High strength cement

A technology of high-strength cement and Portland cement, applied in the field of high-strength cement, can solve the problems of insufficient activity of admixtures, coarse admixtures, insufficient strength, etc., and achieves short grinding time, dry shrinkage, and frost resistance. good effect

Inactive Publication Date: 2016-05-04
QINGDAO HONGYU ENVIRONMENTAL PROTECTION AIR CONDITIONING EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Cement is a building material with a wide range of applications. The existing cement products are not strong enough to meet certain special requirements. At present, most cement manufacturers in my country use the process of mixing and grinding admixture mate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] A high-strength cement consisting of the following raw materials in parts by weight: 85 parts of Portland cement clinker, 20 parts of desulfurized gypsum, 2 parts of pozzolan, 15 parts of fly ash, 10 parts of bauxite, 5 parts of slag, coal 10 parts gangue, 5 parts silica, 5 parts industrial waste, 5 parts grinding aid, 1 part tartaric acid.

Embodiment 2

[0010] A high-strength cement consisting of the following raw materials in parts by weight: 90 parts of Portland cement clinker, 22 parts of desulfurized gypsum, 3 parts of pozzolan, 20 parts of fly ash, 13 parts of bauxite, 8 parts of slag, coal 15 parts gangue, 7 parts silica, 7 parts industrial waste, 7 parts grinding aid, 2 parts sodium chloride.

Embodiment 3

[0012] A high-strength cement consisting of the following raw materials in parts by weight: 95 parts of Portland cement clinker, 25 parts of desulfurized gypsum, 5 parts of pozzolan, 25 parts of fly ash, 15 parts of bauxite, 10 parts of slag, coal 18 parts of gangue, 8 parts of silica, 10 parts of industrial waste, 8 parts of grinding aid, and 3 parts of boric acid.

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PUM

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Abstract

The invention discloses high strength cement. The high strength cement is prepared from 85-95 parts by weight of portland cement clinker, 20-25 parts by weight of desulfurized gypsum, 2-5 parts by weight of vulcanic ash, 15-25 parts by weight of fly ash, 10-15 parts by weight of bauxite, 5-10 parts by weight of slag, 10-18 parts by weight of gangue, 5-8 parts by weight of silica, 5-10 parts by weight of industrial waste residues, 5-8 parts by weight of a grinding aid and 1-3 parts by weight of one or more conditioning agents. The one or more conditioning agents are selected from tartaric acid, sodium chloride and boric acid. The high strength cement has the advantages of high strength, good freezing tolerance and small dry shrinkage.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to high-strength cement. Background technique [0002] Cement is a building material with a wide range of applications. The existing cement products are not strong enough to meet certain special requirements. At present, most cement manufacturers in my country use the process of mixing and grinding admixture materials and cement clinker. The particle size of the admixture is relatively coarse, and the activity of the admixture cannot be fully exerted. Therefore, among all the influencing factors, the amount of the admixture has the most obvious influence on the cement strength. Contents of the invention [0003] The object of the present invention is to provide a high-strength cement with high strength, good frost resistance and shrinkage when dried. [0004] The technical solution adopted in the present invention is that a high-strength cement is composed of the foll...

Claims

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Application Information

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IPC IPC(8): C04B7/26
CPCC04B7/02C04B7/147C04B7/24C04B7/243C04B2103/52Y02P40/10
Inventor 李盛明
Owner QINGDAO HONGYU ENVIRONMENTAL PROTECTION AIR CONDITIONING EQUIP
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