渗透剂对再生沥青混合料性能的影响
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摘要
将具有高渗透性的渗透剂用于废旧沥青混合料的再生,研究了渗透剂对再生沥青混合料常规力学性能的影响。研究结果表明,随着渗透剂掺量的增加,再生沥青混合料的浸水残留稳定度和冻融劈裂强度比增大、车辙深度增加、动稳定度下降。当旧料掺量为30%、再生剂用量为新老沥青总量的7.5%、渗透剂掺量为再生剂总量的3%时,再生沥青混合料的常规力学性能、水稳定性和高温抗车辙性能接近于新沥青混合料的常规力学性能、水稳定性和高温抗车辙性能。
Penetrant with high permeability is applied for the recycling of waste asphalt mixture,and the effect of penetrant on the road performance of recycled asphalt mixture is studied.The results indicate that the ratio of residual stability of water immersion to freeze-thaw splitting strength of recycled asphalt mixture increases with the adding volume of penetrant,and the rutting depth increases and dynamic stability decreases.When the content of waste materials is 30%,the regenerant dosage is 7.5% of that of new and waste asphalt and the penetrant is 3% of total volume of regenerant,the regular mechanical performance,water stability and high temperature rut-resistance properties of the recycled asphalt mixture are close to those of new asphalt mixture.
Penetrant with high permeability is applied for the recycling of waste asphalt mixture,and the effect of penetrant on the road performance of recycled asphalt mixture is studied.The results indicate that the ratio of residual stability of water immersion to freeze-thaw splitting strength of recycled asphalt mixture increases with the adding volume of penetrant,and the rutting depth increases and dynamic stability decreases.When the content of waste materials is 30%,the regenerant dosage is 7.5% of that of new and waste asphalt and the penetrant is 3% of total volume of regenerant,the regular mechanical performance,water stability and high temperature rut-resistance properties of the recycled asphalt mixture are close to those of new asphalt mixture.
引文
[1]吴少鹏,黄晓明,赵永利.路用沥青再生剂的研究[J].国外建材科技,2001,22(4):47-50.
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[3]Shen Junan,Amirkhanian Serji,Tang Boming.Effects of Rejuvenator on Performance-based Properties of Rejuvenated Bitumen Binder and Mixtures[J].Construction and Building Materials,2007,21(5):958-964.
[4]Lee Soon Jae,Amirkhanian Serji N,Park Nam W.Characterization of Warm Mix Asphalt Binder Containing Artifically Long-Term Aged Binders[J].Construction and Building Materials,2007,23(6):2371-2379.
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[8]Zhang F,Yu J Y,Wu S P.Effect of ageing on rheological properties of storage-stable SBS/sulfurmodified asphalts[J].Journal of Hazardous Materials,2010,182:507-517.
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[11]李进,王金凤,徐萌,等.再生剂对再生沥青感温性的影响[J].石油化工高等学校学报,2010,23(1):34-38.
[2]王永刚,廖克俭,闫锋,等.废旧沥青再生剂的开发[J].精细石油化工进展,2003,4(8):18-21.
[3]Shen Junan,Amirkhanian Serji,Tang Boming.Effects of Rejuvenator on Performance-based Properties of Rejuvenated Bitumen Binder and Mixtures[J].Construction and Building Materials,2007,21(5):958-964.
[4]Lee Soon Jae,Amirkhanian Serji N,Park Nam W.Characterization of Warm Mix Asphalt Binder Containing Artifically Long-Term Aged Binders[J].Construction and Building Materials,2007,23(6):2371-2379.
[5]拾方治,马为民.沥青路面再生技术手册[M].北京:人民交通出版社,2006
[6]左桂宁,陆阳,苗春泽.阿布森法沥青回收的改性与探讨[J].交通运输工程与信息学报,2009,7(2):81-85.
[7]李龙.沥青混合料的再生利用研究[D].长安大学硕士论文,2003.
[8]Zhang F,Yu J Y,Wu S P.Effect of ageing on rheological properties of storage-stable SBS/sulfurmodified asphalts[J].Journal of Hazardous Materials,2010,182:507-517.
[9]Airey G D.Rheological properties of styrene butadiene styrene polymer modified road bitumens[J].Fuel,2003,82:1709-1719.
[10]张金喜.道路工程材料资源循环利用技术[M].北京:科学出版社,2008.
[11]李进,王金凤,徐萌,等.再生剂对再生沥青感温性的影响[J].石油化工高等学校学报,2010,23(1):34-38.