Environment-friendly autoclaved aerated concrete block

Abstract

The invention discloses an environment-friendly autoclaved aerated concrete block which consists of the following raw materials in parts by weight: 5-10 parts of fresh aloes, 5-10 parts of fresh thyme, 20-30 parts of oil shale ashes, 15-25 parts of cement, 10-20 parts of kieselguhr, 0.04-0.12 part of a foaming agent and 32-40 parts of water. The environment-friendly autoclaved aerated concrete block is prepared through the procedures of crushing, stirring, casting molding, delaying curing and pre-curing, turnover cutting and autoclaved curing; the aloe and the thyme are added to the ingredients, so that the concrete block has aromatic odors of plants, also has relatively good antibacterial and bactericidal effects, the radioactivity of the block is reduced and the bodies of a block production worker and an installation worker are protected; and through the addition of the kieselguhr, the produced brick is capable of adsorbing indoor toxic and harmful substances such as formaldehyde, benzene and ammonia, decomposing the peculiar smell in air and effectively protecting good health of indoor residents, is an environment-friendly building material, and has relatively good ecological and economical benefits.

Description

technical field [0001] The invention relates to a concrete block for building, in particular to an environment-friendly autoclaved aerated concrete block. Background technique [0002] Aerated concrete block is a new type of wall building material. It is unique in that it is a very light thermal insulation building wall material. Aerated concrete blocks are mostly used in construction projects in the form of prefabricated products. They can be used to build load-bearing walls of houses with three floors or less, and can also be used as non-load-bearing filling wall materials for industrial plants, multi-storey, and high-rise frame structures. use. Compared with the traditional clay sintered brick material, although the strength of the aerated concrete block is lower, its product cost is lower, it can greatly reduce the weight of the building, and it has a good thermal insulation effect. At the same time, clay solid bricks have been used for thousands of years, and burning ...

AI Technical Summary

Problems solved by technology

[0003] However, most aerated concrete blocks have the following problems in the process of production and use: First, due to the addition of various industrial waste residues and lime and other raw materials in the preparation process of aerated concrete blocks, the blocks emit a pungent odor Odor, and has a certain degree of radioactivity, which will cause harm to the body of block production workers and installation workers. At the same time, it will still emit a pungent smell after being placed in the wall, resulting in poor indoor air quality; second, aerated concrete masonry After the block is put into the wall, it has no adsorption effect on the formaldehyde, benzene, ammonia and other toxic and harmful substances produced between the cement poured on its surface and the wall paint painted on the cement surface, resulting in these harmful substances in the wall. The indoor can not be dispersed for a long time, which seriously affects the health of the residents; third, because the ordinary aerated concrete block does not have antibacterial effect, it will cause a large number of bacteria in the wall due to the dark and humid environment or the water seepage of the outer wall. Breeding will cause mildew on the wall, and then produce germs that endanger the health of the indoor human body

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