Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Novel autoclaved fly ash self-insulation wall material and production process

A technology for wall materials and production processes, applied in the field of building materials, can solve problems such as poor fire resistance and durability, and achieve the effects of energy saving, significant thermal insulation effect, and good seismic performance.

Inactive Publication Date: 2010-12-15
河南省建筑科学研究院有限公司
View PDF1 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of poor fireproof performance and durability of the external thermal insulation wall of the external wall, the purpose of the present invention is to provide a new type of self-insulation wall material with light bulk density, good seismic performance, and remarkable thermal insulation effect; the present invention Another object is to provide a production process of a new type of self-insulating wall material with simple preparation process, low energy consumption, convenient construction, reduced engineering cost, and significant economic benefits. Coal ash, achieve waste utilization, save energy

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment one: weigh by following raw material (unit: kilogram)

[0015] Cement 700, lime 18, gypsum 4, fly ash 55, light silica powder 15, aluminum powder 0.1, sodium metasilicate 0.1, methylsulfonate naphthalene polymer 0.8;

[0016] The preparation process follows the steps

[0017] When the water temperature is controlled at 50°C, add gypsum, light silica powder, fly ash, cement, and lime in sequence. The weight-to-material ratio of water to each raw material is: water: cement = 0.75, stir for 28 minutes until uniform, and then add aluminum powder , sodium metasilicate and naphthalene methylsulfonate polymer and then stirred for 30s evenly, when the slump is 23cm, pour the prepared slurry into a mold of a certain size, the pouring temperature is 45°C, and let it stand for 15 minutes to generate gas , when the green body completes the initial setting and has a certain strength, the mold can be removed and cut to make it meet the appearance size requirements; finall...

Embodiment 2

[0018] Embodiment two: weigh by following raw material (unit: kilogram)

[0019] Cement 10, lime 15, gypsum 3, fly ash 45, light silica powder 24.3, aluminum powder 0.25, sodium metasilicate 0.4, methylsulfonate naphthalene polymer 1.5;

[0020] The preparation process follows the steps

[0021] When the water temperature is controlled at 34°C, add gypsum, light silica powder, fly ash, cement, and lime in sequence; the weight ratio of water to each raw material is: water: cement = 0.9, stir for 28 minutes until uniform, and then add aluminum powder , sodium metasilicate and naphthalene methylsulfonate polymer and then stirred for 50s evenly, when the slump is 29cm, pour the prepared slurry into a mold of a certain size, the pouring temperature is 35°C, and let it stand for 30 minutes to generate gas , when the green body completes the initial setting and has a certain strength, the formwork can be removed and cut to make it meet the appearance size requirements; finally, the ...

Embodiment 3

[0022] Embodiment three: weigh by following raw material (unit: kilogram)

[0023] Cement 8, lime 20, gypsum 2, pulverized coal 48.83, light silica powder 20, aluminum powder 0.15, sodium metasilicate 0.2, and naphthalene methylsulfonate polymer 1.

[0024] The preparation process follows the steps

[0025] When the water temperature is controlled at 40°C, add gypsum, light silica powder, fly ash, cement, and lime in sequence; the weight-to-material ratio of water to each raw material is: water: cement = 0.8, stir for 20 minutes until uniform, and then add aluminum powder , sodium metasilicate and naphthalene methylsulfonate polymer and then stirred for 30s evenly, when the slump is 26cm, inject the prepared slurry into a mold of a certain size, and let it stand for 55 minutes to generate gas. When it is condensed and has a certain strength, it can be disassembled and cut to make it meet the requirements of appearance size; finally, put the finished block body into a steam cu...

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
thermal conductivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a novel autoclaved fly ash self-insulation wall material and a production process. The wall material is produced by adding water into raw materials, mixing, pouring, forming gas, standing, hardening, cutting and autoclaved curing. The wall material is characterized by comprising the following raw materials in percentage by weight: 7 to 10 percent of cement, 15 to 25 percent of lime, 2 to 4 percent of gypsum, 45 to 55 percent of fly ash, 8 to 25 percent of lightweight silicon dioxide micro powder, 0.1 to 0.25 percent of gas forming agent, 0.1 to 0.4 percent of foam stabilizer and 0.8 to 1.5 percent of admixture; the pouring temperature is between 30 and 45 DEG C, and the water temperature is controlled to be between 34 and 50 DEG C; and during steam curing, steam is injected to perform curing for 10 to 15 hours, the temperature in a kettle is kept between 160 and 180 DEG C, and the pressure in the kettle reaches 0.8 to 1.4MPa. The heat conductivity factor of the wall material can reach below 0.9W / (mk), and the compressive strength of the wall material is remarkably improved compared with a B04-grade building block. The wall material can well utilize the fly ash, utilize wastes, save energy, be in accordance with national energy-saving policy and meet national standard for 65 percent energy efficiency, and is an ideal novel energy-saving wall material.

Description

Technical field: [0001] The invention relates to a building material, in particular to a novel autoclaved fly ash self-insulating wall material and a production process. Background technique: [0002] At present, with the increasing shortage of energy, the global trend of energy conservation and emission reduction has taken shape. Governments of various countries have introduced policies and measures for energy conservation and emission reduction, and actively encouraged the implementation of new energy and new material projects. All parts of our country have generally implemented the building energy-saving standard of 50% energy saving, and some areas have implemented the 65% energy-saving standard. standard. These put forward higher requirements for my country's building energy conservation. In recent years, new buildings have generally adopted structural measures for external wall insulation, and EPS boards have been used as external wall insulation materials. However,...

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 Applications(China)
IPC IPC(8): C04B28/10
CPCC04B2111/28C04B2201/32C04B28/18Y02W30/91C04B7/02C04B12/04C04B18/08C04B18/146C04B22/04C04B22/143C04B38/02C04B40/0082C04B40/024C04B40/0259C04B40/0263C04B2103/48
Inventor 杨彦芳汪天舒李云龙赵勇刚吴全成刘钟安钱伟
Owner 河南省建筑科学研究院有限公司
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
Eureka Blog
Learn More
PatSnap group products