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

Method for preparing special plastering mortar for self-energy-saving air-entrained concrete wall material

A technology for air-entrained concrete and plastering mortar, applied in clay preparation devices, mixing operation control, chemical instruments and methods, etc., can solve problems such as hollowing of air-entrained concrete plastering layer, hindering the development of air-entrained concrete, cracking, etc., to achieve Reduce delamination, superior performance, improve the effect of bond strength

Inactive Publication Date: 2011-05-11
WUHAN UNIV OF TECH +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Compared with traditional wall materials, the material properties of self-energy-saving aerated concrete blocks have other characteristics, and it is easy to generate large shear stress with ordinary mortar with high strength and high elastic modulus, resulting in hollowing of aerated concrete plastering layer , cracking, spalling and other quality problems often occur, hindering the development of air-entrained concrete

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
  • Method for preparing special plastering mortar for self-energy-saving air-entrained concrete wall material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A method for preparing a special plastering mortar for self-energy-saving aerated concrete wall materials, which comprises the following steps:

[0028] 1) Preparation of composite cementitious material: Dehydrate the desulfurized gypsum. The dehydration system is: dehydration temperature 180°C, constant temperature 30min; dehydration and aging for 5 days to obtain desulfurized building gypsum; the CaSO in the desulfurized gypsum 4 2H 2 The mass content of O is more than 90%, and the fineness is 0.08mm, and the remaining 6% is sieved;

[0029] The composite cementitious material is composed of desulfurized building gypsum, fly ash, slaked lime and cement. According to the mass percentage of each raw material: 60% of desulfurized building gypsum, 20% of fly ash, 10% of slaked lime, and 10% of cement. Gypsum, fly ash (Class I fly ash), slaked lime and cement, the cement is ordinary Portland cement with a strength grade of 32.5; mix and stir desulfurized building gypsum, ...

Embodiment 2

[0038] A method for preparing a special plastering mortar for self-energy-saving aerated concrete wall materials, which comprises the following steps:

[0039] 1) Preparation of composite cementitious material: Dehydrate the desulfurized gypsum. The dehydration system is: dehydration temperature 160°C, constant temperature 35min; dehydration and aging for 4 days to obtain desulfurized building gypsum; the CaSO in the desulfurized gypsum 4 2H 2 The mass content of O is more than 90%, and the fineness is 0.08mm, and the remaining 8% is sieved;

[0040] The composite cementitious material is composed of desulfurized building gypsum, fly ash, slaked lime and cement. According to the mass percentage of each raw material: desulfurized building gypsum 56%, fly ash 20%, slaked lime 10%, cement 14%, cement is the strength Ordinary Portland cement with a grade of 32.5, select desulfurized building gypsum, fly ash (Class II fly ash), slaked lime and cement; mix and stir desulfurized bui...

Embodiment 3

[0046] A method for preparing a special plastering mortar for self-energy-saving aerated concrete wall materials, which comprises the following steps:

[0047] 1) Preparation of composite cementitious material: Dehydrate the desulfurized gypsum. The dehydration system is: dehydration temperature 200°C, constant temperature 25min; dehydration and aging for 6 days to obtain desulfurized building gypsum; the CaSO in the desulfurized gypsum 4 2H 2 The mass content of O is more than 90%, and the fineness is 0.08mm, and the remaining 5% is sieved;

[0048] The composite cementitious material is composed of desulfurized building gypsum, fly ash, slaked lime and cement. According to the mass percentage of each raw material: desulfurized building gypsum 65%, fly ash 17%, slaked lime 8%, cement 10%, select desulfurized building Gypsum, fly ash, slaked lime and cement, the cement is ordinary Portland cement with a strength grade of 32.5; mixing desulfurized building gypsum, fly ash, sla...

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
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing the plastering mortar of an air-entrained concrete wall material, which belongs to the technical field of construction materials. The method for preparing the special plastering mortar for the self-energy-saving air-entrained concrete wall material is characterized by comprising the following steps: (1) preparing a compound gelatinization material: mixing 56-65% of desulfuration construction gypsum, 17-20% of fly ash, 8-10% of white lime and 10-14% of cement according to the mass percent of each raw material, mixing, stirring and obtaining the compound gelatinization material; (2) preparing an admixture: mixing 27-34% of sodium gluconate, 28-40% of alkali lignin, 16-24% of aluminium powder and 11-14% of cassia nomame powder according to the mass percent of each component, mixing, stirring and obtaining the admixture; and (3) preparing the plastering mortar: selecting according to the mass ratio of 1:1:0.004 of the compound gelatinizationmaterial to fine sand to the admixture; mixing, stirring and obtaining a product. The plastering mortar prepared by the method has good water retention property, better deformation resistance capability and favorable matching with the property of the self-energy-saving air-entrained concrete material; thereby, the quality accidents of drum hollowness, cracking, even falling-off and the like of a plastering layer of a wall body can be effectively overcome.

Description

technical field [0001] The invention relates to a method for preparing plastering mortar for aerated concrete wall materials, and belongs to the technical field of building materials. Background technique [0002] With the rapid increase of my country's total energy consumption, the problem of energy shortage has become prominent, which has seriously affected the development of my country's economy and society. To this end, the state has formulated a series of policies for energy conservation. Among them, the implementation of building energy conservation, the development of energy-saving buildings, and the effective reduction of building energy consumption are long-term guidelines for the development of building technology in my country, and are also important issues that urgently need to be solved in the development of building technology in our country. topic. The wall is an important place for heat exchange in buildings. Using energy-saving walls and ensuring the effecti...

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): B28C5/00B28C7/04C04B28/14
Inventor 陈友治李炎成李国刚雷宜欣李方贤孔祥香王斌
Owner WUHAN UNIV OF TECH
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