开发新品种引气剂 提高混凝土耐久性  

Development of new AE additive is vital to elevation of concrete durability

作　　者：沙慧文[1] 

机构地区：[1]中国水利水电科学研究院

出　　处：《混凝土》2000年第3期9-14,共6页Concrete

摘　　要：本文简要叙述了混凝土引气剂的作用 ,国内外发展简况 ,并介绍了优选引气剂的基本方法以及改善气泡结构和提高抗冻融耐久性的关系。通过工程实例 ,说明引气剂的效果。提出了进一步推广应用优质引气剂和开发新品种引气剂的建议。In this article,the important role of air entrainment(AE) additive for concrete is described and the recent development of this kind of additive is introduced.The approach to elevate the freeze thaw resistancce of concrete by means of improving the structure of air bubbles is also expounded.The effectiveness of AE additive is further demonstrated by successful examples of engineering practice.Recom mendations for popularization of high quality AE additives and development of new variety are suggested. 〔

关 键 词：引气剂 混凝土耐久性 气泡结构 表面活性剂 

分 类 号：TU528.042[建筑科学—建筑技术科学] TU528.01