US 2019/0084881 A1

Cement additive, cement composition, and raw material for cement additive

(22) 07.07.2016

(43) 21.03.2019

(57) Provided is a cement additive that can significantly improve the strength of a cured product of a cement composition over a long time period. Also provided is a cement composition including such cement additive. The cement additive of the present invention includes: a compound (A) having a weight-average molecular weight of more than 3000, and having a structure in which 5 moles or more of an alkylene oxide is added to 1 mole of a polyhydric alcohol; and an alkanolamine compound (B).

(71) Nippon Shokubai Co., Ltd., Osaka (JP)

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