掺杂橡胶颗粒对沥青混合料性能影响研究
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摘要
采用正交实验法验证了掺杂橡胶颗粒目数、掺杂比例、剪切温度与时间对橡胶沥青的粘度、针入度、软化点、延度、弹性恢复率的影响,并按最优方案混制了橡胶沥青混合料(RAM),并对其路用性能与普通沥青混合料(AM)进行了对比研究。结果表明,掺杂20%、40目的胶粉,在150~170℃的温度下拌和90min,所制备的橡胶沥青具有最优的性能,由其混制的RAM高温稳定性、低温抗裂性以及水稳定性都明显优于AM,其中动稳定度提高了52%,车辙深度降低了近26%,变形速率降低了近60%,抵抗破坏应变的能力较AM提升了15.6%。各方面性能都有明显提升,具有良好的应用前景。
In this paper,viscosity,penetration degree,softening point,ductility and elastic recovery were studied,focusing on using orthogonal experimental design method to study the above mentioned properties with different meshes and proportions of rubber powder as well as shear temperature and time.Rubber asphalt mixture(RAM)was mixed following the optimal scheme,and its pavement performances were studied compared to asphalt mixture(AM).The results show that RAM with 20% rubber powder of 40 meshes and blended at 150-170 ℃for 90 min shows better high temperature stability,low temperature anti-cracking performance and water stability than AM.The dynamic stability and the ability to resist damage strain are increased by 52% and15.6%,while the rutting depth and the deformation rate are reduced by nearly 26% and 60% respectively.All aspects of RAM have been improved obviously than AM,owning agood application prospect.
In this paper,viscosity,penetration degree,softening point,ductility and elastic recovery were studied,focusing on using orthogonal experimental design method to study the above mentioned properties with different meshes and proportions of rubber powder as well as shear temperature and time.Rubber asphalt mixture(RAM)was mixed following the optimal scheme,and its pavement performances were studied compared to asphalt mixture(AM).The results show that RAM with 20% rubber powder of 40 meshes and blended at 150-170 ℃for 90 min shows better high temperature stability,low temperature anti-cracking performance and water stability than AM.The dynamic stability and the ability to resist damage strain are increased by 52% and15.6%,while the rutting depth and the deformation rate are reduced by nearly 26% and 60% respectively.All aspects of RAM have been improved obviously than AM,owning agood application prospect.
引文
[1]Lu Jinjin.Performance influence factors and mechanism of rubber asphalt[D].Xi’an:Chang’an University,2010(in Chinese).陆晶晶.橡胶沥青性能影响因素与改性机理研究[D].西安:长安大学,2010.
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[3]Fan Yaya.Research on the properties of economical rubber asphalt mixture[D].Xi’an:Chang’an University,2014(in Chinese).樊亚亚.经济型橡胶沥青混合料路用性能研究[D].西安:长安大学,2014.
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[7]Zheng L,Sharon H X,Yuan Y.Experimental investigation on dynamic properties of rubberized concrete[J].Construction and Building Materials,2008,22:939-947.
[8]Fontes L P T L,Trichês G,Pais J C,et al.Evaluating permanent deformation in asphalt rubber mixtures[J].Construction and Building Materials,2010,24(7):1193-1200.
[9]Navarro F M,Gámez M C R.Influence of crumb rubber on the indirect tensile strength and stiffness modulus of hot bituminous mixes[J].Journal of Materials in Civil Engineering,2012,24(6):715-724.
[10]Yamin L,Sen H,Zhang Z,et al.Design and evaluation of gap-graded asphalt rubber mixtures[J].Materials&Design,2012,35:873-877.
[11]Kestler A M,Berg R,Bigl S R,et al.Statistical significance of freeze-thaw related factors on cumulative damage of flexible pavement[J].Transportation Research Record,2011,2232:56-67.
[12]Xiong Rui,Yang Xiaokai,Yang Fang,et al.Research on filler-bitumen ratio and viscosity-temperature property of activated coal gangue modified asphalt mortar[J].Materials Review,2017,31(2):121-125.(in Chinese).熊锐,杨晓凯,杨发,等.活化煤矸石改性沥青胶浆粉胶比确定及粘温特性研究[J].材料导报,2017,31(2):121-125.
[13]Aliha M R M,Fazaeli H,Aghajani S,et al.Effect of temperature and air void on mixed mode fracture toughness of modified asphalt mixtures[J].Construction&Building Materials,2015,95:545-555.
[14]Ma T,Zhang D,Zhang Y,et al.Effect of air voids on the high-temperature creep behavior of asphalt mixture based on three-dimensional discrete element modeling[J].Materials&Design,2016,89:304-313.
[15]Rodríguez-Allozaa A M,Gallego J.Volumetric characteristics and compactability of asphalt rubber mixtures with organic warm mix asphalt additives[J].Materiales de Construction,2017,67(327):1-10.
[16]Mohammad L N,Elseifi M,Cooper S.Development of rubberized asphalt binder specification[J].Inno.Infrastruct.Solut.,2017,2(8):1-5.
[17]Rodríguez-Alloza A,Gallego J.High and low temperature properties of rubber modified binders containing warm mix asphalt additives[J].Construction and Building Materials,2014,53:460-466.
[18]Subhy A,Presti D L,Airey G.An investigation of the mechanical properties of rubber modified asphalt mixtures using a modified dry process[C].Athens:Bearing Capacity of Roads,Railways and Airfields,2017.
