基于复合改性方法的岩沥青低温性能改性
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摘要
为了改善岩沥青的低温性能,采用两种改性剂[丁苯橡胶(SBR)、纳米碳酸钙(nano-Ca CO3)]对布敦岩沥青(BRA)改性沥青进行复合改性。以布敦岩沥青(BRA)改性沥青为研究对象,分别将两种改性剂掺入到BRA改性沥青中,通过低温弯曲梁蠕变试验(BBR),测定两种复合改性沥青在3种掺量和3个试验温度下的蠕变柔量,从蠕变柔量值来评价复合改性剂对岩沥青改性沥青低温性能的改善效果。研究结果表明:两种复合改性沥青中,布敦岩沥青SBR复合改性沥青的低温抗裂性能最好,布敦岩沥青nano-Ca CO3复合改性沥青次之。
In order to improve the low temperature performance of the asphalt modified by Buton Rock Asphalt(BRA),two composite modifiers,SBR and nano-CaCO_3,are added into the BRA modified asphalt,then adopting bending beam rheometer(BBR) creep test in low-temperature to determinate creep stiffness module of two BRA composite modified asphalt in two mixing amounts of modifiers and three kinds of test temperature. Creep compliance is adopted for the evaluation on the improvement effect of low temperature performance of composite modified asphalt. The results show that BRA-SBR polymer composite modified asphalt's low-temperature performance is best and BRA-nano-CaCO_3 composite modified asphalt's low-temperature performance is next to the former.
In order to improve the low temperature performance of the asphalt modified by Buton Rock Asphalt(BRA),two composite modifiers,SBR and nano-CaCO_3,are added into the BRA modified asphalt,then adopting bending beam rheometer(BBR) creep test in low-temperature to determinate creep stiffness module of two BRA composite modified asphalt in two mixing amounts of modifiers and three kinds of test temperature. Creep compliance is adopted for the evaluation on the improvement effect of low temperature performance of composite modified asphalt. The results show that BRA-SBR polymer composite modified asphalt's low-temperature performance is best and BRA-nano-CaCO_3 composite modified asphalt's low-temperature performance is next to the former.
引文
[1]黄文通,徐国元.布敦岩沥青混合料路用性能的试验研究[J].华南理工大学学报:自然科学版,2012,40(2):87-91.
[2]尹应梅,张肖宁.布敦岩沥青对沥青胶浆高温流变特性的影响[J].武汉理工大学学报,2010,32(7):85-89.
[3]李瑞霞,郝培文,王春,等.布敦岩沥青改性机理[J].公路交通科技,2011,15(6):16-20,38.
[4]杜少文.岩沥青SBS复合改性沥青混合料的性能与机理[J].建筑材料学报,2012,15(6):871-874.
[5]王恒斌,葛折圣.布敦岩沥青改性沥青胶浆高温动态流变性能的试验研究[J].公路交通科技,2008,25(9):63-66.
[6]Hadiwardoyo S P,Sinaga E S,Fikri H.The influence of Buton asphalt additive on skid resistance based on penetration index and temperature[J].Construction&Building Materials,2013,42(9):5-10.
[7]Li R,Pravat K,Peiwen H,et al.Rheological and low temperature properties of asphalt composites containing rock asphalts[J].Construction&Building Materials,2015,96:47-54.
[8]王明,林发金,刘黎萍.布敦岩沥青灰分胶浆动态流变性能和微细观特性[J].同济大学学报:自然科学版,2016,44(4):567-571.
[9]祝争艳,江瑞龄,孟令国.60℃零剪切粘度ZSV指标在高速公路养护沥青评价中的应用[J].森林工程,2017,33(2):83-87.
[10]成豪杰,王绍全,郭耀龙,等.养生条件对沥青水泥砂浆抗折强度的影响[J].森林工程,2016,32(5):92-96.
[11]谭忆秋,符永康,纪伦,等.橡胶沥青低温评价指标[J].哈尔滨工业大学学报,2016,48(3):66-70.
[12]郑健龙,吕松涛,田小革.基于蠕变试验的沥青粘弹性损伤特性[J].工程力学,2008,25(2):193-196.
[2]尹应梅,张肖宁.布敦岩沥青对沥青胶浆高温流变特性的影响[J].武汉理工大学学报,2010,32(7):85-89.
[3]李瑞霞,郝培文,王春,等.布敦岩沥青改性机理[J].公路交通科技,2011,15(6):16-20,38.
[4]杜少文.岩沥青SBS复合改性沥青混合料的性能与机理[J].建筑材料学报,2012,15(6):871-874.
[5]王恒斌,葛折圣.布敦岩沥青改性沥青胶浆高温动态流变性能的试验研究[J].公路交通科技,2008,25(9):63-66.
[6]Hadiwardoyo S P,Sinaga E S,Fikri H.The influence of Buton asphalt additive on skid resistance based on penetration index and temperature[J].Construction&Building Materials,2013,42(9):5-10.
[7]Li R,Pravat K,Peiwen H,et al.Rheological and low temperature properties of asphalt composites containing rock asphalts[J].Construction&Building Materials,2015,96:47-54.
[8]王明,林发金,刘黎萍.布敦岩沥青灰分胶浆动态流变性能和微细观特性[J].同济大学学报:自然科学版,2016,44(4):567-571.
[9]祝争艳,江瑞龄,孟令国.60℃零剪切粘度ZSV指标在高速公路养护沥青评价中的应用[J].森林工程,2017,33(2):83-87.
[10]成豪杰,王绍全,郭耀龙,等.养生条件对沥青水泥砂浆抗折强度的影响[J].森林工程,2016,32(5):92-96.
[11]谭忆秋,符永康,纪伦,等.橡胶沥青低温评价指标[J].哈尔滨工业大学学报,2016,48(3):66-70.
[12]郑健龙,吕松涛,田小革.基于蠕变试验的沥青粘弹性损伤特性[J].工程力学,2008,25(2):193-196.