材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
フレッシュコンクリートの凝結時間の調節に関する基礎的研究
竹内 徹長瀧 重義大即 信明坂本 健
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1996 年 45 巻 9 号 p. 985-992

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The diversity of concreting methods in recent years has led to a demand for long retardation of concrete setting. Conventional research has achieved retardation for up to about 3 days by the addition of a set retarder, but few studies have dealt with concrete that is placeable after a much longer period.
This paper reports the effects of the set retarder dosage and temperature on the slump, period of set retardation, time limits for superplasiticizing and compressive strength of concrete. The usability of concrete with long-retarded setting is disscussed as well.

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