基于旋转压实成型方法的乳化沥青冷再生混合料配合比设计（英文）
|
摘要
为了研究旋转压实成型方法在乳化沥青冷再生混合料中的应用,优化相关技术参数,利用劈裂强度试验、稳定度试验及水稳定性试验,通过改变旋转压实次数、乳化沥青用量、成型试件温度及拌合用水量等因素分析对体积参数、力学性能及水稳定性能的影响。研究结果表明:旋转压实方法能够有效提高乳化沥青冷再生混合料的最大干密度和干湿劈裂强度比指标、降低空隙率及最佳拌合用水量,且随着压实次数的增加,空隙率和劈裂强度指标呈指数函数关系变化。而干湿劈裂强度比指标与空隙率指标则符合二次函数关系。研究推荐采用经旋转压实70次,温度25°C制备的成型试件,依据干湿劈裂强度比指标确定最佳乳化沥青用量。汇总研究成果,旋转压实成型方法能够有效地在乳化沥青冷再生混合料配合比中应用。利用该方法能够显著提高路面高温稳定性能和抗水损害能力。通过对早期强度和路用性能评价,各项技术指标均高于规范。
In order to study the application of gyratory compaction molding method in emulsified asphalt cold recycled mixture and optimize the relevant technical parameters, the study was carried out according to splitting strength,stability and water stability test; the design of the experiment involved changing gyration number, emulsified asphalt and water content, molded specimen temperature and other factors to analyze the volume parameters, mechanical properties and water stability. The results show that both the maximum dry density and dry and wet splitting strength ratio(DWSSR) of emulsified asphalt cold reclaimed mixture are improved by the rotary compacting method, while the porosity and the optimal dosage of water are reduced. Furthermore, with the increase of compaction times, the porosity and splitting strength index both change exponentially. DWSSR and porosity are consistent with quadratic functions.The use of gyratory compaction for 70 times at 25 °C and the optimum dosage of emulsified asphalt can be determined based on the splitting strength ratio. The high-temperature stability and water damage resistance of the pavement can be improved by the use of rotary compacting method effectively, and the early strength and road performance are higher than the regulatory requirements.
In order to study the application of gyratory compaction molding method in emulsified asphalt cold recycled mixture and optimize the relevant technical parameters, the study was carried out according to splitting strength,stability and water stability test; the design of the experiment involved changing gyration number, emulsified asphalt and water content, molded specimen temperature and other factors to analyze the volume parameters, mechanical properties and water stability. The results show that both the maximum dry density and dry and wet splitting strength ratio(DWSSR) of emulsified asphalt cold reclaimed mixture are improved by the rotary compacting method, while the porosity and the optimal dosage of water are reduced. Furthermore, with the increase of compaction times, the porosity and splitting strength index both change exponentially. DWSSR and porosity are consistent with quadratic functions.The use of gyratory compaction for 70 times at 25 °C and the optimum dosage of emulsified asphalt can be determined based on the splitting strength ratio. The high-temperature stability and water damage resistance of the pavement can be improved by the use of rotary compacting method effectively, and the early strength and road performance are higher than the regulatory requirements.
引文
[1]REZVAN B,HASSAN Z.Evaluation of rutting performance of stone matrix asphalt mixtures containing warm mix additives[J].Journal of Central South University,2017,24(2):360-373.
[2]LI Z G,HAO P W,XU J Z.Study on impacts of freeze-thaw cycles on the shear performances of emulsified asphalt cold recycle mixture[J].Materials Review,2016,30(10):121-125.
[3]ZHANG J P,ZHU H B,PEI J Z.Evaluation of asphalt emulsification and viscosity of modified asphalt emulsion mortar based on Gompertz model[J].Journal of Traffic and Transportation Engineering,2015,15(5):1-7.
[4]ZHANG Z Q,YUAN Y J,WANG B G.Information of gyratory compaction densification curve of asphalt mixture and its application[J].China Journal of Highway and Transport,2005,18(3):182-186.(in Chinese)
[5]SU Z X,LI S M,WU X H.Improvement and performance of cold-recycled mixtures with emulsified asphalt[J].Journal of East China Jiaotong University,2014,31(2):37-43.(in Chinese)
[6]WANG H,LIU F,ZHANG B Y.Void distribution of emulsified asphalt cold mix with different curing temperature[J].Journal of Wuhan University of Technology(Transportation Science&Engineering),2015,39(2):388-392.(in Chinese)
[7]WATERS J C,BOSMA G M,HERRINGTON P R.Residual binder extraction from emulsions for quality assurance testing[R].Wellington:New Zealand Transport Agency,2008.
