Unlock instant, AI-driven research and patent intelligence for your innovation.

Process for producing air-entraining cement concrete block

A technology for concrete blocks and production processes, applied in manufacturing tools, applications, ceramic molding machines, etc., can solve problems such as affecting construction quality, high water absorption rate of blocks, and swelling due to moisture, so as to improve the quality of construction projects and reduce water absorption. The effect of convenient processing rate and processing procedure

Inactive Publication Date: 2004-12-29
江门天风墙体材料有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the rise of the air bubbles produced by the aerated aluminum powder, a micro-pore structure is formed. After cutting into the size of the block during the initial setting period, pores communicating with the outer surface of the block are formed, and because the main raw material is lime, it is an air-hard building. material, resulting in excessive water absorption of the block, moisture swelling, drying shrinkage, and loose surface, resulting in cracking, hollowing, or even falling off of the facing during construction, water seepage of the wall, etc., which brings inconvenience to the subsequent treatment process and affects Construction Quality

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
  • Process for producing air-entraining cement concrete block
  • Process for producing air-entraining cement concrete block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Put cement, sand with a particle size of 0.2mm-0.01mm, and water into a single-horizontal shaft double-speed mixer and stir at 48 rpm for 8-10 minutes. At the same time, inject a foaming agent with a concentration of 3% into the foamer, and then Fill the foamer with an appropriate amount of air that has been decompressed to 0.5Mpa to generate an appropriate amount of air bubbles with a diameter of 1-0.01mm, and then supply the foam to the well-stirred cement mortar, and mix the air bubbles evenly at 24 rpm. In the mortar, continue to stir for 3 minutes, remove excess and excessive air bubbles, discharge the material, put it into the mold, and send it to the primary steam curing tank. The autoclave was steamed for 7 hours under a pressure of 0.8Mpa, and the finished product was put into storage after passing the inspection.

Embodiment 2

[0020] Add cement, sand with a particle size of 0.2mm-0.01mm, and water into a single-horizontal shaft double-speed mixer and stir at 50 rpm for 6-8 minutes. At the same time, inject a foaming agent with a concentration of 2% into the foamer, and then Fill the foamer with an appropriate amount of air that has been decompressed to 0.4Mpa to generate an appropriate amount of air bubbles with a diameter of 2-0.01mm, and then supply the foam to the well-stirred cement mortar, and mix the air bubbles evenly at 20 rpm. In the mortar, continue to stir for 5 minutes, remove excess and excessive air bubbles, discharge the material, put it into the mold, and send it to the primary steam curing tank. The autoclave is steamed for 7 hours under a pressure of 1Mpa, and the finished product is put into storage after passing the inspection.

Embodiment 3

[0022] Add cement, sand with a particle size of 0.2mm-0.01mm, and water into a single-horizontal shaft double-speed mixer and stir at 60 rpm for 4-6 minutes. At the same time, inject a foaming agent with a concentration of 6% into the foamer, and then Fill the foamer with an appropriate amount of air that has been decompressed to 0.6Mpa to generate an appropriate amount of air bubbles with a diameter of 2-0.01mm, and then supply the foam to the well-stirred cement mortar, and mix the air bubbles evenly at 30 rpm. In the mortar, continue to stir for 10 minutes, discharge the excess and excessive air bubbles, put the material into the mold, and send it to the primary steam curing tank. The autoclave is steamed for 8 hours under a pressure of 1.2Mpa, and the finished product is put into storage after passing the inspection.

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

An aerated concrete building block is made of proportionally mixing raw materials, aerating, primary steam curing, demoulding, and steam curing. Its advantage is low hydroscopicity.

Description

technical field [0001] The invention relates to a production process of aerated cement concrete, in particular to a production process of an aerated cement concrete block used as a building wall material. Background technique [0002] At present, in order to protect land resources and ecological environment in our country, the use of red bricks, which were originally used as building wall materials, is gradually banned and replaced by prefabricated concrete blocks. Autoclaved aerated concrete blocks are light in weight, soundproof, and The advantages of better heat and fire resistance have become more and more popular. The traditional autoclaved aerated concrete block production process is to mix cement, sand, water, aerated aluminum powder, and lime in proportion, then ferment it to the initial setting stage, cut it into block size, put it into the steam-cured kettle, and steam-cure it Out of the kettle, the finished product goes into the warehouse. However, due to the ri...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B28B1/50C04B38/00
Inventor 钟赖安
Owner 江门天风墙体材料有限公司