Aerated concrete building block and manufacturing method thereof

Abstract

The invention relates to an aerated concrete block, which consists of paper-making waste, combustion residue, quicklime, cement and gypsum. The weight percentage of the compositions is as follows: 5 to 30 percent of the paper-making waste, namely white mud and green mud; 30 to 70 percent of the combustion residue, namely fly ash and furnace slag; 10 to 25 percent of the quicklime; 3 to 20 percent of the cement; and 1 to 5 percent of the gypsum. The aerated concrete block fully utilizes the paper-making waste and the combustion residue, reduces consumption of raw materials such as the cement, and not only solves the problem of environmental pollution due to direct discard of the paper-making waste but also greatly saves the raw materials such as the cement. Simultaneously, the invention also provides a method for manufacturing the aerated concrete block.

Description

technical field [0001] The invention relates to an aerated concrete block and a manufacturing method thereof, in particular to an aerated concrete block made of papermaking waste and a manufacturing method thereof. Background technique [0002] At present, aerated concrete blocks are mostly directly mixed with cement, sand, fly ash, gypsum, lime, water, etc., and then poured, initially set, cut, and steamed to form finished blocks. The demand is large, so a large number of such blocks are used to cause serious waste of cement and sandstone raw materials. [0003] At the same time, the waste white mud and green mud in the paper industry are often discarded directly, and the waste is even piled up into mountains, causing great damage to the environment. Contents of the invention [0004] The object of the present invention is to provide an aerated concrete block made of papermaking waste. [0005] Another object of the present invention is to provide a manufacturing method...

AI Technical Summary

Problems solved by technology

[0002] At present, aerated concrete blocks are mostly directly mixed with cement, sand, fly ash, gypsum, lime, water, etc., and then poured, initially set, cut, and steamed to form finished blocks. Therefore, the large-scale use of such blocks results in a serious waste of raw materials such as cement and sand

[0003] At the same time, the waste white mud and green mud in the paper industry are often discarded directly, and the waste is even piled up into mountains, causing great damage to the environment