水泥掺量对乳化沥青冷再生混合料性能影响
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摘要
采用垂直振动试验方法(VVTM)成型试件,研究了水泥掺量对乳化沥青就地冷再生混合料路用性能的影响。研究表明:当水泥掺量小于1.5%时,随水泥掺量增加,乳化沥青冷再生混合料路用性能急剧增加;当水泥掺量大于1.5%时,随水泥掺量增加,乳化沥青冷再生混合料路用性能增长缓慢;与未掺水泥相比,水泥掺量为1.5%时,乳化沥青冷再生混合料马歇尔稳定度、弯拉应力、干劈裂强度、湿劈裂强度和抗剪强度至少可分别提高11%、18%、19%、21%和85%,动稳定度可提高214%,低温抗裂性能和水稳性能略有改善。因此,建议水泥掺量为1.5%。
The vertical vibration test method(VVTM) is selected to test the effect of cement content on the performance of cold regenerative emulsified asphalt mixture. The results show that when cement content is less than 1.5%, the road performance of cold regenerative emulsified asphalt mixture increases sharply with the increasing of cement content. When cement content is more than 1.5%, the road performance of cold regenerative emulsified asphalt mixture increases slowly with the increasing of cement content. Compared with mixture without cement, when the cement content is 1.5%, the Marshall stability, flexural tensile strength,dry splitting strength, wet splitting strength and shear strength of this Mixture increased by at least 11% 、18%、19%、21% and 85% respectively,dynamic stability increased 214%, low temperature anti-crack property and water stability slightly improved slightly. Therefore, it is suggested that the cement content is 1.5%.
The vertical vibration test method(VVTM) is selected to test the effect of cement content on the performance of cold regenerative emulsified asphalt mixture. The results show that when cement content is less than 1.5%, the road performance of cold regenerative emulsified asphalt mixture increases sharply with the increasing of cement content. When cement content is more than 1.5%, the road performance of cold regenerative emulsified asphalt mixture increases slowly with the increasing of cement content. Compared with mixture without cement, when the cement content is 1.5%, the Marshall stability, flexural tensile strength,dry splitting strength, wet splitting strength and shear strength of this Mixture increased by at least 11% 、18%、19%、21% and 85% respectively,dynamic stability increased 214%, low temperature anti-crack property and water stability slightly improved slightly. Therefore, it is suggested that the cement content is 1.5%.
引文
[1]杨宇亮,孙立军,毛如麟,等.回收旧沥青混合料冷拌再生技术的研究[J].公路交通科技,2002,(06):38-40.
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[4] S Charmot, W Dong, X Xu, Feasibility of Cold Recycling Asphalt Mixture Design Optimization on the Basis of Fracture Properties Using Semicircular Bending at Low Temperature. 2017
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[14]弓锐.水泥对乳化沥青冷再生混合料性能的影响[J].石油沥青,2015, 29(03):5-8.
[15]徐金枝,郝培文,刘丽.泡沫沥青冷再生混合料力学特性试验[J].公路交通科技,2011, 28(12):10-15.
[16]居浩,黄菲.乳化沥青冷再生设计方法及路用性能研究[J].石油沥青,2013, 27(02):59-67.
[17] JTGE51-2009,公路工程无机结合料稳定材料试验规程[S].
[18]蒋应军,乔怀玉.垂直振动法水泥稳定碎石设计与施工技术[M].北京:人民交通出版社,2012.
[19]苏勇文.AC-20沥青混合料试件垂直振动方法[D].西安:长安大学,2013.
[20]毕玉峰,孙立军.沥青混合料抗剪试验方法研究[J].同济大学学报(自然科学版),2005,(08):1036-1040.
[21]杜少文.水泥乳化沥青混凝土路用性能与强度形成机理研究[D].西安:长安大学,2007.
[2]张志祥,吴建浩.再生沥青混合料疲劳性能试验研究[J].中国公路学报,2006,(02):31-35.
[3] Wang Y B, Ying G Q, Hu J L, et al. Analysis for Influence Factors of Cold Recycling Mixture Compaction Test[J]. Applied Mechanics&Materials, 2012, 204-208:1633-1637.
[4] S Charmot, W Dong, X Xu, Feasibility of Cold Recycling Asphalt Mixture Design Optimization on the Basis of Fracture Properties Using Semicircular Bending at Low Temperature. 2017
[5]王宏.不同水泥掺量乳化沥青冷再生混合料细微观空隙分布特征[J].公路交通科技,2016, 33(07):27-34.
[6]严金海,倪富健,陶卓辉.改性乳化沥青-水泥就地冷再生混合料性能研究[J].公路交通科技,2009, 26(09):41-45.
[7]钟梦武,吴超凡,于永生,等·掺加水泥的乳化沥青冷再生沥青混合料设计方法研究[J].公路,2008,(01):195-199.
[8]徐志坤.泡沫沥青和水泥用量对冷再生沥青混合料路用性能的影响[J].公路工程,2017, 42(01):244-252.
[9]郭银涛,刘清泉,刘振清.考虑水泥作用的改性乳化沥青冷再生混合料性能研究[J].公路交通科技,2012, 29(06):6-10.
[10]李锋,严金海,朱浩然,卢勇.乳化沥青冷再生混合料低温性能研究[J].公路,2015, 60(03):164-168.
[11]杜少文.外加材料对乳化沥青冷再生混合料路用性能的影响[J].建筑材料学报,2013, 16(03):534-538.
[12]李秀君.泡沫沥青冷再生混合料抗剪性能的试验研究[J].建筑材料学报,2010, 13(01):27-31.
[13]孙岩松.水泥掺量对乳化沥青冷再生混合料性能的影响[J].武汉理工大学学报,2013, 35(04):45-48.
[14]弓锐.水泥对乳化沥青冷再生混合料性能的影响[J].石油沥青,2015, 29(03):5-8.
[15]徐金枝,郝培文,刘丽.泡沫沥青冷再生混合料力学特性试验[J].公路交通科技,2011, 28(12):10-15.
[16]居浩,黄菲.乳化沥青冷再生设计方法及路用性能研究[J].石油沥青,2013, 27(02):59-67.
[17] JTGE51-2009,公路工程无机结合料稳定材料试验规程[S].
[18]蒋应军,乔怀玉.垂直振动法水泥稳定碎石设计与施工技术[M].北京:人民交通出版社,2012.
[19]苏勇文.AC-20沥青混合料试件垂直振动方法[D].西安:长安大学,2013.
[20]毕玉峰,孙立军.沥青混合料抗剪试验方法研究[J].同济大学学报(自然科学版),2005,(08):1036-1040.
[21]杜少文.水泥乳化沥青混凝土路用性能与强度形成机理研究[D].西安:长安大学,2007.