Lightweight autoclaved foam concrete block and production method thereof

A foam concrete and autoclaved technology, which is applied in the field of light-weight and energy-saving building wall materials, can solve the problems of poor performance such as waterproof and heat insulation, large amount of cement, and high production costs, and achieve excellent anti-permeability performance, reduce raw material costs, The effect of weight reduction

Inactive Publication Date: 2013-04-17
天津市裕川微生物制品有限公司
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the energy-saving wall material widely used in the market is autoclaved aerated concrete block, but it uses aluminum powder to generate gas, so that the internal pores are partially connected, resulting in its waterproof and

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lightweight autoclaved foam concrete block and production method thereof
  • Lightweight autoclaved foam concrete block and production method thereof
  • Lightweight autoclaved foam concrete block and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0034] Example 1:

[0035] A lightweight autoclaved foam concrete block, obtained by the following steps:

[0036] (1) Configure production raw materials and mix and stir.

[0037] The composition of raw materials per cubic meter is: Ordinary Portland cement 57.75kg of strength grade 42.5, specific surface area of ​​380-420m 2 / kg of blast furnace slag powder 96.25kg, quartz sand 57.75kg, marble chips 115.5kg, power plant slag 57.75kg, accelerator thickener 0.8kg, water 192.5kg, microbial protein foaming agent (Tianjin Yuchuan Microbial Products Co., Ltd. YCM20 type) 1.2kg. Among them, marble chips, quartz sand and power plant slag are ground with a ball mill to a fineness of 0.080mm; the coagulant thickener is composed of aluminum sulfate and soda ash, and aluminum sulfate accounts for 50% of the total mass of the coagulant thickener. The percentage of the total mass of accelerator and thickener is 50%;

[0038] (2) Pump the mixed and stirred slurry in step (1) into the mold for fo...

Example Embodiment

[0046] Example 2:

[0047] A lightweight autoclaved foam concrete block, obtained by the following steps:

[0048] (1) Configure the production raw materials and mix and stir.

[0049] The composition of raw materials per cubic meter: 72kg of ordinary Portland cement with a strength grade of 42.5, and a specific surface area of ​​380-420m 2 / kg of blast furnace slag powder 120kg, grade II fly ash 288kg, accelerator thickener 1.2kg, water 240kg, microbial protein foaming agent (Tianjin Yuchuan Microbial Products Co., Ltd. YCM20 type) 1.0kg; among them, accelerator The thickener is composed of aluminum sulfate and soda ash. Aluminum sulfate accounts for 50% of the total mass of the accelerator and thickener, and soda ash accounts for 50% of the total mass of the accelerator;

[0050] (2) Pump the mixed and stirred slurry in step (1) into the mold for forming;

[0051] (3) Steam curing for 3 hours at a temperature of 65°C;

[0052] (4) Cutting;

[0053] (5) Under the conditions of steam pre...

Example Embodiment

[0059] Example 3:

[0060] A lightweight autoclaved foam concrete block, obtained by the following steps:

[0061] (1) Configure the production raw materials and mix and stir.

[0062] The composition of raw materials per cubic meter: 87kg of ordinary Portland cement with a strength grade of 42.5 and a specific surface area of ​​380-420m 2 / kg of blast furnace slag powder 145kg, Ⅱ grade fly ash 348kg, accelerator thickener 1.6kg, water 290kg, microbial protein foaming agent (Tianjin Yuchuan Microbial Products Co., Ltd. YCM20 type) 0.8kg; among them, accelerator The thickener is composed of aluminum sulfate and soda ash. Aluminum sulfate accounts for 50% of the total mass of the accelerator and thickener, and soda ash accounts for 50% of the total mass of the accelerator;

[0063] (2) Pump the mixed and stirred slurry in step (1) into the mold for forming;

[0064] (3) Steam curing for 2.5 hours at a temperature of 75°C;

[0065] (4) Cutting;

[0066] (5) Under the conditions of steam pre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Specific surface areaaaaaaaaaaa
Specific surfaceaaaaaaaaaa
Login to view more

Abstract

The invention provides a lightweight autoclaved foam concrete block and a production method thereof. The block comprises production raw materials of a dry material, water and foaming agent, wherein the dry material consists of the following components in percentage by mass: 9-15 percent of ordinary Portland cement, 20-30 percent of blast furnace slag micro-powder, 55-65 percent of aggregate and 0.2-1 percent of coagulating thickener; the coagulating thickener comprises aluminum sulfate and soda ash; the aluminum sulfate is 50 percent of the total mass of the coagulating thickener; the soda ash is 50 percent of the total mass of the coagulating thickener; the mass ratio of the water to the dry material is 0.4-0.6; and 0.8-1.6 kg foaming agent is used in each cubic meter of mixture of the water and the dry material. The block and the method have the benefit that the foaming agent of foam concrete is applied in the production technique of an aerated concrete block, so that the problems of weak strength, large air shrinkage, easiness in surface pulverization and the like in the foam concrete are solved. As the cement dosage of the foam concrete is reduced, the raw material cost is effectively reduced, and the social benefits of waste utilization and environmental friendliness are achieved.

Description

technical field [0001] The invention belongs to the field of lightweight energy-saving building wall materials, and in particular relates to a lightweight autoclaved foam concrete block and a production method thereof. Background technique [0002] At present, the energy-saving wall material widely used in the market is autoclaved aerated concrete block, but it uses aluminum powder to generate gas, so that the internal pores are locally connected, resulting in its waterproof and heat insulation performance compared with that of the foam using physical foaming. Concrete has poor performance. However, the production strength of traditional foam concrete blocks is low, the amount of cement is large, and the production cost is high. Contents of the invention [0003] The problem to be solved by the present invention is to provide a lightweight autoclaved foam concrete block and its production method, which is especially suitable for reducing the amount of cement in raw materi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B28/04
Inventor 薛咏海左健刘成林
Owner 天津市裕川微生物制品有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap