不同级配复合改性沥青混合料路用性能
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摘要
为研究不同级配对复合改性沥青混合料路用性能的影响,在AC-13型连续级配、SMA-13型间断级配和半间断级配三种级配中以干拌法分别加入抗车辙剂/新型橡胶粉复合改性剂,并对不同级配和改性剂掺量下的沥青混合料进行了高温车辙试验、低温小梁弯曲试验、浸水马歇尔试验和冻融劈裂试验。试验结果表明:抗车辙剂和新型橡胶粉的加入能够显著改善沥青混合料的高低温性能和水稳定性能,在高温性能和水稳定性方面,半间断级配下掺入复合改性剂的沥青混合料性能提升最高、AC-13连续级配次之、SMA-13间断级配相对最差;在低温性能方面,SMA-13间断级配相对最好,但是半间断级配和AC-13连续级配与其相比相差很小。最后推荐半间断级配为最优级配,其最优改性剂掺量为0. 4%抗车辙剂/1. 5%新型橡胶粉。
For study the effect of aggregate gradation on the performance of composite asphalt mixture,anti-rutting/new rubber powder composite modifier were added to AC-13 continuous grading,SMA-13 discontinuous grading and semidiscontinuous grading,High temperature rutting test,low temperature trabecular bending test,immersion Marshall test and freeze thaw splitting test were carried out on asphalt mixture with differentgradation and modifier content. The results show that the addition of anti-rutting agent and new rubber powder can significantly improve the high and low temperature performance and water stability of asphalt mixture. As for high temperature performance and water stability,semi-discontinuous grading is the maximum,AC-13 continuous grading is the second,SMA-13 discontinuous grading is the minimum. In terms of low temperatureperformance,SMA-13 discontinuous grading is relatively best,halfinterrupted grading and AC-13 continuous grading second. Finally,the semi-discontinuous grade is recommended to be the optimal grade,and the optimal modifier content is 0. 4 % anti-rutting agent/1. 5 % anti-rutting agent.
For study the effect of aggregate gradation on the performance of composite asphalt mixture,anti-rutting/new rubber powder composite modifier were added to AC-13 continuous grading,SMA-13 discontinuous grading and semidiscontinuous grading,High temperature rutting test,low temperature trabecular bending test,immersion Marshall test and freeze thaw splitting test were carried out on asphalt mixture with differentgradation and modifier content. The results show that the addition of anti-rutting agent and new rubber powder can significantly improve the high and low temperature performance and water stability of asphalt mixture. As for high temperature performance and water stability,semi-discontinuous grading is the maximum,AC-13 continuous grading is the second,SMA-13 discontinuous grading is the minimum. In terms of low temperatureperformance,SMA-13 discontinuous grading is relatively best,halfinterrupted grading and AC-13 continuous grading second. Finally,the semi-discontinuous grade is recommended to be the optimal grade,and the optimal modifier content is 0. 4 % anti-rutting agent/1. 5 % anti-rutting agent.
引文
[1]孙国伟.抗车辙剂与SBS改性剂对沥青混合料路用性能试验研究[D].兰州理工大学,2014.
[2] LIU S. Analysis and application of relationships between low temperature rheological performance parameters of asphalt binders[J]. Construction and Building Materials,2010,24(4):471-478
[3]惠冰.抗车辙剂改性沥青混合料技术性能研究[D].长安大学,2009.
[4]游庆龙,郑南翔.废旧轮胎胶粉改性沥青胶浆高低温性能研究[J].广西大学学报(自然科学版),2013,38(1):80-85.
[5] YU J,ZENG X,WU S,et al. Preparation and properties of montmorillonite modified asphalts[J]. Materials Science and Engineering:A,2007,447(2):233-238.
[6]刘红瑛.废橡胶粉改性沥青混合料性能研究[J].公路,2012,(4):177-180.
[7]杨光,申爱琴,陈志国,等.季冻区橡胶粉与SBS复合改性沥青混合料性能及改性机理[J].长安大学学报(自然科学版),2015,35(6):6-15.
