Autoclaved aerated concrete slab and manufacturing process thereof

An aerated concrete slab and aerated concrete technology, which is applied in the field of building materials, can solve the problem that the bonding strength of the aerated concrete slab and the reinforced mesh sheet is not high, the comprehensive performance level of the aerated concrete slab is not high, and the mechanical properties of the concrete slab are reduced. and other problems, to achieve the effect of improving comprehensive mechanical properties, improving comprehensive mechanical properties, and reducing tensile stress

Pending Publication Date: 2020-08-25
安徽铭科新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: a large amount of raw materials are used in the preparation process of the aerated concrete slab, and the leftover materials are not effectively utilized, and the level of comprehensive performance of the aerated concrete slab is not high, and the gap between the aerated concrete slab and the steel mesh sheet The bonding strength is not high, thus reducing the mechanical properties of the concrete slab

Method used

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  • Autoclaved aerated concrete slab and manufacturing process thereof
  • Autoclaved aerated concrete slab and manufacturing process thereof

Examples

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Embodiment 1

[0044] refer to figure 2 , is an autoclaved aerated concrete slab disclosed by the present invention, which is made of the following raw materials in parts by weight: 45 parts of quicklime, 42 parts of cement, 0.6 part of air-generating agent, 140 parts of mortar, 65 parts of waste slurry; the concrete slab is pre-embedded with reinforcement mesh 3 parallel to it.

[0045] Wherein, the length and width of the reinforced mesh sheet 3 and the aerated concrete slab are the same, and the thickness of the aerated concrete slab is 10-30 cm. The mortar is prepared by mixing and stirring the following raw materials in parts by weight: 10-12 parts of sand, 4-5 parts of gypsum, 9-11 parts of cement, 3-5 parts of fly ash, and 25-30 parts of water. The waste slurry is made by uniformly mixing the leftover material after the cutting process of the concrete slab and water, and the water accounts for 50-60% of the total mass of the mixture. The gas generating agent is selected from one or...

Embodiment 2

[0047] refer to figure 1 , 2 , is a kind of manufacturing process of the autoclaved aerated concrete slab disclosed by the present invention, carries out according to the following process steps:

[0048] S1. Preparation of slurry: All the raw materials for making the mortar are added to the slurry transition pit according to the above weight parts, and the agitator installed in the slurry transition pit is stirred at a speed of 350-400r / min, and it is prepared after stirring evenly The mortar is continuously stirred at a speed of 200-250r / min to maintain the fluidity of the mortar; the leftovers and water after the concrete slab cutting process are sent to the waste slurry transition pit, and the agitator installed in the waste slurry transition pit is 300-350r Stir at a speed of 180-230r / min to keep the fluidity of the waste slurry;

[0049] S2. Preparation of air-entrained concrete: Put the waste slurry, mortar, quicklime, cement, and air-generating agent prepared in step...

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Abstract

The invention relates to an autoclaved aerated concrete slab and a manufacturing process thereof. The autoclaved aerated concrete slab is prepared from the following raw materials in parts by weight:40-50 parts of quick lime; 40-44 parts of cement; 0.4-0.8 part of a foaming agent; 120-160 parts of mortar; and 50-80 parts of waste slurry. Reinforcing meshes parallel to the concrete slab are pre-buried in the concrete slab. The manufacturing process of the autoclaved aerated concrete slab comprises the steps of slurry preparation, aerated concrete preparation, aerated concrete pouring, aeratedconcrete briquette cutting, autoclaved curing, detection and packaging. The autoclaved aerated concrete slab obtained through autoclaved curing has good physical and chemical properties, and the comprehensive mechanical properties of the concrete slab are improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an autoclaved aerated concrete slab and a manufacturing process thereof. Background technique [0002] At present, the autoclaved aerated concrete slab is a green and environmentally friendly building material made of cement, lime, silica sand, etc., and then treated with high temperature, high pressure, and steam to form an autoclaved aerated concrete slab with porous crystals. Its density is smaller than that of ordinary cementitious materials, and it has good fire resistance, fire prevention, sound insulation, heat insulation, heat preservation and other properties. [0003] The existing publication number is CN108314396A Chinese invention patent application discloses a production method of an autoclaved aerated concrete slab and an autoclaved aerated concrete slab. The concrete slurry is poured and formed with a steel mesh as a skeleton to obtain a concrete slab em...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B40/02B28B1/50B28B13/02B28B23/02B28B11/12B28B11/14B28B11/24
CPCB28B1/503B28B11/12B28B11/14B28B11/245B28B13/02B28B23/02C04B28/14C04B40/024C04B7/00C04B2/02C04B14/06C04B18/08C04B18/167C04B22/068C04B22/04C04B38/02C04B32/02
Inventor 杨小鹏余选清
Owner 安徽铭科新材料科技有限公司
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