- 目录
- 混凝土与制品
- 首页
防开裂面层沥青混合料的抗冻性能研究
作者：刘式娟
（河北天昕建设集团有限公司，河北 沧州 061000）
摘要：以石灰石矿粉、玄武岩碎石及AH-90沥青为原材料制备防开裂面层沥青混合料，测试了防开裂面层沥青混合料在不同冻融循环次数下的空隙率、吸水率以及疲劳寿命。试验结果表明，随冻融次数增加，防开裂面层沥青混合料的空隙率和吸水率增大，抗冻性能降低；冻融循环次数越多，试件的水平位移越大，疲劳寿命越短，抗冻性能越差。
关键词：防开裂；沥青混合料；抗冻性能
中图分类号：TU528.42 文献标识码：A 文章编号：1001-702X（2020）07-0065-03
Research on frost resistance of anti-cracking asphalt mixture
LIU Shijuan
（Hebei Tianxin Construction Group Co. Ltd.，Cangzhou 061000，China）
Abstract：The asphalt mixture for anti cracking surface course was prepared with limestone powder，basalt gravel and AH-90 asphalt as raw materials. The void ratio，water absorption and fatigue life of the asphalt mixture for anti cracking surface course were tested under different freeze-thaw cycles. The test results show that with the increase of freeze-thaw times，the voidage and water absorption of the asphalt mixture for anti cracking surface layer increase，and the frost resistance decreases. The greater the number of freeze-thaw cycles，the greater the horizontal displacement of the specimen，the shorter the fatigue life，and the worse the frost resistance.
Key words：anti-cracking，asphalt mixture，frost resistance