▎ 摘　　要

NOVELTY - Green carbon-reducing concrete admixture comprises 3-5 pts. wt. sodium lignosulfonate grafted polycarboxylate superplasticizer, 3-5 pts. wt. double-doped expansion agent, 0.01-0.05 pts. wt. air-entraining agent, and 0.1-0.5 pts. wt. natural fiber. USE - Green carbon-reducing concrete admixture. ADVANTAGE - The green carbon-reducing concrete admixture has significantly improved antifreeze performance of concrete by using graphene oxide, air-entraining agent and natural fiber improved toughness of concrete while fully ensuring the mechanical properties of concrete, reduced amount of cement, indirectly reduced the emission of carbon dioxide, and has good social value and cost-effective. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: 1. a green carbon-reducing concrete, which comprises: a green carbon-reducing concrete admixture; and 2. a method for preparing green carbon-reducing concrete, which involves: (a) mixing the green carbon-reducing concrete admixture, ordinary Portland cement, superfine fly ash and water in specific portion weight; (b)placing in a mixer for 30-40 seconds; (c)stirring uniformly; and (d) adding finely ground steel slag powder, finely ground slag powder, crushed waste ceramics, gravel, waste tire rubber powder, and sand for stirring, and the stirring time is 150-180 seconds to obtain the product.