Neutralization Mechanism of Concrete in CO2 and Acid Rain
There are a great number of concrete structures existing in the atmospheric environment. The process of industrialization has led to the severe air pollution. The density of CO2 increases and acid rain areas expand, so that the neutralization of concrete is increasingly concerned about. CO2 and acid rain are the most ordinary acidic materials in the atmospheric environment. The phases of CO2 and acid rain are different, so the degrees of concrete neutralization in CO2 or acid rain are also different. In this paper, the concrete neutralization process caused by CO2 gas and acid rain will be analyzed through the theory of diffusion, mass transfer, the mechanism of carbonation. Then the neutralization mechanism of concrete induced by CO2 and acid rain were revealed, which is significant for the durability design and assessment and for the further investigation of reinforcement corrosion and service life prediction of concrete structures.
neutralization mechanism acid rain erosion carbonation
J.G. Niu W.L.Wang D.T. Niu
School of Architecture and Civil Engineering, Inner Mongolia University of Technology,Baotou, 014010 Shenzhen Durability Center for Civil Engineering,Shenzhen University, Guangdong, 518060, China School of Civil Engineering,Xian University of Architecture and Technology, Xian,710055, China
国际会议
济南
英文
1056-1061
2010-05-09（万方平台首次上网日期，不代表论文的发表时间）