[8] FUZ,DANG Y,GUO B,et al. Laboratory investigation on the properties of asphalt mixtures modified with double-adding admixtures and sensitivity analysis[J]. Journal of Traffic&Transportation Engineering,2016,3(5):412-426.
[9]赵庆权.硅藻土与橡胶粉复合改性沥青混合料路用性能研究[J].公路工程,2014,39(6):76-81.
[10]彭浩,王福成,杨涛,等.矿料级配对沥青混合料路用性能影响的试验分析[J].公路工程,2013,38(2):36-39+64.
[11]傅珍,林萌蕾等.生物炭改性沥青的路用性能[J].广西大学学报(自然科学版),2017,42(4):1496-1504.
[12]金浩.抗车辙剂/新型橡胶粉复合改性沥青混合料技术性能研究[D].长安大学,2015.
[13]交通运输部公路科学研究院.公路工程沥青及沥青混合料试验规程[M].人民交通出版社,2011.
[14]肖新颜,杨泽清.有机蒙脱土/废胶粉复合改性沥青的性能[J].华南理工大学学报(自然科学版),2013,41(6):116-120.
[15]冯蕾,崔亚楠,李超.盐冻循环条件下胶粉改性沥青混合料的水稳定性能[J].建筑材料学报,2014,17(5):823-828.
[16]董瑞琨,戚昌鹏,郑凯军,等.高温裂解胶粉改性沥青的低温性能试验[J].中国公路学报,2017,30(10):32-38.
[2] LIU S. Analysis and application of relationships between low temperature rheological performance parameters of asphalt binders[J]. Construction and Building Materials,2010,24(4):471-478
[3]惠冰.抗车辙剂改性沥青混合料技术性能研究[D].长安大学,2009.
[4]游庆龙,郑南翔.废旧轮胎胶粉改性沥青胶浆高低温性能研究[J].广西大学学报(自然科学版),2013,38(1):80-85.
[5] YU J,ZENG X,WU S,et al. Preparation and properties of montmorillonite modified asphalts[J]. Materials Science and Engineering:A,2007,447(2):233-238.
[6]刘红瑛.废橡胶粉改性沥青混合料性能研究[J].公路,2012,(4):177-180.
[7]杨光,申爱琴,陈志国,等.季冻区橡胶粉与SBS复合改性沥青混合料性能及改性机理[J].长安大学学报(自然科学版),2015,35(6):6-15.
[8] FUZ,DANG Y,GUO B,et al. Laboratory investigation on the properties of asphalt mixtures modified with double-adding admixtures and sensitivity analysis[J]. Journal of Traffic&Transportation Engineering,2016,3(5):412-426.
[9]赵庆权.硅藻土与橡胶粉复合改性沥青混合料路用性能研究[J].公路工程,2014,39(6):76-81.
[10]彭浩,王福成,杨涛,等.矿料级配对沥青混合料路用性能影响的试验分析[J].公路工程,2013,38(2):36-39+64.
[11]傅珍,林萌蕾等.生物炭改性沥青的路用性能[J].广西大学学报(自然科学版),2017,42(4):1496-1504.
[12]金浩.抗车辙剂/新型橡胶粉复合改性沥青混合料技术性能研究[D].长安大学,2015.
[13]交通运输部公路科学研究院.公路工程沥青及沥青混合料试验规程[M].人民交通出版社,2011.
[14]肖新颜,杨泽清.有机蒙脱土/废胶粉复合改性沥青的性能[J].华南理工大学学报(自然科学版),2013,41(6):116-120.
[15]冯蕾,崔亚楠,李超.盐冻循环条件下胶粉改性沥青混合料的水稳定性能[J].建筑材料学报,2014,17(5):823-828.
[16]董瑞琨,戚昌鹏,郑凯军,等.高温裂解胶粉改性沥青的低温性能试验[J].中国公路学报,2017,30(10):32-38.