矿渣和石灰石粉双掺对混凝土抗氯离子渗透性能影响的试验  

EXPERIMENT ON THE ANTI-CHLORIDE ION PERMEABILITY OF CONCRETE MIXED WITH SLAG AND LIMESTONE POWDER

作　　者：肖佳[1] 邓德华[1] 唐咸燕[1] 陈烽[1] 陈雷[1] 

机构地区：[1]中南大学土木建筑学院,长沙410075

出　　处：《工业建筑》2007年第10期73-75,87,共4页Industrial Construction

基　　金：国家自然科学基金资助项目(50378092)

摘　　要：采用RCM法测定混凝土试件的氯离子扩散系数,研究石灰石粉单掺以及矿渣和石灰石粉双掺对混凝土抗氯离子渗透性能的影响。试验表明,混凝土中掺入石灰石粉对其抗氯离子渗透不利;矿渣和石灰石粉双掺能有效降低混凝土的氯离子扩散系数,20%石灰石粉和10%～30%矿渣双掺能大大提高混凝土抗氯离子渗透能力。　The influences of the addition of limestone powder and the mixed addition of limestone powder and slag on the resistance concrete to chloride ion transport are studied,according to RCM method.The results indicate that the addition of the limestone powder was found to have detrimental influence on the anti-chloride ion permeability of concretes.The chloride ion diffusion coefficient of the concrete mixed with slag and limestone powder can be effectively decreased.The anti-chloride ion permeability of concrete mixed with 20% limestone powder and 10%～30% slag can be greatly improved.

关 键 词：石灰石粉 矿渣 氯离子扩散系数 RCM法 

分 类 号：TU528[建筑科学—建筑技术科学]