[8]WANG De-cai,HAO Pei-wen,LIU Na,ZHANG Hai-wei,LIZhi-gang.Workability indicator for emulsified asphalt recycled mixture and influence factors[J].Journal of Beijing University of Technology,2016,42(6):919-925.(in Chinese)
[9]JIA Y,CAO R J,LI B J.Super pave fundamentals reference manual[M].China Communications Publishing&Media Management Co.,Ltd.2005.(in Chinese)
[10]YAN J H,NI F J,YANG M K.Indirect tensile fatigue properties of asphalt emulsion cold recycled mixes[J].Journal of Building Materials,2011,14(1):58-61.(in Chinese)
[11]XIONG R,CHEN S F,GUAN B W,TU S,YANG F.Grey correlation entropy analysis of influence factors on the strength of emulsified asphalt mixture[J].Journal of Zhengzhou University,2010,31(6):60-64.(in Chinese)
[12]DONG M S,GAO Y M,LI L L,WANG L N,SUN Z B.Viscoelastic micromechanical model for dynamic modulus prediction of asphalt concrete with interface effects[J].Journal of Central South University,2016,23(4):926-933.
[13]LI J,ZHANG J H,QIAN G P,ZHENG J L,ZHANG Y Q.Three-dimensional simulation of aggregate and asphalt mixture using parameterized shape and size gradation[J].Journal of Materials in Civil Engineering,2019,31(3):ID04019004.
[14]GUO M,MOTAMED A,TAN Y Y,BHASIN A.Investigating the interaction between asphalt binder and fresh and simulated RAP aggregate[J].Materials&Design,2016,105:25-33.
[15]GUO M,TAN Y,ZHOU S W.Multiscale test research on interfacial adhesion property of cold mix asphalt[J].Construction&Building Materials,2014,68(4):769-776.
[16]ZHOU H S,CAO W D,SUN D Q,LV X X.Effect of water content on emulsion mixture[J].Journal of Tongji University(Natural Science),2006,34(10):1330-1334.(in Chinese)
[17]WEI T Z,HONG J X,LIN J T.Effect and action mechanism of cement and emulsified asphalt on the strength of cold regeneration[J].Journal of Building Materials,2017,20(2):310-315.(in Chinese)
[18]LV C B.Influences of Portland RAP on the performance of emulsified asphalt cold regeneration[J].Journal of Building Materials,2015,39(2):414-418.(in Chinese)
[19]LI Y Y,LI C M,LIU A.Study on molding methods and compressive strength of cement-emulsified asphalt mixture with coupling agent[J].Journal of Wuhan University of Technology(Transportation Science&Engineering),2015,39(6):126-132.(in Chinese)
[20]OUYANG J,TAN Y Q,LIN Y L,ZHAO J Y.Emulsification process of asphalt emulsion in fresh cement-asphalt emulsion paste[J].Materials and Structures,2015,48(12):3875-3883.
[21]ZHOU X L,XIE Y J,ZHENG K R,FU Q.Mass change and volume stability of cement emulsified asphalt mortar in wetting-drying cycles[J].Journal of the Chinese Ceramic Society,2018,46(7):895-904.(in Chinese)
[22]LI Y L,LIU Y Z,JI L,TAN Y Q.Effect of aging on the dynamic mechanical properties of cement emulsified asphalt mastic[J].Acta Materiae Compositae Sinica,2018,35(7):1975-1982.
[23]QU X,HAO P W.Research the type of mixing molding method on emulsified asphalt mixture[J].Journal of China&Foreign Highway,2014,34(4):314-317.(in Chinese)
[2]LI Z G,HAO P W,XU J Z.Study on impacts of freeze-thaw cycles on the shear performances of emulsified asphalt cold recycle mixture[J].Materials Review,2016,30(10):121-125.
[3]ZHANG J P,ZHU H B,PEI J Z.Evaluation of asphalt emulsification and viscosity of modified asphalt emulsion mortar based on Gompertz model[J].Journal of Traffic and Transportation Engineering,2015,15(5):1-7.
