温度对橡胶沥青存储性能的影响

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温度对橡胶沥青存储性能的影响

- J' ~6 V( F. N$ t1 X! k【英文篇名】 Temperature effect on storage performance of rubber asphalt
& [' {. d/ E2 L" a9 W7 c4 o  T【作者中文名】 纪淑贞; 黄卫东; 王翼;
【作者英文名】 JI Shu-zhen; HUANG Wei-dong; WANG Yi;
7 H  w6 z$ I# ^+ g* L# X0 B【作者单位】 同济大学道路与交通工程教育部重点实验室;
5 T8 V# k1 o4 g7 b9 E+ ~  }【文献出处】 上海公路, Shanghai Highways, 编辑部邮箱 2011年 01期  
& @5 ]( F6 i) U+ V6 @' D. D& V期刊荣誉：ASPT来源刊  CJFD收录刊
  T5 T3 E# v3 z【关键词】 橡胶沥青; 拌和温度; 高温存储; 离析; 溶胀降解;
# h5 x/ V3 n! l- ^- ]( W【英文关键词】 rubber asphalt; mixing temperature; high temperature storage; segregation; swelling degradation;
" M8 C3 K3 E6 n0 a( l0 y. G9 q7 X【摘要】 采用几种不同拌和温度制备的橡胶沥青,测试其基本性能指标及离析情况,再将剩余橡胶沥青静置存放在与其拌和温度相同的烘箱中20 h,然后测定其各项指标。结果显示,随着拌和温度的升高,橡胶沥青的针入度、延度增加,离析实验软化点差变大,而软化点、黏度下降。储存后橡胶沥青的针入度、延度有所上升,而软化点、黏度会有所下降,且离析加剧。通过对实验结果进行分析,得出了高温存储的适用情况,及橡胶沥青的最佳拌和温度范围为180～190℃,同时也验证了橡胶沥青的溶胀降解机理。
( K% H7 d# g9 J( o! U【英文摘要】 Preparation of rubber asphalt at several different mixing temperature,this paper tests their basic performance indicators and segregation situation,then put the remaining rubber asphalt in oven in the mixing temperatures for 20h,and then measure the various indicators.The results showed that,with the increasing of mixing temperature,ductility increases,the difference of softening point become larger in the segregation experiment,while the softening point,viscosity decreased.After the storage of rubber aspha...