水力发电2017，Vol.43Issue(6)：115-119,5.
不同孔隙率下沥青混凝土的水稳定性试验研究
Experimental Study on Water Stability of Asphalt Concrete with Different Porosity
杨海华 1刘亮 1游光明1
作者信息
- 1. 新疆农业大学水利与土木工程学院,新疆乌鲁木齐830052
- 折叠
摘要
Abstract
The water stability damage of asphalt concrete is due to water entering into the inside and causes aggregate and asphalt mortar peeling.In order to study the water stability performance of hydraulic asphalt concrete with natural gravel aggregate under the conditions of different porosity,the asphalt concrete specimens with different porosity are prepared by changing the hit times to carry out immersion Marshall test and freeze-thawing splitting test with different freeze-thawing times under same experimental conditions.The test results show that:(a) under the conditions of different porosity,the immersion residual stability of asphalt concrete decreases with the increase of porosity,but shall meet standard requirements;(b) the freeze-thaw splitting strength is not obviously changed with the change of porosity,and its strength will slightly decrease with the increase of freeze-thaw cycles;(c) the impact degree of porosity on water stability of asphalt concrete is lower than the filler type and the number of freeze-thaw cycles;and (d) the freeze-thaw splitting strength of asphalt concrete with stone powder filler is lower than that with cement filler.关键词
沥青混凝土/孔隙率/马歇尔试验/浸水残留稳定度/水稳定性/冻融劈裂试验Key words
asphalt concrete/porosity/Marshall test/water immersion residual stability/water stability/freeze-thaw splitting strength分类
建筑与水利引用本文复制引用
杨海华,刘亮,游光明..不同孔隙率下沥青混凝土的水稳定性试验研究[J].水力发电,2017,43(6):115-119,5.
