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A modified blast furnace slag material and its preparation process

A technology of blast furnace slag and preparation process, which is applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve problems such as inability to construct, low strength, and difficult construction, and achieve improved pelleting performance and early strength , the effect of improving performance

Active Publication Date: 2020-06-19
天津海得润滋建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The S95 grade slag powder currently available on the market has low early strength, especially when it is constructed in a colder climate, it will encounter difficulties or even be impossible to construct.

Method used

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  • A modified blast furnace slag material and its preparation process
  • A modified blast furnace slag material and its preparation process

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Experimental program
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Effect test

Embodiment 2

[0027] A modified blast furnace slag material, comprising the following components in parts by weight: 50 parts of blast furnace slag, 3 parts of hemihydrate desulfurized gypsum, 10 parts of ultrafine steel slag powder, 2 parts of fly ash ceramsite, 1 part of sodium polyacrylate, 5 parts of water, 1 part of chitosan-polyacrylamide-silicon dioxide-ferric oxide composite microspheres, and 10 parts of quartz sand.

Embodiment 3

[0029] A modified blast furnace slag material, comprising the following components in parts by weight: 51 parts of blast furnace slag, 4 parts of hemihydrate desulfurized gypsum, 12 parts of ultrafine steel slag powder, 3 parts of sintered fly ash ceramsite, and 1.2 parts of sodium polyacrylate 5.2 parts of water, 1.1 parts of chitosan-polyacrylamide-silicon dioxide-ferric oxide composite microspheres, and 12 parts of quartz sand.

Embodiment 4

[0031] A modified blast furnace slag material, comprising the following components in parts by weight: 52 parts of blast furnace slag, 4 parts of hemihydrate desulfurized gypsum, 15 parts of ultrafine steel slag powder, 3 parts of sintered fly ash ceramsite, and 1.3 parts of sodium polyacrylate 5.4 parts of water, 1.2 parts of chitosan-polyacrylamide-silicon dioxide-ferric oxide composite microspheres, and 14 parts of quartz sand.

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Abstract

The invention discloses a modified blast furnace slag material and a preparation technology thereof. The modified blast furnace slag material is characterized by being prepared from the following components in parts by weight: 50-55 parts of blast furnace slag, 3-10 parts of semi-hydrated desulfurization gypsum, 10-20 parts of ultrafine steel slag micro-powder, 2-5 parts of fly ash ceramsite, 1-1.5 parts of sodium polyacrylate and 5-6 parts of water. The semi-hydrated desulfurization gypsum and the ultrafine steel slag micro-powder have a synergistic effect on the modification of the blast furnace slag, so that the early strength of the blast furnace slag is improved; the added sodium polyacrylate also plays a role in modifying the blast furnace slag, so that the performance of the blast furnace slag is effectively improved; the added sintered fly ash ceramsite influences the performance of the blast furnace slag as well, effectively improves the balling performance of the blast furnace slag in a modification process, and also can enhance the thermal insulation performance, fire resistance, frost resistance and durability performance of the blast furnace slag.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a modified blast furnace slag material and a preparation process thereof. Background technique [0002] Blast furnace slag is the largest amount of slag in the metallurgical industry, and it is the waste slag discharged from blast furnace ironmaking. The physical and chemical properties of blast furnace slag depend on the treatment method of high temperature slag. According to the different methods of processing liquid slag into solid slag, the characteristics of blast furnace slag are also different. [0003] The currently commercially available S95 grade slag powder has low early strength, especially when it is constructed in a colder climate, it will encounter construction difficulties or even fail to construct. Contents of the invention [0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a modified blast furnace slag m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B20/02C04B18/14C04B5/00
CPCC04B5/00C04B18/141C04B20/026C04B22/145C04B18/142C04B18/027C04B24/26C04B14/06C04B24/38Y02W30/91
Inventor 王卫田刘建顺
Owner 天津海得润滋建材有限公司