Wang M.,Chongqing Zhixiang Road Paving Technology Engineering Co. |
Zhang H.,China Merchants Chongqing Communications Research and Design Institute Co. |
Zhu M.,Changsha University |
Hao Z.,China Merchants Chongqing Communications Research and Design Institute Co. |
Xue X.,Chongqing Zhixiang Road Paving Technology Engineering Co.
Geotechnical Special Publication | Year: 2011
With its unique characteristics (such as anti-leaking, fatigue crack resistance, durability), Gussasphalt has been widely used in projects of steel deck pavement. However, its limitation is the overloading abilities in high temperature condition. In China, around Yangtze River and southward, the environmental temperature in summer usually exceeds 36□, along with high traffic volume and heavy-loaded vehicle. It's necessary to improve the high temperature stability of Gussasphalt to meet the severe application requirements of steel deck pavement, for solving the technical problems on steel deck pavement in high temperature and heavy load conditions. This study, which served the increase of anti-overloading ability of Gussasphalt in high temperature condition as the purpose, by adjusting the structures and construction technology of Gussasphalt, introduced a new type of Gussasphalt - Embedded Gussasphalt. Embedded Gussasphalt has a higher interlocking rate of aggregates framework, lower asphalt content and lower construction temperature. Test results of fluidity, rutting and fatigue life showed that the high temperature stability and fatigue performance of embedded Gussasphalt got remarkably improved without fluidity decreased. © 2011 ASCE. Source