【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。更多还原

【Abstract】 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.更多还原