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Composite high-efficient environment-friendly powdery cement grinding aid

A cement grinding aid and environment-friendly technology, which is applied in the field of compound high-efficiency and environment-friendly powder cement grinding aid, can solve the problems of poor reinforcement effect, poor grinding aid effect, and damage to concrete performance, and achieve the effect of low alkali content.

Active Publication Date: 2010-04-14
山东天汇科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the powder cement grinding aids commonly used in cement enterprises are mostly NaCl, Na 2 SO 3 There are many technical deficiencies and defects in the products that are mainly compounded: more Cl in the cement - 、Na + Ions, harmful to concrete performance; high dosage, mostly more than 1%; poor grinding effect, generally can increase the output of cement grinding table by about 10%; poor strengthening effect, usually can improve the early strength of cement, but can not improve Late strength

Method used

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  • Composite high-efficient environment-friendly powdery cement grinding aid
  • Composite high-efficient environment-friendly powdery cement grinding aid

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0029] Firstly, take 1000Kg of citric acid slag, and after ultrasonic treatment for 2 hours, crush it to about 40 mesh with a pulverizer to obtain the treated citric acid slag; the ultrasonic frequency is 40KHz, and the power is 50KW.

[0030] Add 60Kg of molasses, 10Kg of triethanolamine and 30Kg of triisopropanolamine into a stirring tank, add water to make a 60% aqueous solution; add 100Kg of calcium lignosulfonate to a stirring tank, add water to make a 30% aqueous solution.

[0031] Weigh 450Kg of the citric acid slag after the above treatment, add 150Kg of fly ash into the conical mixer, add the above solution while stirring, and then stir for 10 minutes; weigh 80Kg of anhydrous sodium sulfate, 70Kg of sodium silicate, and 60Kg of slaked lime in turn Add to the conical mixer while stirring; finally stir for 15 minutes, and the finished product is discharged.

[0032] The above-mentioned composite high-efficiency and environment-friendly powder cement grinding aid is used...

example 2

[0038] First, take 1000Kg of citric acid slag, and after ultrasonic treatment for 4 hours, crush it to about 40 mesh with a pulverizer to obtain the treated citric acid slag; the ultrasonic frequency is 30KHz, and the power is 40KW.

[0039] Add 80Kg of molasses, 20Kg of triethanolamine and 10Kg of triisopropanolamine into a stirring tank, add water to make a 60% aqueous solution; add 160Kg of calcium lignosulfonate to a stirring tank, add water to make a 30% aqueous solution.

[0040] Weigh 420Kg of the citric acid slag after the above treatment, add 100Kg of fly ash into the conical mixer, add the above solution while stirring, and then stir for 10 minutes; weigh 50Kg of anhydrous sodium sulfate, 100Kg of sodium silicate, and 60Kg of slaked lime in turn Add to the conical mixer while stirring; finally stir for 15 minutes, and the finished product is discharged.

[0041] The above-mentioned composite high-efficiency and environment-friendly powder cement grinding aid is used ...

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Abstract

The invention belongs to the technical field of cement technology admixtures, and particularly relates to a composite high-efficient environment-friendly powdery cement grinding aid which is made by materials with the following weight ratio: 40 to 50 percent of treated citric acid slag, 10 to 20 percent of flyash, 5 to 10 percent of molasses, 5 to 10 percent of anhydrous sodium sulfate, 5 to 10 percent of sodium silicate, 1 to 3 percent of triethanolamine, 1 to 3 percent of tri-isopropanolamine, 5 to 10 percent of slaked lime, and 10 to 20 percent of calcium lignosulphonate. The treated citric acid slag is obtained by ultrasonication. The composite high-efficient environment-friendly powdery cement grinding aid has the beneficial effects of: wide applicability, low dosing amount, improved grinding aiding effect, improved early-stage strength and later-stage strength of cement, saved cement clinker, adoption of industrial residue as the main body, and being green and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of cement process admixtures, and in particular relates to a composite high-efficiency and environment-friendly powder cement grinding aid. Add this kind of grinding aid in the grinding process of cement production to achieve the effect of increasing grinding efficiency and improving cement performance. Background technique [0002] At present, the powder cement grinding aids commonly used in cement enterprises are mostly NaCl, Na 2 SO 3 There are many technical deficiencies and defects in the products that are mainly compounded: more Cl in the cement - 、Na + Ions, harmful to concrete performance; high dosage, mostly more than 1%; poor grinding effect, generally can increase the output of cement grinding table by about 10%; poor strengthening effect, usually can improve the early strength of cement, but can not improve late strength. Contents of the invention [0003] In order to solve the deficiencie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
CPCC04B2103/52C04B2111/00017C04B40/0039Y02W30/91C04B12/04C04B18/08C04B18/18C04B20/026C04B22/064C04B22/147C04B24/122C04B24/18C04B28/02
Inventor 王盛海周俊华
Owner 山东天汇科技有限公司
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