Cement concrete admixture prepared from acidic zirconium-containing silica slag and preparation method thereof

A technology of cement concrete and zirconium silica slag, which is applied in the direction of cement production, climate sustainability, sustainable waste treatment, etc., and can solve the problems of low investment cost, underutilization of silicate slag, secondary pollution, etc.

Active Publication Date: 2013-06-19
山东西建建筑材料有限公司
View PDF3 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This treatment process has the characteristics of short process, simple equipment, low investment cost, and obvious economic benefits. The disadvantage is that the silicic acid slag has not been fully utilized
(3) Prepare industrial raw materials such as sodium metasilicate, sodium silicate, polyaluminum chloride with alkaline waste water and acidic silicon slag as basic raw material, the feature of this method is to realize utilizing waste alkaline water and acidic silicon slag simultaneously, but The preparation pr

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] The mass percentage ratio of the cement concrete admixture prepared by using acid zirconium silica slag is: acid zirconium silica slag 80%, fly ash 10%, activator quicklime 8%, grinding aid 2%.

[0017] The preparation steps are as follows: calcinate the acidic zirconium-silicon slag at 300°C for 2 hours, then ball mill it for 1 hour, and the residue on a 400-mesh sieve is <5%; then add an activator and 20% water to the acidic zirconium-silicon after ball milling, and stir evenly; Dry at -120°C. Add fly ash and admixture, and ball mill for 1 hour to obtain the raw material of the admixture. The admixture is used to replace 10% cement, and the relevant performance is tested by referring to the standard test method of "Silicon Fume for Mortar and Concrete" (GBT27690-2011). Silica fume" (GBT27690-2011) related technical requirements.

Embodiment 2

[0019] The cement concrete admixture prepared by using acidic zirconium silicon slag, its mass percentage ratio is respectively: acidic zirconium silicon slag 85%, fly ash 7%, activator Ca(OH) 2 7%, grinding aid 1%.

[0020] The preparation steps are as follows: calcinate the acidic zirconium silicon slag at 300°C for 1.5 hours, then ball mill it for 1.5 hours, and the residue on a 400-mesh sieve is <5%; then add an activator and 20% water to the acidic zirconium silicon after ball milling, and stir evenly; Dry at 105-120°C. Add fly ash and admixture, and ball mill for 1 hour to obtain the raw material of the admixture. Replace 20% cement with this admixture, and mold it with reference to the standard method of "Silicon Fume for Mortar and Concrete" (GBT27690-2011), and maintain and test related properties according to the standard maintenance conditions of "Cement Mortar Strength Test Method" GB17671-1999, The 7d activity index of the admixture is 110, and the 28d activatio...

Embodiment 3

[0022] The cement concrete admixture prepared by using acidic zirconium silica slag, its mass percentage ratio is respectively: acid zirconium silicate slag 80%, fly ash 10%, activator NaOH 2%, NaOH 2 SO 4 6%, grinding aid 2%.

[0023] The preparation steps are as follows: calcinate the acidic zirconium silicon slag at 450°C for 1.5 hours, then ball mill it for 3 hours, and the residue on a 400-mesh sieve is <5%; then add an activator and 20% water to the acidic zirconium silicon after ball milling, and stir evenly; Dry at 105-120°C. Add fly ash and admixture, and ball mill for 1 hour to obtain the raw material of the admixture. The admixture is used to replace 10% cement, and the relevant performance is tested by referring to the standard test method of "Silicon Fume for Mortar and Concrete" (GBT27690-2011). Silica fume" (GBT27690-2011) related technical requirements.

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

No PUM Login to view more

Abstract

The invention provides a cement concrete admixture prepared from silica slag containing acidic zirconium and a preparation method thereof and belongs to the field of building materials. The cement concrete admixture can be applied to cement products or cement concrete. The cement concrete admixture provided by the invention comprises the following components in percentage by weight: 80-90% of silica slag containing acidic zirconium, 5-10% of coal ash, 4-9% of an activator and 1-2% of a grinding aid. According to the invention, the activity of the acidic zirconium-containing silica slag is increased by roasting the zirconium-containing silica slag and adding the activator so that the performance of the admixture is increased. The replacement amount of cement of the admixture is between 10-30%, and the admixture can be used as the replacer of high-quality mineral admixtures such as slag and silica fume, so that the cost of building materials is reduced; and meanwhile, the silica slag containing acidic zirconium is effectively utilized and the problem of environmental pollution caused by the stack of the slag is solved.

Description

technical field [0001] The invention relates to a cement concrete admixture prepared by using acidic zirconium silica slag and a preparation method thereof, which belongs to the field of building materials and can be used for cement products or cement concrete products. Background technique [0002] Zirconium oxychloride (ZrOCl 2 ·8H 2 O) is an important basic industrial raw material of zirconium salt, which is widely used in industries such as ceramics, textiles, electronics, catalysts and metallurgy. At present, the domestic production of zirconium oxychloride mostly adopts the alkali fusion process, which has the characteristics of stable product quality, large-scale equipment, and low production cost. But its disadvantage is that a large amount of waste alkaline water and zirconium silicon slag are produced, and about 6 tons of waste alkaline water and 0.5-1.0t of acidic zirconium silicon slag are produced for every 1 ton of zirconium oxychloride produced. Among them,...

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): C04B7/26C04B18/30
CPCY02P40/10Y02W30/91
Inventor 徐丽娜岳雪涛张丰庆田清波
Owner 山东西建建筑材料有限公司
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap