沥青发泡特性的优化
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国家国际科技合作专项项目(2013DFA81910);国家自然科学基金资助项目(51378242,51008146)


Optimization of Asphalt Foaming Characteristics
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    摘要:

    为了优化沥青的发泡性能,采用5种表面活性剂及2种添加方式、6种发泡用水量及2种发泡水温进行沥青发泡试验,并进行不同发泡特性泡沫沥青拌制的泡沫沥青混合料的性能试验.结果表明:添加表面活性剂可以明显提高泡沫沥青半衰期,但不能有效改善泡沫沥青膨胀率;采用在沥青中添加阳离子表面活性剂、提高发泡用水量和发泡温度等综合技术措施,可以同时改善泡沫沥青的膨胀率和半衰期;泡沫沥青发泡效果对泡沫沥青混合料的劈裂强度、干湿劈裂强度比、冻融劈裂强度比和弯曲应变没有明显影响,但是对混合料疲劳寿命有较为显著的影响,良好的沥青发泡效果有利于混合料的长期性能.

    Abstract:

    In order to optimize asphalt foaming characteristics, asphalt foaming tests using five surfactants and two ways of surfactant addition, six use levels of foaming water and two foaming water temperatures were conducted. Then, the performance tests of foamed asphalt mixtures made by foamed asphalts with different foaming characteristics were conducted. The results show that the surfactants can significantly improve the half life of foamed asphalt, however, it cant effectively improve the expansion rate of foamed asphalt. The expansion rate and the half life of foamed asphalt can be improved by adding a cationic surfactant, increasing use level of foaming water and foaming water temperature. The foaming characteristics of foamed asphalt has no significant effect on the indirect tensile strength(ITS), dry wet tensile strength ratio, freeze thaw tensile strength ratio and flexural strain of asphalt mixtures, but has significant effect on the fatigue life. The foamed asphalt mixture made by foamed asphalt with good foaming characteristics has a better long term performance.

    参考文献
    [1]何亮,王真,马育,等.发泡剂对沥青发泡和混合料水稳定性的影响[J].建筑材料学报,2010,13(2):198 202.
    HE Liang,WANG Zhen,MA Yu,et al.Effect of foaming agent on asphalt foaming and water stability of mixture[J].Journal of Building Materials,2010,13(2):198 202.(in Chinese)
    [2]栗关裔,李立寒.沥青发泡效果与泡沫沥青混合料性能的相关性[J].建筑材料学报,2008,11(5):555 560.
    LI Guanyi,LI Lihan.Relationship between asphalt foaming effect and foamed asphalt mixture performance[J].Journal of Building Materials,2008,11(5):555 560.(in Chinese)
    [3]FU Pengcheng,JONES D,HARVEY J,et al.Investigation of the curing mechanism of foamed asphalt mixes based on micromechanics principles[J].Journal of Materials in Civil Engineering,ASCE,2010,22(1):29 38.
    [4]KIM Y,IM S,LEE H.Impacts of curing time and moisture content on engineering properties of cold in place recycling mixtures using foamed or emulsified asphalt[J].Journal of Materials in Civil Engineering,ASCE,2011,23(5):542 553.
    [5]XU Jian,HUANG Songchang,QIN Yongchun,et al.Impacts of cement content on properties of foamed asphalt cold recycling mixtures[C]∥10th Conference on Asphalt Pavements for Southern Africa.South Africa:[S.l.],2011.
    [6]FU Pengcheng,JONES D,HARVEY J.The effects of asphalt binder and granular material characteristics on foamed asphalt mix strength[J].Construction and Building Materials,2011,25(2):1093 1101.
    [7]徐金枝.泡沫沥青及泡沫沥青冷再生混合料技术性能研究[D].西安:长安大学,2007.
    XU Jinzhi.Research on technical performance of foamed asphalt and foamed asphalt cold recycled mix[D].Xian:Changan University,2007.(in Chinese)
    [8]JENKINS K J,van de MFC V,de JLA G.Characterisation of foamed bitumen[C]∥7th Conference on Asphalt Pavements for Southern Africa.Zimbabwe:CAPSA,1999.
    [9]乔卫华.泡沫沥青发泡机理及其混合料性能的研究[D].重庆:重庆交通大学,2008.
    QIAO Weihua.Research on mechanism of foamed bitumen and performance of foamed asphalt mixtures[D].Chongqing:Chongqing Jiaotong University,2008.(in Chinese)
    [10]栗关裔.泡沫沥青冷再生技术的应用研究[D].上海:同济大学,2008.
    LI Guanyi.Application research of cold recycling technology using foamed asphalt[D].Shanghai:Tongji University,2008.(in Chinese)
    [11]李峰,黄颂昌,徐剑.泡沫沥青衰变方程与发泡特性评价[J].同济大学学报:自然科学版,2011,39(7):1031 1034.
    LI Feng,HUANG Songchang,XU Jian.Foamed asphalt decay equation and asphalt foaming characteristics evaluations[J].Journal of Tongji University:Natural Science,2011,39(7):1031 1034.(in Chinese)
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李峰,曾蔚,徐剑.沥青发泡特性的优化[J].建筑材料学报,2015,18(1):162-167

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  • 收稿日期:2013-07-16
  • 最后修改日期:2013-08-22
  • 在线发布日期: 2015-02-26
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