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Green early-strength general Portland cement for prefabricated parts and preparation method thereof

A technology of ordinary Portland cement and Portland cement, applied in cement production and other directions, can solve the problems of insufficient early strength, decreased durability and impermeability, etc., and achieve improved mechanical properties and durability, resistance to chloride ions and sulfate corrosion resistance, high durability effect

Inactive Publication Date: 2021-03-09
汝州市东江建筑工业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the high demand for cement and the performance of materials in the production of existing prefabricated components, but the production of cement also has a negative impact on the ecological environment. increase, its early strength is insufficient, its durability and impermeability are reduced, and the technical problems such as the application of cement in high-rise buildings are restricted. Performance, meet the performance requirements of high-rise prefabricated components, save resource consumption, reduce pollutant emissions, and take social benefits into account

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] A green early-strength general-purpose Portland cement for prefabricated components is characterized in that it includes a base material, an admixture, a modifier, a retarder and a grinding aid, wherein the base material is ordinary Portland cement clinker, The mixed materials include mineral powder, recycled micropowder from construction waste, fly ash and metallurgical waste residue, the modifier includes graphene oxide and graphene, and the retarder includes desulfurized gypsum. The above ingredients have the following components by weight fraction: ordinary silicate 65 parts of cement clinker, 1 part of mineral powder, 1 part of recycled micropowder from construction waste, 1 part of fly ash, 1 part of metallurgical waste residue, 0.03 part of graphene oxide, 0.03 part of graphene, 5 parts of desulfurized gypsum, 0.02 part of grinding aid .

[0022] The ordinary Portland cement clinker has the following mineral components by weight fraction: C 3 S: 50 copies, C 2 ...

example 2

[0034] A green early-strength general-purpose Portland cement for prefabricated components is characterized in that it includes a base material, an admixture, a modifier, a retarder and a grinding aid, wherein the base material is ordinary Portland cement clinker, The mixed materials include mineral powder, recycled micropowder from construction waste, fly ash and metallurgical waste residue, the modifier includes graphene oxide and graphene, and the retarder includes desulfurized gypsum. The above ingredients have the following components by weight fraction: ordinary silicate 80 parts of cement clinker, 8 parts of mineral powder, 6 parts of recycled micropowder from construction waste, 6 parts of fly ash, 6 parts of metallurgical waste residue, 0.04 part of graphene oxide, 0.06 part of graphene, 5 parts of desulfurized gypsum, and 0.04 part of grinding aid .

[0035] The ordinary Portland cement clinker has the following mineral components by weight fraction: C 3 S: 55 parts...

example 3

[0047] A green early-strength general-purpose Portland cement for prefabricated components is characterized in that it includes a base material, an admixture, a modifier, a retarder and a grinding aid, wherein the base material is ordinary Portland cement clinker, The mixed materials include mineral powder, recycled micropowder from construction waste, fly ash and metallurgical waste residue, the modifier includes graphene oxide and graphene, and the retarder includes desulfurized gypsum. The above ingredients have the following components by weight fraction: ordinary silicate 90 parts of cement clinker, 15 parts of slag powder, 10 parts of recycled fine powder from construction waste, 10 parts of fly ash, 10 parts of metallurgical waste residue, 0.05 parts of graphene oxide, 0.08 parts of graphene, 5 parts of desulfurized gypsum, and 0.05 parts of grinding aid .

[0048] The ordinary Portland cement clinker has the following mineral components by weight fraction: C 3 S: 60 c...

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Abstract

The invention relates to green early-strength general Portland cement for prefabricated parts and a preparation method thereof. The green early-strength general Portland cement comprises the followingcomponents in parts by weight: 65-90 parts of ordinary Portland cement clinker, 1-15 parts of mineral powder, 1-10 parts of construction waste regenerated micro powder, 1-10 parts of fly ash, 1-10 parts of metallurgical waste residues, 0.03-0.05 part of graphene oxide, 0.03-0.08 part of graphene, 5 parts of desulfurization gypsum and 0.02-0.05 part of grinding aid. Compared with the prior art, the cement prepared by using the method disclosed by the invention can remarkably improve the cement performance, meets the use performance requirements of high-rise prefabricated parts, saves the consumption of resources, reduces pollutant emission and gives consideration to social benefits, and has a very good popularization value.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a green early-strength general-purpose Portland cement for prefabricated components. Background technique [0002] With the development of my country's economy and the advancement of technology, the construction industry has been updated rapidly, prefabricated buildings have been continuously promoted, and prefabricated components are continuously used in high-rise buildings. The production of prefabricated components puts forward extremely high requirements for cement demand and material performance. , but the production of cement also has a negative impact on the ecological environment. [0003] At present, with the increase of the amount of mixed materials, the existing ordinary portland cement has insufficient early strength, and the performance of durability and impermeability decreases, which restricts the application of cement in high-rise buildings. How to inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/26C04B7/24C04B7/19C04B7/36
CPCC04B7/26C04B7/246C04B7/19C04B7/36Y02P40/10
Inventor 张冠军夏芊芊赵国青白利琴路帅兵杨立凯牛亚卫陈延伟
Owner 汝州市东江建筑工业科技有限公司
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