31results about How to "Meet material quality requirements" patented technology

The invention provides a method for producing an air entrapping building block by utilizing red mud, comprising the following steps: mixing the following raw materials (dry basis) by weight part: 50-70 parts of red mud, 5-10 parts of calcium oxide and 20-40 parts of active gelled material; adding water according to 85-100 percent of the dry basis mass of the mixture, adding aluminium powder according to 0.04-0.06 percent of the dry basis mass of the mixture and adding an auxiliary agent according to 0.5-0.8 percent of the dry basis mass of the mixture; mixing to prepare a sizing agent; and finally obtaining the air entrapping building block through foaming, standing and steam curing. The air entrapping building block has the advantages of stable physical properties, light weight, good heat-insulation property, high waste use ratio, simple process, low cost, environmental protection, natural resource saving and the like, and can be used as non-load bearing partitions of urban high-risebuildings and as heat-insulation building blocks of low-temperature warehouses, heat-insulation warehouses and cold storage warehouses of industrial equipment.

The invention discloses a method capable of utilizing blast-furnace slag to produce an aerated hollow brick. The method comprises the following steps: 1), taking 5-10 parts of mixing cement, 1-3 parts of gypsum and 12-35 parts of phosphorus slag to be mixed and crushed according to the mass part; and 2), before fine milling, as mass percent, taking 50-70 parts of blast-furnace slag and 1-3 parts of aluminite powder according to the mass part, uniformly mixing the two with the three crushed materials in the step 1, and then carrying out fine milling. According to the invention, a larger amount of blast-furnace slag can be used to achieve the purposes of energy conservation and environment protection and relieve the environment pollution caused by processing the blast-furnace slag pile, and a novel material source is provided for the hollow bricks.

The invention discloses a method for preparing aerated bricks by utilizing ceramic waste, and the method comprises following steps of (1) mixing raw materials according to the following dry basis in parts by weight: ceramic waste after being ground, quicklime, cement and the like; (2) placing water according to 85 to 95 percent of the mass of the mixed raw material dry base in step (1), placing waste aluminum powder according to 0.01 to 0.03 percent of the mass of the mixed raw material dry base, placing plaster according to 9 to 11 percent of the mass of quicklime, and placing peregal which is 1 to 4 percent of the mass of aluminum powder; and (3) the slurry after being stirred in step (2) is foamed for 30 to 40 minutes under the temperature of 60 to 80 DEG C. Due to the adoption of the method, the consumption of ceramic waste is vast, energy conservation and environmental protection can be realized, the environmental pollution problem caused by the stacking treatment of the ceramic waste can be alleviated, and simultaneously new raw material source can be supplied for the hollow bricks.

The invention discloses a method for manufacturing aerated hollow bricks by abandoned construction waste. The method includes steps of (1), mixing dry-base raw materials including crushed and treated abandoned construction waste, quicklime, cement and the like according to mass parts; (2), adding water accounting for 85-95% of the mass of the dry-base raw materials mixed in the step (1), adding waste aluminum powder accounting for 0.04-0.06% of the mass of the dry-base mixed raw materials, gypsum accounting for 9-11% of the mass of the quicklime and the like into the dry-base raw materials; (3), mixing the mixture in the step (2) to obtain slurry and then foaming the slurry for 30 to 40 minutes at the temperature ranging from 65 DEG C to 75 DEG C; and (4), performing autoclaved curing for the foamed slurry obtained from the step (3) under constant temperature to obtain a green body and cutting the green body into the aerated hollow bricks with corresponding sizes. Consumption of the abandoned construction waste is high, effects of energy conservation and environmental protection are realized, the problem of environmental pollution caused by stockpiling and disposal of the abandoned construction waste is alleviated, and a new raw material for production of the hollow bricks is provided.