摘要
研究了冻融与磨耗复合作用下的混凝土耐久性能。研究结果表明:先冻后磨混凝土试件冻融次数越大,磨蚀后的磨坑及磨蚀质量损失越大;冻融与磨耗复合作用下的混凝土质量损失比先冻后磨及先磨后冻试件质量损失大很多,这是因为两种作用互为促进,加速劣化过程。将无机磨耗试验方法引用到混凝土路面的耐磨性评价方法中,明确了无机磨耗试验方法可以用于模拟路面实际三体磨损状态,评价路面混凝土耐磨性能。
The concrete durability under the compound action of freeze-thaw and abrasion is studied.The research results indicate that pits and mass loss after the worn of the concrete specimens which are wore after freeze-thawed get larger while the freeze-thawing times get more,and mass loss of the concrete specimens which are under the compound action is much higher than the specimens which are wore after freeze-thawed or freeze-thawed after worn.Because the two effects promote each other, accelerated the deterioration process.By introducing wear inorganic test into abrasion resistance evaluation of concrete pavement,the test can be used to simulate the actual three-body abrasion status of pavement,to evaluate the abrasion resistance of pavement concrete.
出处
《混凝土》
CAS
CSCD
北大核心
2008年第9期7-9,共3页
Concrete
基金
宁波大学人才引进资助项目(XR0711007)
交通部西部建设项目(200331882008)
关键词
混凝土路面
冻融
磨蚀
复合作用
机理
concrete pavement
freezing and thawing
abrasion
compound action
mechanism
