▎ 摘　　要

NOVELTY - Sand aerated building block comprises 10-12 pts. wt. lime , 24-26 pts. wt. cement , 60-62 pts. wt. tailings powder , 2-4 pts. wt. gypsum , 0.12-0.15 pts. wt. aluminum powder and 0.05-0.07 pts. wt. additive, further comprises 0.1-0.5 pts. wt. sulfuric acid residue, 1-3 pts. wt. zirconite, 2-3 pts. wt. sepiolite and 3-6 pts. wt. fly ash. The cement is ordinary silicate cement, slag silicate cement, pozzolana silicate cement and fly ash silicate cement. The tailing powder is copper tailing powder, iron tailings powder or limestone tailing powder. The grain diameter of the tailing powder is 0.1-0.4 mm. The aluminum powder is nano aluminum powder and graphene coated nano aluminum powder. The additive comprises 1-3 pts. wt. foaming agent, 3-5 pts. wt. N, N-bis (2-hydroxyethyl) - 2-amino-ethanesulfonic acid, 1-3 pts. wt. amino-J-pyrazolone, 2-5 pts. wt. wood cellulose nano fiber, 2-4 pts. wt. guar gum and 2-5 pts. wt. water-soluble hyperbranched epoxy resin. USE - Used as sand aerated building block. ADVANTAGE - The sand aerated block: is safe and environmentally-friendly; has excellent stability, durability comprehensive performance, mechanical strength, heat preservation effect, anti-seepage and sound insulation property. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the sand aerated building block.