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Recycled powder autoclaved aerated concrete formula system capable of uniformly stirring

A technology of autoclaved gas filling and uniform mixing, applied in the field of concrete, which can solve the problems of low environmental protection and achieve the effect of increasing environmental protection and improving utilization rate

Pending Publication Date: 2022-04-08
重庆重通成飞新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the Chinese patent with publication number CN111995284A, a concrete formula is proposed, which has the advantages of good workability, good compressive strength and good frost resistance. In this concrete formula, more traditional cement powder is used. The cement made of coal ash is not mixed with recycled raw materials, so the environmental protection is low. Therefore, we propose a recycled powder autoclaved aerated concrete formula system that is evenly stirred

Method used

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  • Recycled powder autoclaved aerated concrete formula system capable of uniformly stirring
  • Recycled powder autoclaved aerated concrete formula system capable of uniformly stirring
  • Recycled powder autoclaved aerated concrete formula system capable of uniformly stirring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Such as Figure 1-Figure 7 As shown, a uniformly stirred recycled powder autoclaved aerated concrete formula system, the recycled powder autoclaved aerated concrete formula includes the following components:

[0060] Cement with a mass ratio of 13%;

[0061] 7% lime by mass;

[0062] 5% gypsum by mass;

[0063] Aluminum powder paste with a mass ratio of 0.9%;

[0064] 3% waste by mass;

[0065] The mass accounts for 72% fly ash;

[0066] Recycled fan blades with a mass ratio of 0%.

[0067] The cement adopts P O 42.5 cement ordinary Portland cement, the fineness is to pass through a 0.075mm sieve, and the sieve residue is 1.2%. The P O 42.5 cement ordinary Portland cement is made of materials with the following components:

[0068] 21.66% SiO by mass 2 ;

[0069] 16.93% Al by mass 2 o 3 ;

[0070] The mass ratio is 53.62% CaO.

[0071] Lime is a large piece of burned limestone in the stockyard, smashed and then finely ground and pulverized by a lime mill. The ...

Embodiment 2

[0097] Such as Figure 1-Figure 7 As shown, a uniformly stirred recycled powder autoclaved aerated concrete formula system, the recycled powder autoclaved aerated concrete formula includes the following components:

[0098] Cement with a mass ratio of 13%;

[0099] 7% lime by mass;

[0100] 5% gypsum by mass;

[0101] Aluminum powder paste with a mass ratio of 0.9%;

[0102] 3% waste by mass;

[0103] The mass proportion is 64.8% fly ash;

[0104] Recycled wind blades with a mass ratio of 7.2%.

[0105] The cement adopts P O 42.5 cement ordinary Portland cement, the fineness is to pass through a 0.075mm sieve, and the sieve residue is 1.2%. The P O 42.5 cement ordinary Portland cement is made of materials with the following components:

[0106] 21.66% SiO by mass 2 ;

[0107] 16.93% Al by mass 2 o 3 ;

[0108] The mass ratio is 53.62% CaO.

[0109] Lime is a large piece of burned limestone in the stockyard, smashed and then finely ground and pulverized by a lime mi...

Embodiment 3

[0135] Such as Figure 1-Figure 7 As shown, a uniformly stirred recycled powder autoclaved aerated concrete formula system, the recycled powder autoclaved aerated concrete formula includes the following components:

[0136] Cement with a mass ratio of 13%;

[0137] 7% lime by mass;

[0138] 5% gypsum by mass;

[0139] Aluminum powder paste with a mass ratio of 0.9%;

[0140] 3% waste by mass;

[0141] The mass proportion is 57.6% fly ash;

[0142] Recycled wind blades with a mass ratio of 14.4%.

[0143] The cement adopts P O 42.5 cement ordinary Portland cement, the fineness is to pass through a 0.075mm sieve, and the sieve residue is 1.2%. The P O 42.5 cement ordinary Portland cement is made of materials with the following components:

[0144] 21.66% SiO by mass 2 ;

[0145]16.93% Al by mass 2 o 3 ;

[0146] The mass ratio is 53.62% CaO.

[0147] Lime is a large piece of burned limestone in the stockyard, smashed and then finely ground and pulverized by a lime mi...

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Abstract

The invention relates to a system for uniformly stirring a recycled powder autoclaved aerated concrete formula in the technical field of concrete. The recycled powder autoclaved aerated concrete formula comprises the following materials in percentage by mass: 13% of cement; lime with a mass ratio of 7%; gypsum with a mass ratio of 5%; aluminum powder paste with a mass ratio of 0.9%; a waste material with a mass ratio of 3%; fly ash with a mass ratio of 36%-72%; the mass ratio of the fan blade recycled material is 0-36%. Part of fly ash and part of third-grade sand are replaced with the fan blade recycled material, the strength requirement of a concrete test block can be met, the utilization rate of the fan blade recycled material can be increased, the environmental protection property of concrete is improved, when the fly ash is selected as a siliceous material, the strength of an AAC product is reduced along with increase of the mixing amount of the wind power blade recycled powder, and the service life of the AAC product is prolonged. The strength of the AAC product is increased along with the increase of the dry material amount, and when the siliceous material is sand, the strength of the AAC product is increased along with the increase of the mixing amount of the recovered powder of the wind power blade.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a uniformly stirred recycled powder autoclaved aerated concrete formulation system. Background technique [0002] Concrete refers to the collective name of engineering composite materials that use cementitious materials to cement aggregates into a whole. The term concrete usually refers to the use of cement as cementitious material, sand and stone as aggregates, and water (may contain additional Agents and admixtures) are mixed in a certain proportion and the cement concrete is obtained by stirring. [0003] In the Chinese patent with publication number CN111995284A, a concrete formula is proposed, which has the advantages of good workability, good compressive strength and good frost resistance. In this concrete formula, more traditional cement powder is used. The cement made of coal ash is not mixed with recycled raw materials, which is low in environmental protection. Therefo...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/04C04B38/02C04B111/40
CPCY02W30/91
Inventor 袁炜曹振涛刘超
Owner 重庆重通成飞新材料有限公司
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