High-strength flyash and quartz sand aerated concrete block and processing method thereof

Abstract

The invention discloses a high-strength flyash and quartz sand aerated concrete block and a processing method thereof. The high-strength flyash and quartz sand aerated concrete block is composed of the following raw materials (by weight): 35-45 parts of flyash, 10-12 parts of quartz sand, 8-10 parts of stone flour, 4-6 parts of steel slag, 5-7 parts of red mud, 1-2 parts of attapulgite, 2-4 parts of waste plastic, 1-2 parts of calcium of molasses, 6-8 parts of cement, a proper amount of water, 0.2-0.4 part of tri-n-octylamine, 1-2 parts of an additive, 1-2 parts of aluminium powder, 0.2-0.4 part of flour, 0.01-0.02 part of polyoxyethylene aliphatic alcohol ether, 0.2-0.3 part of triterpenoidal saponin, 0.01-0.03 part of sodium stearate and 0.02-0.04 part of benzotriazole. The aerated concrete block has small drying shrinkage value, good crack resistance and good water resistance. Various properties of the aerated concrete block meet national standard. In comparison with strength of existing products, strength of the aerated concrete block of the invention is obviously raised.

Description

technical field [0001] The invention relates to the field of new building materials, in particular to a high-strength fly ash quartz sand aerated concrete block and a processing method thereof. Background technique [0002] Air-entrained concrete block is a new type of building material that is lightweight, porous, thermal insulation, good fire resistance, nailable, sawable, planable, and has certain earthquake resistance. The production principle of aerated concrete blocks is to use siliceous materials, calcareous materials, in addition, add an appropriate amount of regulating materials and a small amount of gas-generating materials to add gas-generating agents (aluminum powder), through batching, stirring, pouring, pre-curing, Lightweight porous silicate products made by cutting, autoclaving, curing and other processes. Because it contains a large number of uniform and fine pores after being aerated, it is named aerated concrete. The pores in the air-entrained concrete b...

AI Technical Summary

Problems solved by technology

[0003] At present, there is a difficult technical problem in the production of aerated concrete blocks. The collapse rate of aerated concrete blocks is relatively high, resulting in a qualified rate of about 80%. The main reason for insufficient strength is that the existing gas-generating agent has poor gas-generating effect, uneven gas-generating, irregular shape, uneven size and uneven distribution of pores.

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