混凝土抗风蚀磨损表面强化处理材料的对比试验研究  

Comparative Experimental Research on Concrete Surface Treatment Materials Resistance to Wind Erosion

作　　者：章岩[1,2] 王起才[1] 张粉芹[1] 马华军[1] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070 [2]西南科技大学先进建筑材料四川省重点实验室,四川绵阳621010

出　　处：《中国铁道科学》2012年第2期43-47,共5页China Railway Science

基　　金：铁道部科技研究开发计划项目(2010G019-A);西南科技大学科研基金资助项目(11zx7148)

摘　　要：兰新铁路第二双线新疆段穿越新疆九大风区中风力最强的五大风区。针对风蚀对铁路混凝土结构物的磨蚀问题,选用4种表面强化材料,通过混凝土耐磨蚀和疏水性试验,进行提高混凝土表面耐风蚀性能研究。结果表明:4种表面强化材料均可提高混凝土表面的抗风蚀磨损能力;其中渗透性复合乳液型混凝土表面抗风蚀处理材料在提高混凝土的耐磨蚀性和疏水性以及价格方面具有综合优势,它通过表面渗透方式渗入混凝土中并和混凝土发生反应,在混凝土表面形成致密疏水的网状结构,达到防护和抗风蚀的效果,可提高混凝土表面耐磨度一倍多,表干时间缩短99.35%,且在抗紫外线、抗开裂、抗冻等方面均表现出较好的效果。The second double-track section in Xinjiang of Lanzhou-Xinjiang Railway crosses the five most powerful wind areas of the nine wind areas in Xinjiang. For wind erosion to the railway concrete structure, by means of abrasion resistance and hydrophobicity tests, four kinds of concrete surface treatment materials were chosen to carried through research to improve the abrasion resistance of concrete surface. The results show that four kinds of surface treatment materials can all improve the abrasion resistance of concrete surface to wind erosion. Among which, permeable composite latex concrete surface treatment material has comprehensive advantages in abrasion resistance, hydrophobicity and price. It can penetrate through the surface of concrete by surface seepage method and react with concrete to form a dense hydrophobic net structure on the surface to achieve the effects of protection and resistance to wind erosion. It can improve the abrasion resistance of concrete surface more than doubled, and the surface drying time is reduced 99.35%. It has better effect in anti-ultraviolet, anti-cracking and anti-freezing, etc.

关 键 词：兰新铁路 混凝土 风蚀 表面处理材料 渗透 耐磨蚀性 疏水性 

分 类 号：U214.6[交通运输工程—道路与铁道工程] TU528.51[建筑科学—建筑技术科学]