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

GRC board based on steel slag carbonization

A technology of steel slag and carbonization box, applied in the field of GRC plate, can solve problems such as land occupation, and achieve the effects of high durability, simple and controllable preparation method and excellent mechanical properties

Inactive Publication Date: 2019-03-19
WUHAN UNIV OF TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low utilization rate of steel slag leads to a large amount of stacking, which leads to serious land occupation problems, which prompts iron and steel enterprises to accelerate the development of steel slag reuse technology

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

[0016] A GRC plate based on steel slag carbonization, its matrix is ​​formed by carbonization and hardening of the steel slag, and it includes the following components in percentages of the total volume of the composite material: 45 parts of steel slag, 46 parts of quartz sand, 2 parts of glass fiber, and 7 parts of water share. The steel slag has a particle size distribution of 0.5-80 μm and an apparent density greater than 3000 kg / m 3 , the specific surface area is greater than 450m 2 / kg, steel slag powder with iron content less than 1%. The glass fibers are ordinary medium-alkali glass fibers with a density of 2400-2600kg / m 3 , the length is 3mm. The quartz sand includes the following two kinds of quartz sand with different particle sizes mixed according to a certain mass ratio: quartz sand-A 25%, quartz sand-B 75%, wherein the average particle size of quartz sand-A is 100 μm, and quartz sand-B The average particle size is 500 μm.

[0017] Preparation method: firstly ...

Embodiment 2

[0020] A GRC plate based on steel slag carbonization, its matrix is ​​formed by carbonization and hardening of the steel slag, and it includes the following components in percentages of the total volume of the composite material: 40.5 parts of steel slag, 48.5 parts of quartz sand, 3.5 parts of glass fiber, and 7.5 parts of water share. The steel slag has a particle size distribution of 0.5-80 μm and an apparent density greater than 3000 kg / m 3 , the specific surface area is greater than 450m 2 / kg, steel slag powder with iron content less than 1%. The glass fibers are common medium-alkali glass fibers with a density of 2400kg / m 3 , the length is 3mm. The quartz sand includes the following two kinds of quartz sand with different particle sizes mixed according to a certain mass ratio: quartz sand-A 25%, quartz sand-B 75%, wherein the average particle size of quartz sand-A is 100 μm, and quartz sand-B The average particle size is 500 μm.

[0021] Preparation method: firstly...

Embodiment 3

[0024] A GRC plate based on steel slag carbonization, its matrix is ​​formed by carbonization and hardening of the steel slag, and it includes the following components in percentages of the total volume of the composite material: 40.5 parts of steel slag, 48.5 parts of quartz sand, 3.5 parts of glass fiber, and 7.5 parts of water share. The steel slag has a particle size distribution of 0.5-80 μm and an apparent density greater than 3000 kg / m 3 , the specific surface area is greater than 450m 2 / kg, steel slag powder with iron content less than 1%. The glass fibers are common medium-alkali glass fibers with a density of 2400kg / m 3 , the length is 3mm. The quartz sand includes the following two kinds of quartz sand with different particle sizes mixed according to a certain mass ratio: quartz sand-A 25%, quartz sand-B 75%, wherein the average particle size of quartz sand-A is 100 μm, and quartz sand-B The average particle size is 500 μm.

[0025] Preparation method: firstly...

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 sizeaaaaaaaaaa
Apparent densityaaaaaaaaaa
Specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of construction materials, and particularly relates to a GRC board based on steel slag carbonization. The GRC board is prepared from the following raw materials in parts by volume: 40-45 parts of steel slags, 40-50 parts of quartz sands, 2-6 parts of glass fibers and 5-10 parts of water. The matrix is formed from steel slag by carbonizing and hardening,and is transformed into a matrix with gelling performance and excellent mechanical performance by a steel slag carbonizing process, and the inert quartz sands and glass fibers are uniformly dispersedinside the matrix; furthermore, the production cost can be reduced by using conventional medium-alkaline glass fibers due to the fact that the specific low alkaline environment of the carbonized matrix has low requirement for alkali resistance on glass fibers; the GRC board has extremely low volume shrinkage strain and high volume stability; and the GRC board based on steel slag carbonization hasexcellent mechanical performance, high durability, low cost and high environmental friendliness, and the preparation method has the advantages of simple and controllable process, short preparation cycle and the like.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a GRC plate based on steel slag carbonization. Background technique [0002] GRC is the acronym for Glass fiber reinforced concrete in English, and the Chinese name is glass fiber reinforced concrete. As a building composite material, GRC has better composite and plasticity than traditional single building materials, and through the optimization design of materials, its performance can reach or even exceed that of traditional materials. The main advantages of GRC include high specific strength, good volume stability, rich texture and color, strong modeling ability and plasticity, and short processing cycle. [0003] The research on GRC boards began in the first half of the 20th century. At first, ordinary medium-alkali glass and ordinary Portland cement were used as the main raw materials. However, the high-alkaline environment produced by cement hydration...

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
IPC IPC(8): C04B28/08C04B40/02
CPCC04B28/082C04B40/0231C04B2201/50C04B2201/52C04B14/06C04B14/42
Inventor 胡曙光王发洲冀更新何永佳陈平钱雄
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