Environment-friendly high-performance cement and production method thereof

A high-performance, cement technology, used in cement production and other directions, can solve the problems of inability to meet the construction industry, low concrete fluidity, poor filling effect, etc., and achieve the effect of shortening grinding time, improving ball milling efficiency, and small equipment footprint.

Active Publication Date: 2014-02-26
广西云燕特种水泥建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitations of the traditional cement production process, the amount of slag added is relatively small, adding too much will affect the quality of cement
[0003] The transformation and new construction of civil engineering requires fast, precise and good repair or filling materials, but the commercial concrete made of ordinary cement has low fluidity, long setting time, large shrinkage, and poor filling effect (bubbles, not dense enough) ) and other disadvantages, unable to meet the needs of the growing construction industry

Method used

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  • Environment-friendly high-performance cement and production method thereof
  • Environment-friendly high-performance cement and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 50 parts of the mixed material composed of thermal power plant waste slag and limestone are added to the high-efficiency and energy-saving dryer from the homogenization field, and the heat generated by coal combustion is used to rotate and dry to a moisture content of 3-5%, and it is ground to a particle size of 200 mesh by a ball mill. Put it into the homogenization warehouse, add 38 parts of cement clinker, 6 parts of powdered gypsum, 0.04 part of triethanolamine, 5 parts of sodium hydroxide and aluminum hydroxide, put it into the grinder after homogenization, and put it into the ball mill during the grinding process 0.5MPa high-pressure water is sprayed inside to make the temperature of the grinding process 130±2°C. The material coming out of the grinder is put into the storage bin, put into the homogenization bin, and 0.05 parts of powdered ethylene-vinyl acetate copolymer is added. Material, 0.1 part of polyether defoamer, 0.04 part of sodium carboxymethylcellulose ...

Embodiment 2

[0037] 54 parts of manganese and manganese alloy factory waste slag and limestone mixed materials are added to the high-efficiency energy-saving dryer from the homogenization field, and the heat generated by coal combustion is used to rotate and dry to a moisture content of 3-5%, and to be ground to a particle size of 250 mesh by a ball mill. , put it into the homogenization storehouse, add 36 parts of cement clinker, 8 parts of powdered gypsum, 0.03 parts of triethanolamine phosphate, and 3 parts of alum. Enter 1MPa high-pressure water to make the temperature of the grinding process 100±2°C. Put the material out of the grinder into the storage bin, put it into the homogenization warehouse, add 0.05 parts of powdered ethylene-vinyl acetate copolymer, 0.05 One part of polytetramethylsiloxane defoamer, 0.04 part of sodium polyacrylate and 0.3 part of water-soluble sodium polystyrene sulfonate were homogenized to obtain green cement.

Embodiment 3

[0039]57 parts of mixed material composed of iron and steel smelter waste slag and limestone are added to the high-efficiency energy-saving dryer from the homogenization field, and the heat generated by coal combustion is used to rotate and dry to a moisture content of 3-5%. Put it into the homogenization warehouse, add 32 parts of cement clinker, 7 parts of powdered gypsum, 0.05 part of diethanolamine phosphate, 3 parts of alum and 1 part of borax, put it into the grinder after homogenization treatment, and put it into the ball mill during the grinding process 0.8MPa high-pressure water is sprayed inside to make the temperature of the grinding process 110±2°C. The material coming out of the grinder is put into the storage bin and put into the homogenization warehouse. Add 0.1 part of powdered polyvinyl acetate, 0.06 1 part of polytetramethylsiloxane defoamer, 0.05 part of guar gum, gelatinized starch and 0.4 part of sodium lignosulfonate were homogenized to obtain green cement...

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Abstract

The invention provides environment-friendly high-performance cement which is characterized by consisting of the following raw materials in parts by weight: 50-60 parts of admixture, 32-40 parts of cement clinker, 6-8 parts of gypsum, 0.03-0.05 part of grinding aid, 3-5 parts of excitation substance, 0.05-0.1 part of antifoaming agent, 0.05-0.1 part of plasticizer, 0.03-0.05 part of anti-precipitating agent and 0.2-0.4 part of water reducing agent. In the environment-friendly high-performance cement provided by the invention, a large mixing amount of cement slurry can be realized by adopting a mechanical-chemical excitation production process, a great quantity of industrial waste residues can be consumed, the yield is increased, and the production cost is lowered; moreover, by adding a functional additive, the performance of the product is improved, and the needs of civil engineering are met.

Description

technical field [0001] The invention relates to a high-performance cement, specifically a cement with a large amount of mixed materials, good slurry fluidity and high strength. The invention also provides a production method of the cement. Background technique [0002] Cement is a kind of inorganic gel material that can be hardened in air or better hardened in water after being stirred with water, and can firmly bind sand, stone and other materials together. For a long time, cement, as an important cementitious material, has been widely used in civil engineering, water conservancy, national defense and other projects. With the growth of my country's economy, the country has increased the construction of infrastructure and the development of real estate, the demand for cement is increasing. In 2011, the output of my country's cement was about 2.1 billion tons, ranking first in the world. my country is a big cement producing country, not a strong cement producing country. Be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B7/21C04B7/52C04B28/14
CPCY02P40/10
Inventor 黄芳杨毅龙志谋许建兴
Owner 广西云燕特种水泥建材有限公司
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