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Autoclaved aerated concrete cut block and process thereof

An autoclaved air-entraining and concrete technology, applied in the field of concrete blocks, can solve the problem of low strength, and achieve the effects of strong gripping force, good mixing uniformity, and strong humidity change ability.

Inactive Publication Date: 2018-03-23
JIANGSU CHENGGONG CONSTR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of autoclaved aerated concrete block and its technology, to solve the problem of low strength in the above-mentioned background technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An autoclaved aerated concrete block, consisting of the following components by weight: cement: 25 parts, gypsum: 5 parts, aluminum powder: 4 parts, ethylene glycol: 5 parts, fly ash: 30 parts, alkali-resistant glass fiber : 15 parts, naphthalenesulfonate polymer: 3 parts, water: 50 parts and sodium chloride: 6 parts, and the mass fraction of silicon dioxide in the fly ash is 65%.

[0022] Its process includes the following steps:

[0023] S1: Liquid mixing: Put ethylene glycol, water reducer, water and admixture into the mixer and mix evenly;

[0024] S2: stirring: adding cement, gypsum and fly ash to the mixed liquid in step S1, stirring at 300r / min for 30min;

[0025] S3: mixing: adding alkali-resistant glass fiber to the mixture in step S2, and slowly adding in the process of stirring;

[0026] S4: Foaming: Add aluminum powder to the mixture in step S3 at a temperature of 30°C and stir evenly;

[0027] S5: pouring: pouring the foam in step S4 into a mold at a tem...

Embodiment 2

[0032] An autoclaved aerated concrete block, consisting of the following components by weight: cement: 35 parts, gypsum: 15 parts, aluminum powder 7 parts, ethylene glycol: 10 parts, fly ash: 40 parts, alkali-resistant glass fiber : 25 parts, naphthalenesulfonate polymer: 5 parts, water: 70 parts and sodium chloride: 10 parts, the mass fraction of silicon dioxide in the fly ash is 75%.

[0033] Its process includes the following steps:

[0034] S1: Liquid mixing: Put ethylene glycol, water reducer, water and admixture into the mixer and mix evenly;

[0035] S2: stirring: adding cement, gypsum and fly ash to the mixed liquid in step S1, stirring at 400r / min for 40min;

[0036] S3: mixing: adding alkali-resistant glass fiber to the mixture in step S2, and slowly adding in the process of stirring;

[0037] S4: Foaming: Add aluminum powder to the mixture in step S3 at a temperature of 40°C and stir evenly;

[0038] S5: pouring: pouring the foam in step S4 into a mold at a tempe...

Embodiment 3

[0043] An autoclaved aerated concrete block, consisting of the following components by weight: cement: 30 parts, gypsum: 10 parts, aluminum powder: 6 parts, ethylene glycol: 7 parts, fly ash: 35 parts, alkali-resistant glass Fiber: 20 parts, naphthalene sulfonate polymer: 4 parts, water: 60 parts and sodium chloride: 8 parts, and the mass fraction of silicon dioxide in the fly ash is 70%.

[0044] Its process includes the following steps:

[0045] S1: Liquid mixing: Put ethylene glycol, water reducer, water and admixture into the mixer and mix evenly;

[0046] S2: stirring: adding cement, gypsum and fly ash to the mixed liquid in step S1, stirring at 350r / min for 35min;

[0047] S3: mixing: adding alkali-resistant glass fiber to the mixture in step S2, and slowly adding in the process of stirring;

[0048] S4: Foaming: Add aluminum powder to the mixture in step S3 at a temperature of 35°C and stir evenly;

[0049] S5: pouring: pouring the foam in step S4 into a mold at a te...

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Abstract

The invention discloses an autoclaved aerated concrete cut block. The autoclaved aerated concrete cut block is composed of the following components in parts by weight: 25 to 35 parts of cement, 5 to 15 parts of gypsum, 4 to 7 parts of aluminum powder, 5 to 10 parts of glycol, 30 to 40 parts of fly ash, 15 to 25 parts of alkali-resistant glass fiber, 3 to 5 parts of a water reducing agent, 50 to 70parts of water and 6 to 10 parts of an additive. The process comprises the following steps: S1, liquid mixing; S2, stirring; S3, mixing; S4, foaming; S5, pouring; S6, shaping; S7, cutting; and S8, autoclaving. According to the invention, through addition of the alkali-resistant glass fiber and the fly ash, uniform mixing of the alkali-resistant glass fiber is promoted; the glycol can also exert the effect of uniform dispersion; meanwhile, the alkali-resistant glass fiber is easy to wind into a cluster during mixing; thus, the alkali-resistant glass fiber is slowly added under stirring in thestep S3, so the probability of the alkali-resistant glass fiber winding into a cluster is reduced, and facilitation of uniform mixing is realized at the same time.

Description

technical field [0001] The invention relates to the technical field of concrete blocks, in particular to an autoclaved aerated concrete block and a process thereof. Background technique [0002] Autoclaved air-entrained concrete block air-generating agent, also known as air-entraining agent, is the key material for manufacturing air-entrained concrete. Most of the gas-generating agent is degreased aluminum powder. The aluminum powder mixed into the slurry produces a chemical reaction under alkaline conditions: the aluminum powder is extremely fine, and the hydrogen generated forms many small bubbles, which remain in the rapidly solidified concrete. These large numbers of evenly distributed small air bubbles make the aerated concrete block have many excellent properties. There are many air bubbles inside the steamed concrete block, so it is lighter and more popular. However, there is also a problem that the strength is not high enough. For this reason, we have invented an a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B38/02C04B111/40
CPCC04B28/14C04B38/02C04B2111/40C04B7/00C04B22/04C04B24/02C04B18/08C04B14/44C04B2103/302C04B22/124
Inventor 王建新徐方磊蒋晓曙
Owner JIANGSU CHENGGONG CONSTR TECH
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