高强轻集料混凝土抗氯离子渗透性能试验研究  

An Experimental Study of Anti-Chloride Permeability of High-strength Structural Lightweight Aggregate Concrete

作　　者：吴芳[1] 谭盐宾[1] 杨长辉[1] 叶建雄[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400045

出　　处：《重庆建筑大学学报》2007年第6期117-120,共4页Journal of Chongqing Jianzhu University

摘　　要：采用ASTMC1202-97方法测试了高强结构轻集料混凝土(HSLC)28 d和60 d龄期的导电量,分析了其氯离子渗透性能。试验结果表明:陶粒预湿处理会降低HSLC早期抗Cl-渗透性能,但对后期能力影响较小;粉煤灰的掺入可有效提高HSLC抗Cl-渗透性能,且随其掺量的增加,其增强作用大大提高;龄期对HSLC抗Cl-渗透性能的影响程度高于其对普通混凝土的影响,尽管HSLC早期抗Cl-渗透性能低于普通混凝土,但其后期增长率显著高于普通混凝土。The conductivity of high-strength structural lightweight aggregate concrete （HSLC） at 28 day and 60 day was tested in accordance with ASTM C1202-97. The anti-chloride permeability of HSLC was analyzed. The experiments show that： pre-wetting may reduce the anti-chloride permeability of HSLC early on, but only has a slight effect in the long term; the addition of fly ash can improve the anti-chloride permeability of HSLC, an improvement that rises as more fly ash is added; although the early anti-chloride permeability of HSLC is less than in normal concrete, the influence of age on anti-chloride permeability of HSLC is higher than its influence on normal concrete and is remarkably higher at later ages.

关 键 词：HSLC 抗氯离子渗透性 预湿处理 龄期 

分 类 号：TU528.2[建筑科学—建筑技术科学]