Influence of Freeze-thaw Cycles on Properties of Integral Water Repellent Concrete

作     者：马志鸣 WITTMANN Folker H 肖建庄 ZHAO Tiejun 无

作者机构：Department of Strucutral EngineeringTongji University College of Civil EngineeringQingdao Technological University Aedificat Institute Freiburg 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2016年第31卷第4期

页      面：851-856页

核心收录：

学科分类：08[工学] 081304[工学-建筑技术科学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0813[工学-建筑学] 

基　　金：Funded by the National Natural Science Foundation of China(51438007) the National Basic Research Program of China(973 Program)(2009CB623203) 

主　　题：penetration silane realistic compressive instance modulus emulsion migration frost deterioration 

摘      要：Service life of reinforced concrete structures usually was designed on the basis of one selected deteriorating mechanism as for instance carbonation,chloride penetration,and frost *** could be shown in the meantime by numerous authors,however,that combined actions such as chloride penetration under mechanical load or chloride penetration in combination with freeze-thaw cycles may shorten the service life of reinforced concrete structures more than individual processes acting *** have found that chloride penetration is accelerated significantly by freeze-thaw *** damage not only reduces mechanical strength and elastic modulus but migration of chloride is facilitated in the damaged pore *** penetration can be retarded by the addition of silane emulsion to the fresh *** this way Integral Water Repellent Concrete（IWRC） can be *** of water and ions dissolved in water can not be prevented by integral water repellent treatment but it is slowed *** combination of damage mechanisms and the protective measures by integral water repellent treatment have to be taken into consideration in realistic service life prediction and design.