NFB保坍剂的研发与应用  

The research and application of NFB set-retardi ng agent

作　　者：付日荣[1] 

机构地区：[1]山东建筑工程学院土木工程系,山东济南250014

出　　处：《混凝土》2003年第9期50-50,59,共2页Concrete

摘　　要：NFB保坍剂是一种由羟基羧酸类减水剂、糖类缓凝剂、蛋白质类保塑剂为组分复合而成的新型外加剂 ,它具有较强保塑能力 ,对不同水泥的适应性好 ,拌合物 35℃时 1h坍落度损失不超过 1 0 % ,2h损失不超过 30 %的良好保坍性能 ,大量掺加时对混凝土后期强度无影响。解决了目前商品混凝土普遍存在的坍落度损失太快的问题 。The NFB set-retarding agent is a compound produ ct which has been made mainly of carboxylic acid.Its advantages include great se t retard capacity,wide application to various kinds of cement,low slump loss an d free of effect to long term concrete strength.Its low cost gives wide applicati on in ready-mixed concrete.

关 键 词：商品混凝土 保坍剂 坍落度损失 

分 类 号：TU528.042[建筑科学—建筑技术科学]