Calcination-free industrial gypsum byproduct dry-mixed mortar activator

A technology for industrial by-product gypsum and dry-mixed mortar, applied in the field of dry-mixed mortar additives, can solve the problems of reducing the later strength of the mortar, unable to fully play a role, and not suitable for rapid dissolution, etc. The effect of pantothenic

Active Publication Date: 2013-08-21
SHANDONG CHENGHUA BUILDING MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These are all solids, and their biggest disadvantages are uneven dispersion, inability to fully function due to unsuitable rapid dissolution, narrow scope of application, poor effect, surface efflorescence, etc.; these traditional activators will also reduce the later strength of mortar; and these Traditional SO 3 The activator also delays the setting time of the mortar

Method used

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  • Calcination-free industrial gypsum byproduct dry-mixed mortar activator
  • Calcination-free industrial gypsum byproduct dry-mixed mortar activator
  • Calcination-free industrial gypsum byproduct dry-mixed mortar activator

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] formula:

[0025] Anhydrous Calcium Chloride 15g Calcium Nitrite 5g Triethanolamine 15g

[0026] Triisopropanolamine 5g Industrial sugar residue 40g Water 20g

[0027] Stone powder finer than 200 mesh 900g

[0028] Described triethanolamine is industrial grade 85 mixed amine;

[0029] The sugar content of the sucrose residue is about 48, and the Brix is ​​about 70.

[0030] Preparation:

[0031] Dissolve anhydrous calcium chloride, calcium nitrite, triethanolamine, triisopropanolamine and sucrose residue in water to obtain an intermediate solution, and slowly add the intermediate solution to the stone powder at a weight ratio of 1:9, Add and stir mechanically, and stir evenly to obtain the target activator.

Embodiment 2

[0033] formula:

[0034] Anhydrous Calcium Chloride 20g Calcium Nitrite 4g Triethanolamine 10g

[0035] Triisopropanolamine 10g Industrial sugar residue 30g Water 26g

[0036] Stone powder finer than 200 mesh 900g

[0037] Described triethanolamine is industrial grade 85 mixed amine;

[0038] The sugar content of the sucrose residue is 48, and the Brix is ​​70.

[0039] Preparation:

[0040] Dissolve anhydrous calcium chloride, calcium nitrite, triethanolamine, triisopropanolamine and sucrose residue in water to obtain an intermediate solution, and slowly add the intermediate solution to the stone powder at a weight ratio of 1:9, Add and stir mechanically, and stir evenly to obtain the target activator.

Embodiment 3

[0042] formula:

[0043] Anhydrous Calcium Chloride 15g Calcium Nitrite 7g Triethanolamine 5g

[0044] Triisopropanolamine 5g Industrial sugar residue 45g Water 23g

[0045] Stone powder finer than 200 mesh 900g

[0046] Described triethanolamine is industrial grade 85 mixed amine;

[0047] The sugar content of the sucrose residue is 48, and the Brix is ​​70.

[0048] Preparation:

[0049] Dissolve anhydrous calcium chloride, calcium nitrite, triethanolamine, triisopropanolamine and sucrose residue in water to obtain an intermediate solution, and slowly add the intermediate solution to the stone powder at a weight ratio of 1:9, Add and stir mechanically, and stir evenly to obtain the target activator.

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Abstract

The invention discloses a calcination-free industrial gypsum byproduct dry-mixed mortar activator, which belongs to the field of dry-mixed mortar additives. The dry-mixed mortar activator is prepared with the following mixed materials in part by weight: 10 to 25 parts of calcium chloride, 3 to 8 parts of calcium nitrite, 5 to 15 parts of triethanolamine, 5 to 15 parts of triisopropanolamine, 30 to 50 parts of industrial sugar residue, 10 to 30 parts of water and a plurality of parts of mountain flour. Compared with the prior art, the dry-mixed mortar activator is characterized in that: the application range is wide, efflorescence cannot take place, and the strength of mortar at each age can be enhanced.

Description

technical field [0001] The invention relates to the field of dry-mixed mortar additives, in particular to a non-calcining industrial by-product gypsum dry-mixed mortar activator. Background technique [0002] At present, the main varieties of industrial by-product gypsum include desulfurization gypsum produced by thermal power plants, phosphogypsum produced by phosphating chemical plants, fluorogypsum produced by fluorine chemical plants, lemon chemical gypsum produced by lemon chemical plants, titanium gypsum produced by titanium dioxide chemical plants, etc. , the use of these gypsums is mainly to make gypsum products after calcination. This method of utilization is energy-consuming and produces new pollution. By-product gypsum production of dry-mixed mortar technology, the main principle is to use activators to stimulate the activity of related materials. At present, the more effective general-purpose activators mainly include: alum, sodium sulfate, aluminum sulfate, sodi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B24/38
Inventor 赵同习张培清任春燕王爱民王庆珍赵兵
Owner SHANDONG CHENGHUA BUILDING MATERIAL TECH
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