▎ 摘　　要

NOVELTY - Plate made of fly ash from a garbage power plant comprises 50-60 pts. wt. main material of the plate, 10-15 pts. wt. cement, 20-30 pts. wt. silica sand, 10-20 pts. wt. coal gangue, 27.5-42 pts. wt. deionized water and 0.3-0.5 pts. wt. polycarboxylate superplasticizer, where the method for preparing the main material of the plate comprises involves (a) adding fly ash, deionized water and adsorption aid into a three-necked flask, and mechanically stirring, (b) subjecting the mortar in step (b) to solid-liquid separation, and the separated filter residue is aggregate, (c) adding aggregate and deionized water into a three-necked flask, ultrasonically dispersing for 0.5-1 hours to obtain a suspension dispersion, pouring the suspension dispersion and ordinary Portland cement into a cement slurry mixer, and adding polycarboxylate water agent, obtaining the mixed slurry, pouring the mixed slurry into a mold, and demolding the mold to obtain the main material of the plate. USE - The plate made of fly ash in garbage power plant is useful in the technical field of building material, preferably a fly ash autoclaved brick. ADVANTAGE - The plate reduces the influence of heavy metal ion and chloride ion in the fly ash to the anti-folding performance of the plate, and reinforces the antifolding strength of plate. The plate main material contains aminated oxidation graphene graphene oxide doped not only can promote cement hydration, but also can adjust the hydration product form and assembly, at the same time, aminated oxide graphene removing part of oxygen-containing functional group, avoiding the oxygen- containing functional group on the oxidation graphene Ca2 + ions in the cement to cross-linking, causing hydration reaction is not complete, and keeping the graphene as hydration nucleation site. The folding strength of the plank stuff is improved obviously by this way. DETAILED DESCRIPTION - Plate made of fly ash from a garbage power plant comprises 50-60 pts. wt. main material of the plate, 10-15 pts. wt. cement, 20-30 pts. wt. silica sand, 10-20 pts. wt. coal gangue, 27.5-42 pts. wt. deionized water and 0.3-0.5 pts. wt. polycarboxylate superplasticizer, where the method for preparing the main material of the plate comprises involves (a) adding fly ash, deionized water and adsorption aid into a three-necked flask, and mechanically stirring for 1-2 hours to obtain mortar, (b) subjecting the mortar in step (b) to solid-liquid separation, and the separated filter residue is aggregate, (c) adding aggregate and deionized water into a three-necked flask, ultrasonically dispersing for 0.5-1 hours to obtain a suspension dispersion, pouring the suspension dispersion and ordinary Portland cement into a cement slurry mixer, and adding polycarboxylate water agent, at a speed of 50-100 rpm, stirring for 5-10 minutes, increasing the speed to 800-1000 rpm, continuously stirring for 5-10 minutes, obtaining the mixed slurry, pouring the mixed slurry into a mold, and demolding the mold to obtain the main material of the plate. An INDEPENDENT CLAIM is included for a method for preparing the plate made of waste power plant fly ash comprising (A) using a ball mill to grind the main material of the board and the cement into fine powder by weight, adding the fine powder, silica sand, coal gangue and water reducing agent into the mixing mixer, adding deionized water, and mixing for 3-5 minutes, and obtaining a stabilized product, (B) sending the stabilized product into a fully automatic hydraulic brick machine to press into adobe, and (C) passing the bricks into an autoclave with a steam temperature of 190-250℃ and a steam pressure of 1.5-3 MPa for steam curing for 10-12 hours, and after curing, let it stand at room temperature for 1-2 weeks to obtain a board made of waste power plant fly ash.