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Low-carbon active ligand and low-carbon slag powder cementitious material

A technology of slag powder and cementitious materials, which is applied in the field of building materials, can solve problems such as the depletion of mineral resources, the shortage of industrial energy, and the deterioration of the atmospheric environment, and achieve the effect of improving product quality

Inactive Publication Date: 2010-04-28
崔传鹏 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since Portland cement was invented by British mason Joseph Aspadian in 1824, people have been using limestone (CaCO 3 ) and coal are produced using the "two grinding and one burning" production process, which is still used so far, resulting in the depletion of mineral resources, the deterioration of the atmospheric environment, and the shortage of industrial energy

Method used

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  • Low-carbon active ligand and low-carbon slag powder cementitious material
  • Low-carbon active ligand and low-carbon slag powder cementitious material

Examples

Experimental program
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Effect test

Embodiment 1

[0010] Step 1: Synthesis of low-carbon active ligands

[0011] First, grind 1 kg of bauxite, 8 kg of gypsum, and 3 kg of garnet in a small mill to make the specific surface reach 250-350m 2 After / g is the low-carbon positive ligand;

[0012] Grind 6kg of Glauber's salt and 1kg of fluorite in a mill again to make the specific surface reach 250-350m 2 After / g is the low carbon negative ligand;

[0013] Finally, 12 kg of low-carbon positive ligands and 7 kg of low-carbon negative ligands are added to the mill to make the specific surface reach 420-450m 2 / g to obtain low-carbon active ligands.

[0014] The second step: preparation of slag micropowder cementitious material:

[0015] Take 5 kg of the above-mentioned low-carbon active ligand and grind it with 95 kg of slag to make the specific surface reach 420-450m 2 / g and fully homogenized to obtain low-carbon slag powder {32.5 grade} cementitious material.

[0016] Experimental test:

[0017] Measure its various perform...

Embodiment 2

[0022] Step 1: Synthesis of low-carbon active ligands

[0023] 1. Grind 1 kg of bauxite, 8 kg of gypsum, and 3 kg of garnet in a mill to make the specific surface reach 250-350m 2 / g, to obtain low carbon type positive ligand;

[0024] 2. Grind 6 kg of Glauber's salt and 1 kg of fluorite in a mill to make the specific surface reach 250-350m 2 / g, to obtain low carbon type negative ligand;

[0025] 3. Add 12 kg of low-carbon positive ligands and 7 kg of low-carbon negative ligands into the mill to make the specific surface reach 420-450m 2 / g to obtain low-carbon active ligands.

[0026] The second step: preparation of slag micropowder cementitious material:

[0027] Take 7 kg of the above-mentioned low-carbon active ligand and grind it with 93 kg of slag to make the specific surface reach 420-450 m 2 / g and fully homogenized to obtain low-carbon slag powder {42.5 grade} cementitious material

[0028] Experimental test:

[0029] Measure its various performance indicators...

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Abstract

The invention provides a low-carbon active ligand and a slag powder cementitious material thereof. The invention is characterized in that bauxite, glauberite, fluorite, gypsum, garnets and a plurality of ores are ground and prepared into low-carbon negative and positive ligands respectively; the negative and positive ligands are ground, mixed and prepared into the low-carbon active ligand; the low-carbon active ligand is added to slag; and a low-carbon slag powder cementitious material used to replace cement is obtained after homogenization. As no calcination process is adopted, the problem of atmospheric pollution during cement production is solved (because calcination is not needed); the slag (steel slag, water granulated slag, fly ash and the like) can be utilized well; mineral resources (without limestone) can be protected; and energy can be saved (only 'two-grinding and one-calcination' needs to be changed into 'one grinding'). Moreover, the slag powder cementitious material has good physical performance indexes and can be widely applied in roads, bridges, buildings, cement precast parts and other concrete construction.

Description

Technical field: [0001] The invention belongs to the field of building materials, and in particular relates to a low-carbon active ligand and a low-carbon slag micropowder gelling material Background technique: [0002] Since Portland cement was invented by British mason Joseph Aspadian in 1824, people have been using limestone (CaCO 3 ) and coal are produced using the "two grinding and one burning" production process, which is still used so far, resulting in the depletion of mineral resources, the deterioration of the atmospheric environment, and the shortage of industrial energy. Invention content: [0003] The purpose of the present invention is to provide a low-carbon active ligand and low-carbon slag micropowder cementitious material that does not require limestone and coal, and does not need to be calcined in the production process. [0004] The gist of the invention is that firstly, the three materials of bauxite, gypsum and garnet are added to a ball mill in a rat...

Claims

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Application Information

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IPC IPC(8): C04B7/14C04B7/21
CPCY02P40/10
Inventor 崔传鹏李新萍冯毅强李根萍
Owner 崔传鹏
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