Research on water erosion resistant performance of rubber powder modified cement emulsified asphalt mortar
XIE Jun
QIN Feng
TANG Yinqing
LI Chun
Abstract：Cement emulsified asphalt mortar is widely used in slab damper structure layer of slab ballastless track. It has long been affected by load,rainwater and dry and wet circulation. In order to ensure the safety of high-speed rail,cement emulsi-fied asphalt mortar is required to have sufficient resistance to water erosion. The samples were prepared by adding rubber powder of 0,2%,4%,6%,8% and 10% cement powder into rubber powder modified cement emulsified asphalt mortar. The freeze-thawing splitting strength,dry and wet circulation strength loss,running water erosion and other water erosion resistance properties were tested. The results show that the rubber powder content affects the water erosion resistance of the rubber powder modified cement emulsified asphalt mortar. When the rubber powder content is about 4%,the prepared modified cement emulsified asphalt mortar has the best water erosion resistance performance.
Keywords：rubber powdercement emulsified asphalt mortarwater erosion resistant performancemodification effects
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 48-51,107 )