[4]ZHANG Z Q,YUAN Y J,WANG B G.Information of gyratory compaction densification curve of asphalt mixture and its application[J].China Journal of Highway and Transport,2005,18(3):182-186.(in Chinese)
[5]SU Z X,LI S M,WU X H.Improvement and performance of cold-recycled mixtures with emulsified asphalt[J].Journal of East China Jiaotong University,2014,31(2):37-43.(in Chinese)
[6]WANG H,LIU F,ZHANG B Y.Void distribution of emulsified asphalt cold mix with different curing temperature[J].Journal of Wuhan University of Technology(Transportation Science&Engineering),2015,39(2):388-392.(in Chinese)
[7]WATERS J C,BOSMA G M,HERRINGTON P R.Residual binder extraction from emulsions for quality assurance testing[R].Wellington:New Zealand Transport Agency,2008.
[8]WANG De-cai,HAO Pei-wen,LIU Na,ZHANG Hai-wei,LIZhi-gang.Workability indicator for emulsified asphalt recycled mixture and influence factors[J].Journal of Beijing University of Technology,2016,42(6):919-925.(in Chinese)
[9]JIA Y,CAO R J,LI B J.Super pave fundamentals reference manual[M].China Communications Publishing&Media Management Co.,Ltd.2005.(in Chinese)
[10]YAN J H,NI F J,YANG M K.Indirect tensile fatigue properties of asphalt emulsion cold recycled mixes[J].Journal of Building Materials,2011,14(1):58-61.(in Chinese)
[11]XIONG R,CHEN S F,GUAN B W,TU S,YANG F.Grey correlation entropy analysis of influence factors on the strength of emulsified asphalt mixture[J].Journal of Zhengzhou University,2010,31(6):60-64.(in Chinese)
[12]DONG M S,GAO Y M,LI L L,WANG L N,SUN Z B.Viscoelastic micromechanical model for dynamic modulus prediction of asphalt concrete with interface effects[J].Journal of Central South University,2016,23(4):926-933.
[13]LI J,ZHANG J H,QIAN G P,ZHENG J L,ZHANG Y Q.Three-dimensional simulation of aggregate and asphalt mixture using parameterized shape and size gradation[J].Journal of Materials in Civil Engineering,2019,31(3):ID04019004.
[14]GUO M,MOTAMED A,TAN Y Y,BHASIN A.Investigating the interaction between asphalt binder and fresh and simulated RAP aggregate[J].Materials&Design,2016,105:25-33.
[15]GUO M,TAN Y,ZHOU S W.Multiscale test research on interfacial adhesion property of cold mix asphalt[J].Construction&Building Materials,2014,68(4):769-776.
[16]ZHOU H S,CAO W D,SUN D Q,LV X X.Effect of water content on emulsion mixture[J].Journal of Tongji University(Natural Science),2006,34(10):1330-1334.(in Chinese)
[17]WEI T Z,HONG J X,LIN J T.Effect and action mechanism of cement and emulsified asphalt on the strength of cold regeneration[J].Journal of Building Materials,2017,20(2):310-315.(in Chinese)
[18]LV C B.Influences of Portland RAP on the performance of emulsified asphalt cold regeneration[J].Journal of Building Materials,2015,39(2):414-418.(in Chinese)
[19]LI Y Y,LI C M,LIU A.Study on molding methods and compressive strength of cement-emulsified asphalt mixture with coupling agent[J].Journal of Wuhan University of Technology(Transportation Science&Engineering),2015,39(6):126-132.(in Chinese)
[20]OUYANG J,TAN Y Q,LIN Y L,ZHAO J Y.Emulsification process of asphalt emulsion in fresh cement-asphalt emulsion paste[J].Materials and Structures,2015,48(12):3875-3883.
[21]ZHOU X L,XIE Y J,ZHENG K R,FU Q.Mass change and volume stability of cement emulsified asphalt mortar in wetting-drying cycles[J].Journal of the Chinese Ceramic Society,2018,46(7):895-904.(in Chinese)
[22]LI Y L,LIU Y Z,JI L,TAN Y Q.Effect of aging on the dynamic mechanical properties of cement emulsified asphalt mastic[J].Acta Materiae Compositae Sinica,2018,35(7):1975-1982.
[23]QU X,HAO P W.Research the type of mixing molding method on emulsified asphalt mixture[J].Journal of China&Foreign Highway,2014,34(4):314-317.(in Chinese)