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

Preparation method of foamed concrete thermal insulation board

A technology of foamed concrete and thermal insulation boards, which can be applied to ceramic products, applications, household appliances, etc., and can solve the problems of low strength, easy breakage of thermal insulation boards, and inability to meet the requirements of building structures.

Inactive Publication Date: 2018-09-04
芜湖恒固混凝土材料有限公司
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, ordinary concrete insulation boards and aerated concrete insulation boards are brittle materials, which are easy to produce micro-cracks due to shrinkage, or even completely destroyed, and are easily broken during transportation and construction.
The strength of lightweight concrete insulation panels on the market is very low (generally <5MPa), which cannot meet the requirements of building structures, and can only be used as non-load-bearing partition walls or insulation materials

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
  • Preparation method of foamed concrete thermal insulation board

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0015] The present invention also provides a preparation method of the foamed concrete insulation board, comprising the following steps:

[0016] (1) Put aluminum silicate fiber, polymer powder and second foaming agent in water, ultrasonically react at 80-100°C for 30-45 minutes, and then calcinate at 200-220°C for 10-15 minutes to obtain composite fibers;

[0017] (2) Mix fly ash, cement, fine sand, diatomaceous earth, light calcium carbonate, light aggregate, composite porous fiber and waste rubber under mechanical stirring conditions to obtain a powder mixture;

[0018] (3) After uniformly dispersing the water reducer and other additives in water, add them to the above powder mixture, and continue to stir for 60-150s to obtain a mixed slurry; finally, add the first foaming agent to the mixed slurry, and stir evenly to obtain Concrete precursor;

[0019] (4) The concrete precursor is poured into the mold, and the mold is covered and sealed until it reaches 20-60% of the mol...

Embodiment 1

[0033] (1) Take 22kg of polyethylene terephthalate (U.S. DuPont, FR530-BK), 10kg of aluminum silicate fiber and 5kg of 4,4-oxobisbenzenesulfonyl hydrazide in 100kg of water, then place them in 80°C Ultrasonic reaction for 45 minutes, and then calcined at 200°C for 15 minutes to obtain composite fibers;

[0034]Soak 4kg of waste rubber granules in an acidic solution with a pH of 6-6.5 for 4 hours to obtain acidified rubber, mix the acidified rubber and 10kg of maleic anhydride in water evenly, and stir and react at 100°C for 1 hour to obtain modified rubber;

[0035] (2) Mix 35kg of fly ash, 25kg of cement, 23kg of fine sand, 8kg of diatomaceous earth, 8kg of light calcium carbonate, 10kg of clay ceramsite (1-5mm), 10kg of pumice (1-5mm), and 10kg of polyethylene foam , 8kg composite fiber and modified rubber are mixed uniformly under mechanical stirring conditions to obtain a powder mixture;

[0036] (3) Polycarboxylate superplasticizer (model PASP-Ca, purchased from Shandong...

Embodiment 2

[0039] (1) Take 20kg of polyvinylidene fluoride powder (Solvay, 5130 in the United States), 12kg of aluminum silicate fiber and 2kg of 4,4-oxobisbenzenesulfonyl hydrazide in 150kg of water, and then ultrasonically react at 100°C for 30min. Then calcined at 200°C for 15 minutes to obtain composite fibers;

[0040] Soak 3kg of waste rubber particles in an acidic solution with a pH of 6-6.5 for 3 hours to obtain acidified rubber, mix the acidified rubber and 9kg of maleic anhydride in water evenly, and stir and react at 120°C for 1 hour to obtain modified rubber;

[0041] (2) 25kg of fly ash, 35kg of cement, 15kg of fine sand, 12kg of diatomaceous earth, 5kg of polyethylene foam (1 to 5mm), 10kg of castor straw, 12kg of composite fiber and modified rubber under mechanical stirring conditions Mix evenly to obtain a powder mixture;

[0042] (3) 1.5kg polycarboxylate superplasticizer (model PASP-Ca, purchased from Shandong Yuanlian Chemical Co., Ltd.), 1kg sodium dodecylbenzenesulf...

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
Login to View More

Abstract

The invention relates to the technical field of concrete and preparation thereof, and particularly relates to a preparation method of a foamed concrete thermal insulation board. The preparation methodcomprises the following steps of (1), aluminum silicate fiber, a chain extender, graphene oxide and a second foaming agent are placed in polymer powder, ultrasonic reaction is conducted at 80-100 DEGC for 30-45 min, and then calcination is conducted at 200-220 DEG C for 10-15 min to obtain a composite fiber; (2), fly ash, cement, fine sand, diatomite, light calcium carbonate, lightweight aggregate, composite porous fiber, waste rubber, a water reducing agent and other additives are uniformly dispersed in water, and then the first foaming agent is added and uniformly stirred to obtain a concrete precursor; the concrete precursor is subjected to reverse moulding and curing to obtain the concrete thermal insulation board. The concrete thermal insulation board prepared by the method has theadvantages of light weight, high strength and excellent thermal insulation and sound insulation effects.

Description

technical field [0001] The invention relates to the technical field of concrete and its preparation, in particular to a preparation method of a foamed concrete insulation board. Background technique [0002] Building energy conservation is a very important aspect of realizing a low-carbon economy. my country will continue to vigorously implement building energy conservation and emission reduction for a long period of time, develop green buildings and circular economy, and green building materials will become the main direction of development. At present, the most common concrete insulation board used in industrial and civil buildings, although its strength (generally 20-30MPa) can basically meet the requirements of the building structure, is relatively heavy. [0003] Foam concrete has a variety of excellent properties, such as light weight, flame retardant and heat insulation, good thermal insulation and sound insulation performance, and the ability to adjust indoor humidi...

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): C04B38/08C04B38/02C04B28/00
CPCC04B28/00C04B2111/40C04B2111/52C04B2201/20C04B2201/32C04B2201/50C04B18/08C04B14/06C04B14/08C04B14/28C04B14/4656C04B18/027C04B18/22C04B24/24C04B2103/302C04B2103/0068C04B24/283C04B24/16C04B16/082C04B24/06C04B22/068C04B24/383C04B22/08C04B38/08C04B38/02C04B38/0067
Inventor 承忠富
Owner 芜湖恒固混凝土材料有限公司
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