[19]Subhy A,Presti D L.An investigation on using pre-treated tyre rubber as a replace-ment of synthetic polymers for bitumen modification[J].Road Materials and Pavement Design,2015,16:245-264.
[20]Yang Dongliang,Feng Minglin,Yan Silu.Rubber powder effectson the properties of the rubber asphalt mixture[J].Highway Engineering,2015,31(2):15-18(in Chinese).杨冬亮,冯明林,闫思璐.橡胶粉对橡胶沥青混合料性能的影响[J].交通科学与工程,2015,31(2):15-18.
[21]Gao Hui,Liu Nianping.Research and prospect of the application of recycled wastes in the pavement of asphalt road[J].Technology of Highway and Transport,2012(2):31-36(in Chinese).高惠,刘念平.回收废料用于沥青道路铺筑的研究与展望[J].公路交通技术,2012(2):31-36.
[2]Mou Donglan,Yang Bing,Han Yinchun,et al.Study on sodium hypochlorite surface oxidation of vulcanized rubber powder[J].Chemical Research and Application,2010,22(2):244-247(in Chinese).牟东兰,杨兵,韩迎春,等.次氯酸钠对硫化橡胶粉表面的氧化改性研究[J].化学研究与应用,2010,22(2):244-247.
[3]Fan Yaya.Research on the properties of economical rubber asphalt mixture[D].Xi’an:Chang’an University,2014(in Chinese).樊亚亚.经济型橡胶沥青混合料路用性能研究[D].西安:长安大学,2014.
[4]Hernandez-Olivares F,Barluenga G,et al.Fatigue behaviour of recycled type rubber-filled concrete and its implications in the design of rigid pavements[J].Construction and Building Materials,2007,21:1918-1927.
[5]Kew H Y,Cairns R,Kenny M J.The use of recycled rubber tyres in concrete[C].Washington:Proceedings of the International Conference on Sustainable Waste Management and Recycling:Used/Post-Consumer Tyres,2004.
[6]Segre N,Joekes L.Use of tire rubber particles as addition to cement paste[J].Cement and Concrete Research,2000,30(9):1421-1425.
[7]Zheng L,Sharon H X,Yuan Y.Experimental investigation on dynamic properties of rubberized concrete[J].Construction and Building Materials,2008,22:939-947.
[8]Fontes L P T L,Trichês G,Pais J C,et al.Evaluating permanent deformation in asphalt rubber mixtures[J].Construction and Building Materials,2010,24(7):1193-1200.
[9]Navarro F M,Gámez M C R.Influence of crumb rubber on the indirect tensile strength and stiffness modulus of hot bituminous mixes[J].Journal of Materials in Civil Engineering,2012,24(6):715-724.
[10]Yamin L,Sen H,Zhang Z,et al.Design and evaluation of gap-graded asphalt rubber mixtures[J].Materials&Design,2012,35:873-877.
[11]Kestler A M,Berg R,Bigl S R,et al.Statistical significance of freeze-thaw related factors on cumulative damage of flexible pavement[J].Transportation Research Record,2011,2232:56-67.
[12]Xiong Rui,Yang Xiaokai,Yang Fang,et al.Research on filler-bitumen ratio and viscosity-temperature property of activated coal gangue modified asphalt mortar[J].Materials Review,2017,31(2):121-125.(in Chinese).熊锐,杨晓凯,杨发,等.活化煤矸石改性沥青胶浆粉胶比确定及粘温特性研究[J].材料导报,2017,31(2):121-125.
[13]Aliha M R M,Fazaeli H,Aghajani S,et al.Effect of temperature and air void on mixed mode fracture toughness of modified asphalt mixtures[J].Construction&Building Materials,2015,95:545-555.
[14]Ma T,Zhang D,Zhang Y,et al.Effect of air voids on the high-temperature creep behavior of asphalt mixture based on three-dimensional discrete element modeling[J].Materials&Design,2016,89:304-313.
[15]Rodríguez-Allozaa A M,Gallego J.Volumetric characteristics and compactability of asphalt rubber mixtures with organic warm mix asphalt additives[J].Materiales de Construction,2017,67(327):1-10.
[16]Mohammad L N,Elseifi M,Cooper S.Development of rubberized asphalt binder specification[J].Inno.Infrastruct.Solut.,2017,2(8):1-5.
[17]Rodríguez-Alloza A,Gallego J.High and low temperature properties of rubber modified binders containing warm mix asphalt additives[J].Construction and Building Materials,2014,53:460-466.
[18]Subhy A,Presti D L,Airey G.An investigation of the mechanical properties of rubber modified asphalt mixtures using a modified dry process[C].Athens:Bearing Capacity of Roads,Railways and Airfields,2017.
[19]Subhy A,Presti D L.An investigation on using pre-treated tyre rubber as a replace-ment of synthetic polymers for bitumen modification[J].Road Materials and Pavement Design,2015,16:245-264.
[20]Yang Dongliang,Feng Minglin,Yan Silu.Rubber powder effectson the properties of the rubber asphalt mixture[J].Highway Engineering,2015,31(2):15-18(in Chinese).杨冬亮,冯明林,闫思璐.橡胶粉对橡胶沥青混合料性能的影响[J].交通科学与工程,2015,31(2):15-18.
[21]Gao Hui,Liu Nianping.Research and prospect of the application of recycled wastes in the pavement of asphalt road[J].Technology of Highway and Transport,2012(2):31-36(in Chinese).高惠,刘念平.回收废料用于沥青道路铺筑的研究与展望[J].公路交通技术,2012(2):31-36.