高黏再生型乳化沥青研制与性能评价
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摘要
为提高乳化沥青材料的使用性能并使其具备恢复旧路沥青性能及抵抗反射裂缝的能力,采用高性能聚合物胶乳和多种再生剂制备了高黏再生型乳化沥青(HVREA),分析了其黏度提升幅度与再生剂类型及掺量的关系,确定了HVREA的适宜黏度范围,优选了设计配方.基于SHRP性能分级体系及梁式复合结构四点弯曲疲劳性能测试方法,评价了HVREA的技术性能.结果表明:经高性能聚合物胶乳和再生剂复合改性后,乳化沥青的黏度得到了显著提升,固含量明显提高,低温和疲劳性能优势明显;建议HVREA的50℃赛波特黏度为200～600s.
To improve performance and allocate function of rejuvenating aged asphalt binder and resistance of reflective cracking, a series of high-viscosity rejuvenating emulsified asphalt(HVREA) were developed with polymer latex and several rejuvenators. Based on formula designed, emulsified asphalt preparation and technical properties test, effect of type and content of rejuvenator on viscosity of HVREA were studied, appropriate viscosity range of HVREA was decided and optimum formula of HVREA was suggested. PG grade and fatigue performance of HVREA were also evaluated. Results show significant improvement of viscosity and solid content of HVREA, as well as its low-temperature and anti-fatigue performance. The suggested Saybolt viscosity range of HVREA is 200 to 600 s at 50℃.
To improve performance and allocate function of rejuvenating aged asphalt binder and resistance of reflective cracking, a series of high-viscosity rejuvenating emulsified asphalt(HVREA) were developed with polymer latex and several rejuvenators. Based on formula designed, emulsified asphalt preparation and technical properties test, effect of type and content of rejuvenator on viscosity of HVREA were studied, appropriate viscosity range of HVREA was decided and optimum formula of HVREA was suggested. PG grade and fatigue performance of HVREA were also evaluated. Results show significant improvement of viscosity and solid content of HVREA, as well as its low-temperature and anti-fatigue performance. The suggested Saybolt viscosity range of HVREA is 200 to 600 s at 50℃.
引文
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[14] 中国石化科技部.石油化工产品及试验方法行业标准汇编(2016)[S].北京:中国石化出版社有限公司,2017.Sinopec Group.Industry standards for petrochemical products and test methods(2016)[S].Beijing:Sinopec Press Co.,Ltd.,2017.(in Chinese)
[15] 耿立涛,杨新龙,徐惠芬,等.撒布型应力吸收层技术性能的试验方法[J].建筑材料学报,2014,17(4):738-742.GENG Litao,YANG Xinlong,XU Huifen,et al.Methods for measuring technical performance of spreading stress absorbing layer[J].Journal of Building Materials,2014,17(4):738-742.(in Chinese)
[16] JIWON K,BUTTLAR W G.Analysis of reflective crack control system involving reinforcing grid over baseisolating interlay mixture[J].Journal of Transportation Engineering,2002,128(3):68-74.
[17] AASHTO.Standard method of test for determining the fatigue life of compacted hot-mix asphalt(HMA) subjected to repeated flexural bending[S].Washington,D.C.:AASHTO,2008.
[18] 杨斌,陈拴发,王秉纲.模拟沥青加铺层反射裂缝扩展的MTS疲劳试验[J].公路,2006(2):117-120.YANG Bin,CHEN Shuanfa,WANG Binggang.MTS fatigue experiments of simulating propagating process of reflective cracking in asphalt concrete overlay[J].Highway,2006(2):117-120.(in Chinese)
[19] 张肖宁,邹桂莲,贺志勇.沥青混合料抵抗反射裂缝能力的评价方法研究[J].华南理工大学学报(自然科学版),2002,29(7):88-91.ZHANG Xiaoning,ZOU Guilian,HE Zhiyong.Investigation of evaluating method to the ability of resisting reflective cracking for asphalt mixture[J].Journal of South China University of Technology(Natural Science),2002,29(7):88-91.(in Chinese)
[2] WU R Z,HARVEY J T,MONISMITH C L.Towards a mechanistic model for reflective cracking in asphalt concrete overlays[C]//Proceedings of the Association of Asphalt Paving Technologies.Anoka:Association of Asphalt Paving Technologies,2006:491-534.
[3] BANERJEE A,SMIT A D F,PROZZI J A.Modeling the effect of environmental factors on evaporative water loss in asphalt emulsions for chip seal applications[J].Construction and Building Materials,2012,27(1):158-164.
