コンクリート混和剤、コンクリート組成物、コンクリート組成物の打込み方法、及びマスコンクリート

Japanese Patent JP7270929

B2

To provide a concrete admixture which can suppress a structure strength correction value, especially, in an initial stage of hardening of hot weather concrete, mass concrete, and the like even when they are subjected to a high temperature history due to surrounding environment conditions, heat of hydration, and the like.SOLUTION: The concrete admixture comprises at least one or more A components selected from water-soluble vinyl copolymers and at least one or more B components selected from saccharides. As the B components, those composed of sucrose and/or glucose, and fructose, especially those having a mass ratio, obtained by dividing a total mass of sucrose and glucose by a mass of fructose, in a range of 50/50-90/10 are preferred.SELECTED DRAWING: None

JP6530890	Method for producing high-strength cement mortar composition and high-strength cement mortar cured product
WO/2011/083839	SHRINKAGE REDUCING AGENT FOR HYDRAULIC MATERIAL
JP6587853	Cement dispersant composition and cement composition

Tetsuro Matsushita
Masao Kojima
Yukiko Nishioka
Hiroshi Shimohata
Masatoshi Shinchi
Jun Kunioka
All shakes
Kazuhisa Yoda
Tetsushi Kaneda
Hiroki Naito
Kazutoshi Okada
Shinji Tamaki
Taro Mizuno
Atsuyuki Mase

JP2019156956A

May 11, 2023

August 29, 2019

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TAKENAKA CORPORATION
Kashima Construction Co., Ltd.
Takemoto Yushi Co., Ltd.

C04B24/26; C04B24/10; C04B28/02; C08K5/1545; C08L33/06; C08L55/00; E04G21/02

JP940447A
JP2002167257A
JP201037129A
JP2015182917A
JP692704A
JP2013203635A
JP2013203636A

Ippei Watanabe
Sei Koike
Yoshio Nagaoka
Satoshi Asakura

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