Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coal gangue-fly ash foam concrete

A technology of foam concrete and coal gangue powder, which is applied in the field of lightweight foam concrete, can solve the problems of low foam concrete strength, high cost of cementitious materials, and poor heat insulation performance, and achieve low cost, saving natural resources, and weather resistance good sex effect

Inactive Publication Date: 2008-05-21
CHONGQING UNIV
View PDF2 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing foam concrete mainly has the following shortcoming: (1) the mature cementitious material overwhelming majority that prepares foamed concrete at present is common cement, magnesia and magnesium chloride solution, and the cost of cementitious material is higher; (2) thermal conductivity Higher, generally 300~500kg / m 3 The thermal conductivity of foamed concrete is 0.08-0.186W / (m·K), and the heat insulation performance is not good; (3) the strength of foamed concrete is not high, 300-500kg / m 3 The foam concrete is difficult to meet the strength requirements of the wall material

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

[0019] The composition and weight percent of a kind of coal gangue-fly ash foam concrete are:

[0020] Calcined coal gangue powder 63.6% Class I fly ash 6.4%

[0021] Ordinary Portland cement 10% quicklime 17.5%

[0022] Ordinary building plaster 2% Ground filler 0%

[0023] Foaming agent 0.5%.

Embodiment 2

[0025] The composition and weight percent of a kind of coal gangue-fly ash foam concrete are:

[0026] Calcined coal gangue powder 0.6% Class II fly ash 29.4%

[0027] Ordinary Portland Cement 30% Quicklime 30%

[0028] Ordinary building plaster 9% Ground filler 0%

[0029] Blowing agent 1.0%.

Embodiment 3

[0031] The composition and weight percent of a kind of coal gangue-fly ash foam concrete are:

[0032] Calcined gangue powder 52.5% Class III fly ash 7.5%

[0033] Ordinary Portland cement 20% quicklime 5%

[0034] Ordinary building plaster 3% Ground fine sand filler 10.5%

[0035] Blowing agent 1.5%.

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
densityaaaaaaaaaa
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to View More

Abstract

A coal gangue-fly ash foam concrete relates to lightweight foam concrete. The invention is composed of coal gangue, fly ash, cement, lime, gypsum, filler and foaming agent. The invention utilizes coal gangue and fly ash industrial waste, which not only reduces product cost but also saves natural resources, and its product also has low cost, high strength, low thermal conductivity, good heat insulation performance, and can be directly plastered after masonry, etc. features. Therefore, the product of the present invention can be widely used in the single thermal insulation wall body (body of wall self-insulation and heat insulation) of outer wall, the internal and external partition wall of frame structure, the rear board wall of large closet; Inner wall of cold storage; thermal insulation layer of floor and roof; thermal insulation board.

Description

technical field [0001] The invention belongs to the technical field of lightweight building materials, in particular to lightweight foamed concrete. Background technique [0002] With the implementation of my country's wall reform and building energy-saving policies, the materials used in modern buildings are required to have properties such as light weight, high strength, heat preservation, heat insulation, waste utilization, and energy saving. Foamed concrete, as a new type of building material, possesses the above-mentioned properties and is widely used in modern construction projects. Existing foam concrete, as publication number is CN1824623A " foam concrete material and application thereof " patent, disclosed component and proportioning are: inorganic cementitious material cement: filler stone powder or mineral powder: blowing agent: the weight ratio of water is 30-60: 30-60: 0.5-2: 20-50. Another example is the "non-steam-cured foam concrete slab" patent with the pu...

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): C04B28/04C04B18/08C04B22/14C04B14/30C04B14/06
CPCC04B28/02Y02W30/91C04B18/08C04B18/12C04B22/064C04B22/143C04B38/02
Inventor 俞心刚李德军龚毅王洪飞李月香田学春
Owner CHONGQING UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com