中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

Journal of Chongqing Jiaotong University(Natural Science) ›› 2010, Vol. 29 ›› Issue (6): 896-899.

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Research on Asphalt Mixture Bulk Specific Gravity by Vacuum Sealing Method

Wu Guo-xiong1,2,YANG Rui1,YANG Da-tian2,YUAN Chuan-min1   

  1. 1.School of Civil Engineering & Architecture,Chongqing Jiaotong University,Chongqing 400074,China; 2.Chongqing Key Laboratory of Mountains Road Structure and Material,Chongqing 400074,China
  • Received:2010-05-24 Revised:2010-09-10 Online:2010-12-15 Published:2015-01-22

真空密封法测定沥青混合料毛体积相对密度试验

吴国雄1,2,杨锐1,杨大田2,袁传泯1   

  1. 1.重庆交通大学土木建筑学院,重庆 400074; 2.重庆交通大学山区道路结构与材料重庆市重点实验室,重庆 400074
  • 作者简介:吴国雄(1966—),男,湖北崇阳人,教授,博士生导师,主要从事道路工程教学与科研工作。E-mail:wgx_ph.d@163.com。
  • 基金资助:
    国家自然科学基金面上项目( 51078374) ; 教育部博士点基金项目( 20095522110001)

Abstract: Through vacuum sealing method,bulk specific gravity of rutting core samples after being rolled different times was measured,reasons for the errors were discussed; comparative analysis was made between results by conventional method of saturated-surface dry method and by wax-enveloped method. Results showed that the vacuum sealed condition and quality of sealed bag were the main factors for the error. The result by vacuum sealing method had good reproducibility,and its measured value had good linear relationship with the values measured by saturated-surface dry method and by wax-enveloped method; however,there were significant differences between values.

Key words: asphalt mixture, bulk specific gravity, vacuum sealing method, comparative research

摘要: 使用真空密封法,测定了不同碾压次数成型试件的毛体积相对密度,探讨了测定时产生误差的原因;与传统 表干法以及蜡封法测定的结果进行对比分析。结果表明:真空密封状态与密封袋的材质是影响试验误差的主要因 素;使用真空密封法测定的结果重复性较好,其测定值与表干法以及蜡封法测定值间有良好的线性关系,但测定值 间存在显著性差异。

关键词: 沥青混合料, 毛体积相对密度, 真空密封法, 对比研究

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