摘要
本文采用了快冻法、自然浸泡法以及干湿循环方法来研究了碳化行为对混凝土材料的抗冻性、抗氯离子扩散性以及抗硫酸盐侵蚀性的影响作用。试验结果表明碳化后的混凝土试件抗冻性有所提高,但是抗氯离子扩散性变差。同时发现,碳化混凝土试件在经历硫酸盐干湿循环后抗折强度损失大于未碳化试件,降低混凝土的抗硫酸盐侵蚀性能。
Frost resistance, chloride ions diffusion and sulfate attack of concrete materials subjected CO2 environment were studied through rapid frost method, natural immersion method and drying-watering cycle, respectively. Results showed that the carbonation can accelerate chloride ions diffusion, but improve frost resistance of concrete. Furthermore, the carbonated concrete also presented greater loss of flexural strength after drying-watering cycle, which indicated that carbonation reduced the resistance of sulfate attack.
出处
《硅酸盐通报》
CAS
CSCD
北大核心
2014年第8期1870-1873,共4页
Bulletin of the Chinese Ceramic Society
基金
国家自然科学基金(51108231)
住房和城乡建设部科学技术项目(2013-K4-20)
关键词
碳化
抗冻性
氯离子扩散
硫酸盐侵蚀
carbonation
frost resistance
chloride ions diffusion
sulfate attack
