Production process for autoclaved aerated concrete containing glass tailings

Abstract

The invention provides a production process for autoclaved aerated concrete containing glass tailings. The production process comprises the following process flow steps: pulping, grinding, casting, cutting and steam curing, i.e., pulping: a step of uniformly mixing the glass tailings, quartz sand, gypsum and water under stirring in proportion so as to prepare a standby slurry; grinding: a step ofgrinding quicklime into fine powder; casting: a step of metering the standby slurry, powdery quicklime and cement in proportion, carrying out feeding with a feeding machine, carrying out uniform mixing under stirring so as to form a mixed slurry, adding an aluminum powder solution into the mixed slurry in proportion so as to obtain a liquid-phase mixed material, allowing aluminum powder to react with medium water in an alkaline environment so as to generate hydrogen, allowing the quicklime to react with the water, and allowing silicon dioxide in the quartz sand to react with Ca(0H)2 and AL2O3in the cement and the quicklime under the condition of hydrothermal synthesis to generate hydrated calcium silicate and hydrated calcium aluminate so as to form a green body; and cutting of the greenbody; cutting of the green body; and steam curing. According to the invention, generated hydrated calcium silicate and hydrated calcium aluminate jointly reinforce the strength of a product; and the difficult problem of difficulty in improving pressure resistance, shock resistance, tensile strength and shear strength of a wall body in the prior art is solved.

Description

technical field [0001] The invention relates to the field of decorative building materials, in particular to a production process of autoclaved aerated concrete containing glass tailings. Background technique [0002] At present, the walls of traditional structures are mostly brick-concrete structures or commercial concrete structures. Due to the low strength of the masonry, the cross-sectional size of the components is large, which results in a large amount of materials and a large self-weight, because the traditional walls are basically All of them are mainly manual and manual, and the construction labor is large. The tensile and shear strength of the traditional wall structure are very low, so the seismic resistance is poor, and it is subject to certain limits in use, and its compressive strength is also poor. Therefore, how to improve the compressive, seismic, tensile and shear strength of the wall has become a technical problem that has been difficult to solve for a lo...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a production process for autoclaved aerated concrete containing glass tailings. The main raw materials in autoclaved aerated concrete blocks are glass tailings and quartz Sand, generally requires SiO in quartz sand 2 The content is more than 90%, and the quartz sand mainly provides SiO 2 , SiO 2 Under the condition of hydrothermal synthesis and Ca(OH) in cement and quicklime 2 and AL 2 o 3 The reaction produces calcium silicate hydrate and calcium aluminate hydrate, which jointly enhance the strength of the product and solve the problem of the existing technology that is difficult to improve the wall's compression resistance, earthquake resistance, and The Tensile and Shear Strength Conundrum