实型水泥稳定碎石集料级配设计方法综述[J].建材技术与应用,2016(6):1~3
[6]中华人民共和国交通运输部.JTGE51-2009公路工程无机结合料稳定材料试验规程[S].北京:人民交通出版社
[7]米建华.击实试验中最大干密度和最优含水率因素分析[J].河南水利与南水北调,2011(20):121~122
[8]孙家瑛,蒋华钦,黄科.再生集料特性及对水泥稳定碎石性能的影响[J].中外公路,2008(2):158~161
[9]于新,杜银飞.考虑集料吸水率的水泥稳定碎石最大干密度及最佳含水量理论计算方法[J].公路交通科技,2012,29(3):17~21
[10]JTGD50-2017,公路沥青路面设计规范[S]