Autoclaved light sand aerated concrete blocks, and preparation method thereof

A technology of aerated concrete and production process, which is applied in the directions of climate sustainability, other household appliances, sustainable waste treatment, etc., can solve the problem that sawing mud is not easy to deal with and pollute the environment, and achieves good sound insulation effect, healthy use and investment saving Effect

Inactive Publication Date: 2015-10-28
SHANDONG TONGDE BUILDING MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an autoclaved lightweight sand aerated concrete block and its production process, which solves the problem that the sawn mud is not easy to handle and pollutes the environment, and uses the discarded sawn mud as autoclaved light sand The raw material of air-entrained concrete blocks realizes the reuse of waste

Method used

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  • Autoclaved light sand aerated concrete blocks, and preparation method thereof
  • Autoclaved light sand aerated concrete blocks, and preparation method thereof
  • Autoclaved light sand aerated concrete blocks, and preparation method thereof

Examples

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Effect test

Embodiment 1

[0031] refer to figure 1 , an autoclaved lightweight sand aerated concrete block described in this specific embodiment, which is made of the following main materials by weight percentage and water, the main materials include saw mud: 69%; desulfurized gypsum: 3 %; quicklime: 13%; cement: 10%; aluminum powder: 0.5%.

[0032] The ratio of the water material to the main material is: 0.6.

[0033] A production process of an autoclaved lightweight sand aerated concrete block, comprising the following steps:

[0034] a. Quicklime and desulfurized gypsum are crushed and ball milled after entering the factory, and broken into particles with a particle size of ≤25mm, which are sent to the lime bin and desulfurized gypsum bin by the bucket elevator through the three-way slide for storage for use; quicklime and desulfurized gypsum particles The materials are fed through the respective speed-regulating belt scales, and enter the ball mill through the respective feeding sliders for mixin...

Embodiment 2

[0048] refer to figure 1 , an autoclaved lightweight sand aerated concrete block described in this specific embodiment, which is made of the following main materials by weight percentage and water, the main materials include saw mud: 71%; desulfurized gypsum: 4 %; quicklime: 14%; cement: 11%; aluminum powder: 0.5%.

[0049] 2. An autoclaved lightweight sand aerated concrete block as claimed in claim 1, wherein the ratio of the water material to the main material is 0.7.

[0050] 3. A production process of autoclaved lightweight sand aerated concrete block, characterized in that it comprises the following steps:

[0051] a. Quicklime and desulfurized gypsum are crushed and ball milled after entering the factory, and broken into particles with a particle size of ≤25mm, which are sent to the lime bin and desulfurized gypsum bin by the bucket elevator through the three-way slide for storage for use; quicklime and desulfurized gypsum particles The materials are fed through the re...

Embodiment 3

[0065] refer to figure 1 , an autoclaved lightweight sand aerated concrete block described in this specific embodiment, which is made by adding water to the main material in the following weight percentages, the main material includes saw mud: 74%; desulfurized gypsum: 4 %; quicklime: 16%; cement: 12%; aluminum powder: 0.6%.

[0066] The ratio of the water material to the main material is: 0.8.

[0067] A production process of an autoclaved lightweight sand aerated concrete block, comprising the following steps:

[0068] a. Quicklime and desulfurized gypsum are crushed and ball milled after entering the factory, and broken into particles with a particle size of ≤25mm, which are sent to the lime bin and desulfurized gypsum bin by the bucket elevator through the three-way slide for storage for use; quicklime and desulfurized gypsum particles The materials are fed through the respective speed-regulating belt scales, and enter the ball mill through the respective feeding sliders...

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Abstract

The invention relates to autoclaved light sand aerated concrete blocks. The autoclaved light sand aerated concrete blocks are prepared from water and a main material at a ratio of 0.6 to 0.8; the main material is prepared from, by weight, 64 to 78% of saw mud, 3 to 6% of desulfurized gypsum, 10 to 18% of quick lime, 8 to 14% of cement, and 0.4 to 0.7% of aluminium powder. A preparation method comprises following steps: quick lime and desulfurized gypsum are smashed, and are subjected to ball milling; saw mud is grinded; steel bar is subjected to treatment; an obtained material slurry, a cementing agent, and cement are stirred at a certain ratio; after pouring, moulds are delivered to a standing area for aeration and prehardening; an obtained product is subjecting to cutting; obtained green bodies are delivered into a still kettle for maintenance, and are subjected to separation, packaging, and conveying; and generated wastewater and waste materials are recycled. Beneficial effects of the autoclaved light sand aerated concrete blocks are that: thermal insulation properties are excellent; permeability resistance is excellent; shrinkage value is lower; the autoclaved light sand aerated concrete blocks are green and friendly to the environment, are safer, are excellent in sound insulation effect and machinability, and are economical.

Description

technical field [0001] The invention relates to an autoclaved light sand aerated concrete block and its production process, in particular to an autoclaved light sand aerated concrete block with saw mud as the main material and its production process. Background technique [0002] Autoclaved aerated concrete blocks are made by adding aluminum powder to the ingredients of calcareous and siliceous materials as an air-entraining agent, adding water to stir, pouring into shape, gas expansion, pre-curing and cutting, and then cured by high-pressure steam Porous silicate blocks. [0003] The stone processing industry in Baishi Town, Wenshang County is well developed. Processing stone will produce a large amount of sawing mud. The sawing mud floating in the air will easily cause great harm to the human respiratory tract; in heavy rain, the sawing mud will flow into the field with rainwater, which will easily cause crop production reduction. It is even urgent to solve the pollution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B18/12
CPCY02W30/91
Inventor 郭克新
Owner SHANDONG TONGDE BUILDING MATERIALS CO LTD
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