全再生沥青混合料路用性能研究
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摘要
针对再生沥青混合料旧料利用率偏低的问题,基于厂拌热再生技术,采用添加单级配新料调整再生沥青混合料的矿料级配方法,掺加高标号新沥青和再生剂来恢复旧料中的沥青性能;用马歇尔法对旧料掺量为80%的全再生AC-16C沥青混合料进行配合比设计,并通过车辙试验的动稳定度、小梁弯曲试验破坏时的最大弯拉应变、浸水马歇尔试验的残留稳定度、冻融劈裂强度试验的冻融劈裂强度比等指标研究其路用性能.研究结果表明:AC-16C全再生沥青混合料具有良好的高温稳定性、低温抗裂性和水稳定性能,能满足沥青路面使用要求.
In view of the low utilization rate of recycled asphalt mixture,based on the Hot Mix Plant Recycling Technology,the high-grade new reclaiming agent is added to the outspent asphalt mixture to restore the blacktop performance.Marshall Method is used to design the mix ratio of the fully recycled AC-16 Casphalt mixture with 80% of the old material content,and its performance was studied through the dynamic stability of the rutting test,the trabecular bending test,the maximum bending strain test,the residual stability of the water-immersed Marshall test,and the freeze-thaw splitting strength ratio test.The research results show that AC-16C fully recycled asphalt mixture can meet the requirements of blacktop with good stability in both high and low temperature and its water property is stable as well.
In view of the low utilization rate of recycled asphalt mixture,based on the Hot Mix Plant Recycling Technology,the high-grade new reclaiming agent is added to the outspent asphalt mixture to restore the blacktop performance.Marshall Method is used to design the mix ratio of the fully recycled AC-16 Casphalt mixture with 80% of the old material content,and its performance was studied through the dynamic stability of the rutting test,the trabecular bending test,the maximum bending strain test,the residual stability of the water-immersed Marshall test,and the freeze-thaw splitting strength ratio test.The research results show that AC-16C fully recycled asphalt mixture can meet the requirements of blacktop with good stability in both high and low temperature and its water property is stable as well.
引文
[1]任瑞波,扈少华.高RAP掺量的热再生沥青混合料设计及性能研究[J].石油沥青,2013,27(3):25-29.
[2]何兆益,成龙,陈先勇.厂拌热再生沥青混合料力学性能及应用研究[J].建筑材料学报,2016,19(5):871-875.
[3]JULIAN M B,ZHAN P Y.The mechanical properties of asphalt mixtures with recycled concrete aggregates[J].Construction and Building Materials,2010(24):230-235.
[4]吕伟民.沥青再生原理与再生剂的技术要求[J].石油沥青,2007,21(6):1-6.
[5]况栋梁,余剑英,蔡正文,等.再生剂对不同老化程度沥青再生性能的影响[J].公路,2011(5):153-157.
[6]周志刚,杨银培,张清平,等.再生剂对旧沥青的再生行为[J].交通运输工程学报,2011,11(6):10-16.
[7]查旭东,曾军,蔡诚秀.新沥青对再生沥青性能影响分析[J].交通科学与工程,2013,29(1):7-11.
[8]GARCIA A,SCHLANGEN E,VAN D V M,et al.Properties of capsules containing rejuvenators for their use in asphalt concrete[J].Journal of Wuhan University of Technology,2011(90):583-591.
[9]侯月军,周志刚,高及阳.不同再生剂对旧沥青性能的改善[J].交通科学与工程,2009,25(3):17-21.
[10]吴革森,李裕洪,司徒丽新.高掺量RAP厂拌热再生混合料配合比设计研究[J].公路,2014(10):251-254.
[11]熊巍,卢何.热再生沥青混合料的路用性能试验研究[J].公路,2006(10):191-194.
[12]耿九光,戴经梁,陈忠达.热再生沥青混合料低温抗裂性能全程评价[J].武汉理工大学学报(交通科学与工程版),2008,32(6):1029-1032.
[13]SHEN J,AMIRKHANIAN S,MILLER J A.Effects of rejuvenating agents on superpave mixtures containing reclaimed asphalt pavement[J].Journal of Materials in Civil Engineering,2007,19(5):376-384.
[14]张继森,吴超凡.再生沥青混合料RAP掺量对使用性能的影响[J].公路工程,2013,38(4):107-110.
[15]乔志勇,庄江涛.回收沥青混合料掺量对再生沥青混合料性能的影响[J].石油沥青,2013,27(3):19-20.
[16]查旭东,闵斌,宋微.RAP掺量对热再生沥青混合料性能影响分析[J].长沙理工大学学报(自然科学版),2013,10(4):1-8.
[2]何兆益,成龙,陈先勇.厂拌热再生沥青混合料力学性能及应用研究[J].建筑材料学报,2016,19(5):871-875.
[3]JULIAN M B,ZHAN P Y.The mechanical properties of asphalt mixtures with recycled concrete aggregates[J].Construction and Building Materials,2010(24):230-235.
[4]吕伟民.沥青再生原理与再生剂的技术要求[J].石油沥青,2007,21(6):1-6.
[5]况栋梁,余剑英,蔡正文,等.再生剂对不同老化程度沥青再生性能的影响[J].公路,2011(5):153-157.
[6]周志刚,杨银培,张清平,等.再生剂对旧沥青的再生行为[J].交通运输工程学报,2011,11(6):10-16.
[7]查旭东,曾军,蔡诚秀.新沥青对再生沥青性能影响分析[J].交通科学与工程,2013,29(1):7-11.
[8]GARCIA A,SCHLANGEN E,VAN D V M,et al.Properties of capsules containing rejuvenators for their use in asphalt concrete[J].Journal of Wuhan University of Technology,2011(90):583-591.
[9]侯月军,周志刚,高及阳.不同再生剂对旧沥青性能的改善[J].交通科学与工程,2009,25(3):17-21.
[10]吴革森,李裕洪,司徒丽新.高掺量RAP厂拌热再生混合料配合比设计研究[J].公路,2014(10):251-254.
[11]熊巍,卢何.热再生沥青混合料的路用性能试验研究[J].公路,2006(10):191-194.
[12]耿九光,戴经梁,陈忠达.热再生沥青混合料低温抗裂性能全程评价[J].武汉理工大学学报(交通科学与工程版),2008,32(6):1029-1032.
[13]SHEN J,AMIRKHANIAN S,MILLER J A.Effects of rejuvenating agents on superpave mixtures containing reclaimed asphalt pavement[J].Journal of Materials in Civil Engineering,2007,19(5):376-384.
[14]张继森,吴超凡.再生沥青混合料RAP掺量对使用性能的影响[J].公路工程,2013,38(4):107-110.
[15]乔志勇,庄江涛.回收沥青混合料掺量对再生沥青混合料性能的影响[J].石油沥青,2013,27(3):19-20.
[16]查旭东,闵斌,宋微.RAP掺量对热再生沥青混合料性能影响分析[J].长沙理工大学学报(自然科学版),2013,10(4):1-8.