Autoclaved aerated concrete block using ceramic polishing waste and its preparation method

A technology of ceramic polishing waste and concrete blocks, which is applied in the direction of ceramic molding machines and manufacturing tools, and can solve the problems of affecting the hydration of micropowder, the decrease of concrete strength, and the decrease of relative concentration

Active Publication Date: 2017-04-19
丁捷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that the hydration of ceramic waste micropowder requires Ca(OH) produced by cement hydration 2 As a basic activator, when the amount of fine powder is too high, Ca(OH) 2 The relative concentration decreases, which affects the hydration of the micropowder, resulting in a decrease in the strength of concrete

Method used

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  • Autoclaved aerated concrete block using ceramic polishing waste and its preparation method
  • Autoclaved aerated concrete block using ceramic polishing waste and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] One, the preparation of surface-treated ceramic polishing waste b):

[0091]The silane coupling agent gamma-aminopropyltriethoxysilane (or the aqueous solution form with 10wt% concentration) of 1.0kg is sprayed to the ceramic polishing waste dry powder (average particle size 0.21mm) of 100kg under high-speed stirring state , stir and disperse at high speed for 15-20 minutes, and then heat the mixture to 50-60° C. to obtain b) surface-treated ceramic polishing waste fine powder (average particle size 0.21 mm).

[0092] 2. Preparation of blocks

[0093] The consumption or proportioning (according to parts by weight) of the raw material that adopts is:

[0094] a) 500kg of ceramic polishing waste (taken from a ceramic factory in Foshan, with an average particle size of 0.06mm);

[0095] b) Surface treated ceramic polishing waste fine powder 70kg;

[0096] c) Fine sand (grain size: 60 mesh, 0.3mm) 80kg;

[0097] d) quicklime 200kg;

[0098] e) Cement (425#) 150kg;

[...

Embodiment 2

[0120] Repeat embodiment 1, just the consumption or proportioning (according to parts by weight) of the raw material that adopts is:

[0121] The consumption or proportioning (according to parts by weight) of the raw material that adopts is:

[0122] a) 500kg of ceramic polishing waste (taken from a ceramic factory in Foshan);

[0123] b) Surface-treated ceramic polishing waste fine powder 85kg;

[0124] c) Fine sand (particle size: 60 mesh, 0.3mm) 72kg;

[0125] d) quicklime 210kg;

[0126] e) Cement (425#) 160kg;

[0127] f) Aluminum powder (Foshan Junli Aerated Aluminum Paste Factory, GLS-65 aluminum powder) 0.5kg;

[0128] g) Silica fume (Shanghai Tiankai Silica Fume Material Co., Ltd., 920 type) 50kg;

[0129] h) rubber powder (synthetic styrene-butadiene rubber waste tire powder, average particle size 350um) 30kg;

[0130] i) 45 kg of hemihydrate gypsum; and

[0131] j) Water reducer (Hunan Pioneer Building Materials Co., Ltd., Dingli brand XF type): 20kg;

[013...

Embodiment 3

[0138] Repeat embodiment 1, just the consumption or proportioning (according to parts by weight) of the raw material that adopts is:

[0139] a) 500kg of ceramic polishing waste (taken from a ceramic factory in Foshan);

[0140] b) Surface-treated ceramic polishing waste fine powder 85kg;

[0141] c) Fine sand (particle size: 60 mesh, 0.3mm) 72kg;

[0142] d) quicklime 210kg;

[0143] e) Cement (425#) 160kg;

[0144] f) Aluminum powder (Foshan Junli Aerated Aluminum Paste Factory, GLS-65 aluminum powder) 0.5kg;

[0145] g) Silica fume (Shanghai Tiankai Silica Fume Material Co., Ltd., 920 type) 50kg;

[0146] h) rubber powder (synthetic styrene-butadiene rubber waste tire powder, average particle size 350um) 30kg;

[0147] i) 45 kg of hemihydrate gypsum; and

[0148] j) Water reducer (Hunan Pioneer Building Materials Co., Ltd., Dingli brand XF type): 20kg;

[0149] k) Slag powder: 42kg;

[0150] The finished blocks are inspected according to the national standard GB 119...

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Abstract

The invention discloses an autoclaved aerated concrete building block.The building block is prepared from, by weight, ceramic polishing waste, ceramic polishing waste fine powder subjected to surface treatment, fine sand, quick lime, cement, aluminum powder, micro-silicon powder, rubber powder, semi-hydrated gypsum and a water reducer through the steps of adding water for pulping and conducting pouring, curing and autoclaved maintenance.The ceramic polishing waste fine powder subjected to surface treatment is obtained by conducting surface modification of the ceramic polishing waste dried powder through a silane coupling agent containing amino.The invention further discloses a preparation method of the autoclaved aerated concrete building block.The method includes the first step of preparing cement slurry A, the second step of preparing a foaming agent solution B, the third step of preparing mixed cement slurry-shaped foamed concrete C, the fourth step of shaping by pouring and the fifth step of autoclaved maintenance.

Description

technical field [0001] The invention relates to a lightweight building wall-autoclaved aerated concrete block and a preparation method thereof, in particular to an autoclaved aerated concrete block (lightweight brick) made of ceramic polishing waste as the main raw material and its preparation method. Background technique [0002] At present, in the production process of building ceramic flat tiles, three major pollutions are mainly produced: waste water, waste gas and solid waste. Among them, the solid waste is mainly the (fine powder, wet) waste generated by the grinding and polishing process in the process of manufacturing ceramic flat tiles - collectively referred to as ceramic polishing waste. A general-scale ceramic tile factory produces more than 100 tons of polishing waste a day. [0003] In the current ceramic industry, dozens of enterprises are often concentrated in one industrial area, and more than one thousand tons of ceramic polishing waste are produced every...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/02C04B28/14B28B1/50B28B11/24
CPCB28B1/50B28B11/245C04B28/14C04B18/165C04B14/06C04B7/34C04B7/02C04B14/062C04B22/04C04B24/28C04B2103/302C04B38/02
Inventor 丁捷
Owner 丁捷
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