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A kind of environmental protection building cement and preparation method thereof

A construction cement and environmental protection technology, applied in the direction of cement production, etc., to achieve the effect of good water retention performance, high production efficiency, and easy access to raw materials

Active Publication Date: 2021-12-14
张勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide an environmentally friendly building cement in order to overcome the deficiencies of the prior art. The cement has good comprehensive performance, long service life, good use effect, strength, grinding aid effect, hydration efficiency, workability and water retention performance. , not prone to cracking and hollowing, excellent environmental performance

Method used

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  • A kind of environmental protection building cement and preparation method thereof

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Embodiment 1

[0029] Embodiment 1 provides an environmentally friendly building cement, which is characterized in that it is made of the following raw materials in parts by weight: 40 parts of cement clinker, 5 parts of modified dry sludge, 6 parts of desulfurization ash, and 3 parts of waste polyester fiber , 10 parts of calcite powder, 1 part of rare earth metal organic framework, 1 part of N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid modified epoxy-terminated hyperbranched poly(amine-ester).

[0030]The preparation method of the modified dried sludge comprises the following steps: dispersing the dried sludge in an organic solvent, and then adding N,N-bis(2-hydroxyethyl)-N,N-bis (Trimethoxysilylpropyl) ethylenediamine was stirred and reacted at 50°C for 3 hours, and then the solvent was removed by rotary evaporation to obtain modified dried sludge; the dried sludge, organic solvent, N,N-bis The mass ratio of (2-hydroxyethyl)-N,N-bis(trimethoxysilylpropyl)ethylenediamine is 1:3:0...

Embodiment 2

[0034] Embodiment 2 provides an environmentally friendly building cement, which is characterized in that it is made of the following raw materials in parts by weight: 45 parts of cement clinker, 6 parts of modified dry sludge, 7 parts of desulfurization ash, and 3.5 parts of waste polyester fiber , 11 parts of calcite powder, 1.2 parts of rare earth metal organic framework, 2 parts of N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid modified epoxy-terminated hyperbranched poly(amine-ester).

[0035] The preparation method of the modified dried sludge comprises the following steps: dispersing the dried sludge in an organic solvent, and then adding N,N-bis(2-hydroxyethyl)-N,N-bis (Trimethoxysilylpropyl) ethylenediamine was stirred and reacted at 55°C for 3.5 hours, and then the solvent was removed by rotary evaporation to obtain modified dry sludge; the dry sludge, organic solvent, N,N-bis The mass ratio of (2-hydroxyethyl)-N,N-bis(trimethoxysilylpropyl)ethylenediamine is ...

Embodiment 3

[0039] Embodiment 3 provides an environmentally friendly building cement, which is characterized in that it is made of the following raw materials in parts by weight: 50 parts of cement clinker, 7 parts of modified dry sludge, 8 parts of desulfurization ash, and 4 parts of waste polyester fiber , 13 parts of calcite powder, 1.5 parts of rare earth metal organic framework, 3.5 parts of N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid modified epoxy-terminated hyperbranched poly(amine-ester).

[0040] The preparation method of the modified dried sludge comprises the following steps: dispersing the dried sludge in an organic solvent, and then adding N,N-bis(2-hydroxyethyl)-N,N-bis (Trimethoxysilylpropyl) ethylenediamine was stirred and reacted at 60°C for 4 hours, and then the solvent was removed by rotary evaporation to obtain a modified dry sludge; the dry sludge, organic solvent, N,N-bis The mass ratio of (2-hydroxyethyl)-N,N-bis(trimethoxysilylpropyl)ethylenediamine is ...

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Abstract

The invention discloses an environmentally friendly building cement, which is characterized in that it is made from the following raw materials in parts by weight: 40-60 parts of cement clinker, 5-10 parts of modified dry sludge, and 6-12 parts of desulfurized ash , 3-5 parts of waste polyester fiber, 10-15 parts of calcite powder, 1-2 parts of rare earth metal organic framework, N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid modified epoxy end group hyperbranching 1-5 parts of poly(amine-ester). The invention also discloses a preparation method of the environment-friendly building cement. The environmentally friendly building cement disclosed by the invention has good comprehensive performance, long service life, good use effect, good strength, grinding aid effect, hydration efficiency, workability, and water retention performance, is not prone to cracking and hollowing, and has excellent environmental protection performance.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to an environmentally friendly building cement and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the national economy, the pace of infrastructure construction has continued to advance. The demand for various building materials is increasing year by year. As the largest branch of building materials, cement plays a very important role in the construction of high-rise buildings, paving roads, erecting bridges, building subways and other human social infrastructure construction activities, which greatly improves the living, working and travel environment of human beings. It can be seen that the development of cement with excellent performance is very important to improve the quality of construction projects. [0003] Cement is a powdery hydraulic inorganic gelling material. After adding water and stirring, it bec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B7/24C04B7/52
CPCC04B7/24C04B7/52Y02P40/10
Inventor 张勇刘洪涛吴学华张嘉欣邢康哲康亚男
Owner 张勇
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