[4] 詹成根,郝增恒,李璐.改性乳化沥青性能影响因素研究[J].中国建筑防水,2011(20):7-10.ZHAN Chenggen,HAO Zengheng,LI Lu.Study on factors affecting performance of modified asphalt emulsion[J].China Waterproof Building,2011(20):7-10.(in Chinese)
[5] 吕晓霞.用于粘结层的高性能乳化沥青性能研究[D].西安:长安大学,2011.Lü Xiaoxia.Research on high-performance emulsion asphalt for bonding layer[D].Xi'an:Chang'an University,2011.(in Chinese)
[6] 张芹芹.SBS改性沥青的乳化对其应用性能影响的研究[D].青岛:中国石油大学(华东),2012.ZHANG Qinqin.Study on the influence of emulsification on the properties of SBS modified asphalts[D].Qingdao:China University of Petroleum(East China),2012.(in Chinese)
[7] 王伟明,吴旷怀,王凤华,等.新型SBR复合改性乳化沥青研制与性能研究[J].中外公路,2014,34(5):235-240.WANG Weiming,WU Kuanghuai,WANG Fenghua,et al.Research on development and properties of SBR combination modified emulsion asphalt[J].Journal of China and Foreign Highway,2014,34(5):235-240.(in Chinese)
[8] 孙雅珍,潘嘉伟,迟凤霞,等.高黏乳化沥青砂封层的配合比设计研究[J].沈阳建筑大学学报(自然科学版),2017,33(4):637-644.SUN Yazhen,PAN Jiawei,CHI Fengxia,et al.Research on mix design of high viscosity emulsion asphalt sand seal[J].Journal of Shenyang Jianzhu University(Natural Science),2017,33(4):637-644.(in Chinese)
[9] 刘敬辉,王端宜.采用半刚性基层预裂缝技术减少反射裂缝[J].公路,2009(3):70-75.LIU Jinghui,WANG Duanyi.Application of pre-cracking in semi-rigid base on mitigate reflective cracking[J].Highway,2009(3):70-75.(in Chinese)
[10] 况栋梁.渗透型再生剂的制备及其对再生沥青及混合料性能的影响[D].武汉:武汉理工大学,2012.KUANG Dongliang.Preparation of diffusible rejuvenator and its influence on performances of recycled bitumen and recycled asphalt mixture[D].Wuhan:Wuhan University of Technology,2012.(in Chinese)
[11] ORUC S,CELIK F,AKPINAR M V.Effect of cement on emulsified asphalt mixtures[J].Journal of Materials Engineering and Performance,2007,16(5):578-583.
[12] 林梦.橡胶沥青应力吸收层路用性能研究[D].南京:南京航空航天大学,2008.LIN Meng.Research on road performance of stress absorbing membranes interlayer-rubber[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2008.(in Chinese)
[13] 陈静云.沥青路面再生方法的试验研究[D].大连:大连理工大学,2011.CHEN Jingyun.Experimental study on recycling methods of asphalt pavements[D].Dalian:Dalian University of Technology,2011.(in Chinese)
[14] 中国石化科技部.石油化工产品及试验方法行业标准汇编(2016)[S].北京:中国石化出版社有限公司,2017.Sinopec Group.Industry standards for petrochemical products and test methods(2016)[S].Beijing:Sinopec Press Co.,Ltd.,2017.(in Chinese)
[15] 耿立涛,杨新龙,徐惠芬,等.撒布型应力吸收层技术性能的试验方法[J].建筑材料学报,2014,17(4):738-742.GENG Litao,YANG Xinlong,XU Huifen,et al.Methods for measuring technical performance of spreading stress absorbing layer[J].Journal of Building Materials,2014,17(4):738-742.(in Chinese)
[16] JIWON K,BUTTLAR W G.Analysis of reflective crack control system involving reinforcing grid over baseisolating interlay mixture[J].Journal of Transportation Engineering,2002,128(3):68-74.
[17] AASHTO.Standard method of test for determining the fatigue life of compacted hot-mix asphalt(HMA) subjected to repeated flexural bending[S].Washington,D.C.:AASHTO,2008.
[18] 杨斌,陈拴发,王秉纲.模拟沥青加铺层反射裂缝扩展的MTS疲劳试验[J].公路,2006(2):117-120.YANG Bin,CHEN Shuanfa,WANG Binggang.MTS fatigue experiments of simulating propagating process of reflective cracking in asphalt concrete overlay[J].Highway,2006(2):117-120.(in Chinese)
[19] 张肖宁,邹桂莲,贺志勇.沥青混合料抵抗反射裂缝能力的评价方法研究[J].华南理工大学学报(自然科学版),2002,29(7):88-91.ZHANG Xiaoning,ZOU Guilian,HE Zhiyong.Investigation of evaluating method to the ability of resisting reflective cracking for asphalt mixture[J].Journal of South China University of Technology(Natural Science),2002,29(7):88-91.(in Chinese)