基于Superpave和马歇尔法的最佳油石比对比分析
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摘要
为确定科学合理的最佳油石比以改善沥青混合料路用性能,分别采用Superpave和马歇尔设计方法成型沥青混合料试件,通过车辙试验、低温弯曲试验、浸水马歇尔试验对比分析了两种方法下试件的高温性能、低温性能和水稳定性,推荐了路用性能较好的设计方法,为沥青混合料配合比设计体系完善提供了一定参考。结果表明:采用Superpave设计法较马歇尔设计法成型的试件,高温性能与低温性能均有所提高,且两者水稳定性相差不大;因此Superpave设计方法更为科学合理。
In order to ensure the scientific and reasonable optimum asphalt-aggregate ratio for improving the pavement performance of asphalt mixture, the asphalt mixture test samples molded by Superpave Method and Marshall Method were employed to comparatively analyze the high-temperature performance, low-temperature performance and water stability by rutting test, low-temperature bend test and immersion Marshall test. This paper recommended the better design method for pavement performance, which provided certain reference for perfecting the asphalt mixture proportion design system. The results showed that compared with the test samples molded by Marshall Method, both the high-temperature performance and low-temperature performance of the test samples molded by Superpave Method were improved with small difference in water stability. Therefore, Superpave Method is more scientific and reasonable.
In order to ensure the scientific and reasonable optimum asphalt-aggregate ratio for improving the pavement performance of asphalt mixture, the asphalt mixture test samples molded by Superpave Method and Marshall Method were employed to comparatively analyze the high-temperature performance, low-temperature performance and water stability by rutting test, low-temperature bend test and immersion Marshall test. This paper recommended the better design method for pavement performance, which provided certain reference for perfecting the asphalt mixture proportion design system. The results showed that compared with the test samples molded by Marshall Method, both the high-temperature performance and low-temperature performance of the test samples molded by Superpave Method were improved with small difference in water stability. Therefore, Superpave Method is more scientific and reasonable.
引文
[1]周杰,王曦林,郑存艳,等.沥青混合料Superpave与马歇尔设计方法的比较[J].武汉理工大学学报,2007,29(9):68-70.
[2]Ma L J,Zhang J Y,Li Z.The Road-Test of High Performance Asphalt Mixture with Superpave[J].Applied Mechanics&Materials,2013,361-363:1576-1579.
[3]胡建荣,张倩,黄杰.沥青混合料Superpave与马歇尔设计方法的对比[J].筑路机械与施工机械化,2008,25(7):35-36.
[4]吴传海.矿料级配对沥青混合料体积指标的影响[J].筑路机械与施工机械化,2011(11):55-58.
[5]谭忆秋,姚李,张锐,等.级配对密级配沥青混合料体积指标的影响[J].中外公路,2012,32(1):213-217.
[6]侯建新,周宏云.沥青混合料最大理论密度确定方法和实际工程应用[J].公路工程,2005,30(3):113-116.
[7]王昌衡,龚平.Superpave与马歇尔法沥青混合料设计方法对比研究[J].中外公路,2005,25(2):115-117.
[8]宋效江.Superpave与马歇尔配合比设计方法的比较[J].交通世界,2011(5):142-143.
[9]郑鑫.基于Superpave和马歇尔方法的沥青混合料优化设计研究[D].西安:长安大学,2008.
[10]郝培文,徐金枝,周怀治.应用贝雷法进行级配组成设计的关键技术[J].长安大学学报(自然科学版),2004,24(6):1-6.
[11]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,2009,22(4):33-38.
[12]张方方,张捷,韩光,等.Superpave与马歇尔两种沥青混合料设计方法探讨[J].中外公路,2008,28(6):2-5.
[2]Ma L J,Zhang J Y,Li Z.The Road-Test of High Performance Asphalt Mixture with Superpave[J].Applied Mechanics&Materials,2013,361-363:1576-1579.
[3]胡建荣,张倩,黄杰.沥青混合料Superpave与马歇尔设计方法的对比[J].筑路机械与施工机械化,2008,25(7):35-36.
[4]吴传海.矿料级配对沥青混合料体积指标的影响[J].筑路机械与施工机械化,2011(11):55-58.
[5]谭忆秋,姚李,张锐,等.级配对密级配沥青混合料体积指标的影响[J].中外公路,2012,32(1):213-217.
[6]侯建新,周宏云.沥青混合料最大理论密度确定方法和实际工程应用[J].公路工程,2005,30(3):113-116.
[7]王昌衡,龚平.Superpave与马歇尔法沥青混合料设计方法对比研究[J].中外公路,2005,25(2):115-117.
[8]宋效江.Superpave与马歇尔配合比设计方法的比较[J].交通世界,2011(5):142-143.
[9]郑鑫.基于Superpave和马歇尔方法的沥青混合料优化设计研究[D].西安:长安大学,2008.
[10]郝培文,徐金枝,周怀治.应用贝雷法进行级配组成设计的关键技术[J].长安大学学报(自然科学版),2004,24(6):1-6.
[11]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,2009,22(4):33-38.
[12]张方方,张捷,韩光,等.Superpave与马歇尔两种沥青混合料设计方法探讨[J].中外公路,2008,28(6):2-5.