不同条件下多孔沥青混合料黏结性能研究
Study on bonding properties of porous asphalt mixture under different conditions
王明铜1
作者信息
- 1. 甘肃省白银公路事业发展中心景泰公路段,甘肃 白银 730499
- 折叠
摘要
采用高黏改性剂A对SBS改性沥青进行高黏改性,通过肯塔堡飞散试验对不同条件下的多孔沥青混合料的黏结性能进行研究.结果表明,冻融循环次数、最大公称粒径和水分的增加会增大多孔沥青混合料的飞散损失,但纤维可有效改善多孔沥青混合料的飞散损失.当冻融循环次数为1和8次时,PAC-16的飞散损失分别较PAC-13增大17.60%和3.90%,含纤维PAC-13的飞散损失分别较不含纤维PAC-13的减少15.34%和17.94%,有水试验试件的飞散损失分别较无水状态下增大18.58%和36.63%.
Abstract
High viscosity modifier A is used to modify SBS modified asphalt,and the bonding properties of porous asphalt mixture under different conditions are studied by Cantabro test.The results show that increasing the number of freeze-thaw cycles,maximum nominal particle size and water content can increase the scattering loss of porous asphalt mixture,but fibers can effectively decrease the loss.When the number of freeze-thaw cycles is 1 or 8,the loss of PAC-16 is 17.60%and 3.90%higher than that of PAC-13,the loss of PAC-13 containing fiber is 15.34%and 17.94%lower than that of PAC-13 without fiber,and the loss of specimen under water condition is 18.58%and 36.63%higher that of specimen without water,respectively.
关键词
多孔沥青混合料/高黏改性沥青/黏结性能/肯塔堡飞散试验Key words
porous asphalt mixture/high viscosity modified asphalt/bonding property/Cantabro test引用本文复制引用
出版年
2024
NETL
NSTL
万方数据