关于最近的高性能AE减水剂(增稠剂一液型·收缩减少型)

正和 土谷, 和秀 齊藤
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引用次数: 0

摘要

A chemical admixture for concrete that is attracting attention recently is single-liquid viscosityagent type high-range AE (air entraining) water reducing agent obtained by combining viscosity agentand high-range AE water reducing agent,which allows the manufacture of viscosity agent type self-compacting concrete without having toseparately add viscosity agent. Another one is shrinkage reducing type high-range AE water reducingagent obtained by combining shrinkage reducing agent and high-range AE water reducing agentwhich can reduce drying shrinkage strain by about 5% to 15% compared with concrete that usesconventional high-range AE water reducing agent. This paper describes the features and advantages ofthese two types of chemical admixtures。作为最近备受关注的混凝土用化学混和剂,将增稠剂和高性能AE减水剂组合而成的增稠剂一液型高性能AE减水剂,无需另外添加增稠剂即可制造增稠剂类高流动混凝土。另外,收缩减少剂和高性能AE减水剂组合而成的收缩减少型高性能AE减水剂,与使用以往高性能AE减水剂的混凝土相比,干燥收缩形变可降低5 ~ 15%。本文将对这两种化学混和剂的特点和效果进行说明。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
最近の高性能AE減水剤について(増粘剤一液タイプ・収縮低減タイプ)
A chemical admixture for concrete that is attracting attention recently is single-liquid viscosity agent type high-range AE (air entraining) water reducing agent obtained by combining viscosity agent and high-range AE water reducing agent, which allows the manufacture of viscosity agent type self-compacting concrete without having to separately add viscosity agent. Another one is shrinkage reducing type high-range AE water reducing agent obtained by combining shrinkage reducing agent and high-range AE water reducing agent, which can reduce drying shrinkage strain by about 5% to 15% compared with concrete that uses conventional high-range AE water reducing agent. This paper describes the features and advantages of these two types of chemical admixtures.最近注目されているコンクリート用化学混和剤として,増粘剤と高性能AE減水剤を組み合わせた増粘剤一液タイプの高性能AE減水剤は,増粘剤を別途添加することなく増粘剤系の高流動コンクリートを製造できる。また,収縮低減剤と高性能AE減水剤の組み合わせによる収縮低減タイプの高性能AE減水剤は,従来の高性能AE減水剤を使用したコンクリートに対して5~15%程度の乾燥収縮ひずみが低減できる。本稿は,これら2種類の化学混和剤について,その特徴や効果について解説する。
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