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)