Patent ID: 11932578
Assignee: WUHAN UNIVERSITY OF TECHNOLOGY
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  Y | IPC C

Claim 0:
1. A granite stone powder phosphoric acid-based geopolymer, wherein the granite stone powder phosphoric acid-based geopolymer is prepared from following raw materials in parts by weight: 35-70 parts of granite stone powder, 15-50 parts of metakaolin, 8-50 parts of fly ash, 8-30 parts of acid activation solution and 8-30 parts of solvent; wherein
a particle size D50 of the granite stone powder is 20-30 μm;
the fly ash is F-type fly ash, the main chemical components of the fly ash are: SiO2 30-55%, Al2O3 20-30%, Fe2O3 3-6%, CaO 3-6% and SO3 0.5-3% by mass percentage;
a mass ratio of the metakaolin to the fly ash is 1:(0.4-2);
the acid activation solution is a mixed solution of sulfuric acid and phosphoric acid; a concentration of the sulfuric acid is 16-19M; a concentration of the phosphoric acid is 12-18M;
a mass ratio of the sulfuric acid to the phosphoric acid is 1:(19-26); and
the solvent is water.