▎ 摘　　要

NOVELTY - An early strengthening agent comprises 5-7 pts. wt. graphene oxide, 1-2 pts. wt. sodium silicate, 0.5-1.5 pt. wt. calcium thiocyanate or calcium nitrate and 80-90 pts. wt. long chain polycarboxylate water reducer. USE - Early strengthening agent used in composite (claimed) for concrete. ADVANTAGE - The agent forms a stable suspension at lower temperature without layering, is stable and convenient to use, and has excellent water reduction effect. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) preparation of early strengthening agent; and (2) early strengthening agent composite, which comprises 8-10 pts. wt. early strengthening agent, 0.8-1.2 pt. wt. polycarboxylic superplasticizer and 85-95 pts. wt. water.