石灰岩沥青混合料抗滑性能衰变特性研究
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摘要
为了了解石灰岩沥青混合料抗滑性能衰变特性的影响因素,使用自行开发的室内加速磨耗模拟装置,针对AC-13及SMA-13混合料,研究了混合料类型和集料特性等因素对混合料抗滑衰变特性的影响。试验结果表明,随着磨耗圈数的增加,AC-13混合料的摆值持续降低,SMA-13混合料则先升后降;增大级配中粒径大于2.36mm集料的含量,有利于改善AC-13及SMA-13混合料的抗滑衰变特性,AC-13混合料的抗滑衰变特性与贝雷法级配参数之间有着良好的线性关系;集料的磨光值、洛杉矶磨耗损失和压碎值对两种混合料的抗滑衰变特性均有显著影响,且影响程度依次降低;粗集料针片状含量与混合料的抗滑衰变特性之间为明显的负相关关系,当集料粒形接近球体或立方体时混合料的抗滑衰减速率减缓。
In order to know the influence factors of anti-sliding deterioration of the limestone asphalt mixture,the effect of changing the mixture type and the characteristics of coarse aggregates on the anti-sliding deterioration of the AC-13 and SMA-13 mixture were studied by using a self-developed accelerated wearing simulation device.The results showed:as the wearing rates increased,the swing value of the AC-13 mixture decreased sustainedly while the SMA-13 mixture rose first then fall.Increasing the content of the aggregate bigger than 2.36 mm in gradation helped improving the anti-sliding deterioration of the AC-13 and SMA-13 mixture.The anti-sliding deterioration of the AC-13 had a good linear relationship with its Bailey method gradation parameters.The Losangeles abrasion value,polished value and crushing value of the aggregate all had significant effect on the anti-sliding deterioration of AC-13 and SMA-13 mixture.The influence degree decreased in turn.The content of needle particle and slice particle had a significantly negative correlation with the anti-sliding deterioration of the mixture.When the sizes of aggregate were close to the sphere or cube,the rate of anti-sliding deterioration was slower.
In order to know the influence factors of anti-sliding deterioration of the limestone asphalt mixture,the effect of changing the mixture type and the characteristics of coarse aggregates on the anti-sliding deterioration of the AC-13 and SMA-13 mixture were studied by using a self-developed accelerated wearing simulation device.The results showed:as the wearing rates increased,the swing value of the AC-13 mixture decreased sustainedly while the SMA-13 mixture rose first then fall.Increasing the content of the aggregate bigger than 2.36 mm in gradation helped improving the anti-sliding deterioration of the AC-13 and SMA-13 mixture.The anti-sliding deterioration of the AC-13 had a good linear relationship with its Bailey method gradation parameters.The Losangeles abrasion value,polished value and crushing value of the aggregate all had significant effect on the anti-sliding deterioration of AC-13 and SMA-13 mixture.The influence degree decreased in turn.The content of needle particle and slice particle had a significantly negative correlation with the anti-sliding deterioration of the mixture.When the sizes of aggregate were close to the sphere or cube,the rate of anti-sliding deterioration was slower.
引文
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19 Vavrik W,Pine W,Carpenter S.Aggregate blending for asphalt mix design:Bailey method[J].Transportation Research Record Journal of the Transportation Research Board,2002,1789(1):146.
20 Roohi Sefidmazgi Nima.Hot mix asphalt design to optimize construction and rutting performance properties[D].Wisconsin:The University of Wisconsin-Madison,2014.
21 冯新军,郝培文.密级配沥青稳定碎石基层混合料级配设计方法[J].中国公路学报,2009(4):33.
2 Smith K L,Titus-Gloveret,et al.Guide for pavement friction[M].Washington D C:National Cooperative Highway Research Program,2009.
3 Dewey George R,Robords Alan C,Armour Brian T,et al.Aggregate wear and pavement friction[R].Washington D C,2001.
4 王毅,岳光华,李维.石灰岩矿物成分对其集料磨光值的灰色关联分析[J].江苏大学学报(自然科学版),2015(3):353.
5 徐小华.石灰岩在高速公路沥青路面抗滑表层中的运用研究[D].重庆:重庆交通大学,2010.
6 陈飞.高速公路沥青路面石灰岩集料表层应用技术研究[D].长沙:长沙理工大学,2013.
7 ASTM-E660-1990(2015).Accelerated polishing of aggregates or pavement surfaces using a small-wheel,circular track polishing machinel[S].
8 Liang R Y.Continuing investigation of polishing and friction characteristics of limestone aggregate in Ohio[R].2009.
9 Do M T,Tang Z,Kane M,et al.Pavement polishing—Development of a dedicated laboratory test and its correlation with road results[J].Wear,2007,263(1-6):36.
10 黄云涌,邵腊庚,刘朝晖.沥青路面抗滑试验研究[J].公路交通科技,2002(3):5.
11 赵战利.基于分形方法的沥青路面抗滑技术研究[D].西安:长安大学,2005.
12 谭巍,禤炜安.沥青混合料抗滑性能衰减规律试验研究[J].重庆交通大学学报(自然科学版),2015(6):53.
13 张小瑞.基于集料性质的沥青混合料磨光特性研究[D].哈尔滨:哈尔滨工业大学,2013.
14 邵申申.基于轮胎与路面接触的沥青混合料抗滑性能评价研究[D].广州:华南理工大学,2016.
15 邱志雄.基于宏观轮廓的沥青路面抗滑性能试验研究[D].广州:华南理工大学,2014.
16 Mullen W G,Whitfield J K,Matlock T L.Implementation for use of variable speed friction tester and small wheel circular track wear and polishing machine for pavement skid resistance,PartsⅠ,Ⅱ,Ⅲ[R].North Carolina State University,1977.
17 Han Dingding,Wei Lianyu,Zhang Jinxi.Experimental study on performance of asphalt mixture designed by different method[J].Procedia Engineering,2016,137:407.
18 李天祥.沥青路面抗滑性能衰减试验研究[D].西安:长安大学,2009.
19 Vavrik W,Pine W,Carpenter S.Aggregate blending for asphalt mix design:Bailey method[J].Transportation Research Record Journal of the Transportation Research Board,2002,1789(1):146.
20 Roohi Sefidmazgi Nima.Hot mix asphalt design to optimize construction and rutting performance properties[D].Wisconsin:The University of Wisconsin-Madison,2014.
21 冯新军,郝培文.密级配沥青稳定碎石基层混合料级配设计方法[J].中国公路学报,2009(4):33.