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1. (WO2018200563) AGENTS FOR ENHANCING CEMENT STRENGTH

Pub. No.:    WO/2018/200563    International Application No.:    PCT/US2018/029192
Publication Date: Fri Nov 02 00:59:59 CET 2018 International Filing Date: Wed Apr 25 01:59:59 CEST 2018
IPC: C04B 24/12
C04B 28/04
C04B 40/00
C04B 111/10
Applicants: GCP APPLIED TECHNOLOGIES, INC.
Inventors: BERODIER, Elise
CHEUNG, Josephine, H.
BUZZELL, Leslie, J.
Title: AGENTS FOR ENHANCING CEMENT STRENGTH
Abstract:
A method of forming a cement composition. The method comprises adding to a hydraulic cementitious material a first strength-enhancing agent and a second strength-enhancing agent, wherein the content of total alkali (Na20 equivalent) in the hydraulic cementitious material is less than or equal to 0.7% by weight of the cementitious material. The first strength- enhancing agent includes a compound represented by structural formula (I): and the second strength-enhancing agent is sodium sulfate, potassium sulfate, or a mixture thereof. The example values of the variables in structural formula (I) and the example amounts of the first and second strength-enhancing agents being added are defined herein.