Chlorine-free highly effective composite enhanced solid cement grinding aids and production method

A cement grinding aid and composite reinforcement technology, applied in the field of cement grinding aid, can solve the problems of poor universality, single function, high price, etc., and achieve the effects of strong adaptability, simple preparation process and low dosage

Inactive Publication Date: 2008-06-18
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A single grinding aid will inevitably have problems such as poor universality, single function, and high price during use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] First 5g triethanolamine, 5g ethylene glycol, 5g propylene glycol, 35g pulp waste liquid are added in the reaction vessel, add 50g of water and stir evenly, then add 5g of unslaked lime, 5g of aluminum sulfate and 40g of sodium acetate, the system is heated up to 60°C and continue to stir for 3.5 hours to disperse the whole system evenly. Add this mixture to the inorganic mineral raw materials composed of 100g fly ash, 400g sodium carbonate, and 300g sodium silicate, and add 50g of sodium dihydrogen phosphate. Grind and stir until well combined. That is, the required chlorine-free high-efficiency composite reinforced solid cement grinding aid material can be obtained. The new grinding aid provided by the invention has obvious grinding aid effect on cement when the addition amount is 0.5%, the sieve allowance is reduced, and the 3-day compressive strength of the cement sample can be increased by 3-8MPa under the condition of the same process conditions , the 28-day comp...

Embodiment 2

[0020] First, 10g ethylene glycol, 15g propylene glycol, and 15g pulp waste liquid are added to the reaction vessel, and 40g of water is added to stir evenly, then 5g of sodium hydroxide, 5g of aluminum sulfate and 40g of urea are added, and the system is heated to 100°C and Continue to stir for 2 hours to disperse the whole system evenly, add the mixture to the inorganic mineral raw materials composed of 200g fly ash, 350g sodium carbonate, and 250g sodium silicate, and add 70g of sodium dihydrogen phosphate, grind and stir the above-mentioned materials until well mixed. That is, the required chlorine-free high-efficiency composite reinforced solid cement grinding aid material can be obtained. The new grinding aid provided by the invention has obvious grinding aid effect on cement when the addition amount is 0.4%, the sieve allowance is reduced, and the 3-day compressive strength of the cement sample can be increased by 3-8MPa under the condition of constant process condition...

Embodiment 3

[0023] First, 10g of ethylene glycol, 15g of glycerol, and 15g of pulp waste liquid are added to the reaction vessel, and 20g of water is added to stir evenly, then 35g of quicklime, 75g of aluminum sulfate and 70g of urea are added, and the system is heated to 80°C and Continue to stir for 0.5 hour to disperse the whole system evenly, add the mixture to the inorganic mineral raw materials composed of 50g fly ash, 600g sodium carbonate, and 50g sodium silicate, and add 60g of sodium dihydrogen phosphate, grind and stir the above-mentioned materials until well mixed. That is, the required chlorine-free high-efficiency composite reinforced solid cement grinding aid material can be obtained. The new grinding aid provided by the invention has an obvious grinding aid effect on cement when the addition amount is 0.3%, the sieve allowance is reduced, and the compressive strength of the cement sample can be increased by 3-8MPa in 3 days under the condition of the same process conditio...

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PUM

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Abstract

The invention provides a chlorine-free high-efficiency composite reinforcing type solid cement grinding aid and production method, the grinding aid is composed of inorganic substrate material, organic material and water, strong antifreeze and antirust; the inorganic substrate material is composed of powder coal ash, sodium carbonate and sodium silicate, the mixing solution of any three or four among triethanolamine, glycol, propanediol, glycerolor paper pulp waste liquid is selected as the organic material, the inorganic strong antifreeze is composed of aluminum sulfate, calces or sodium hydrogen, sodium acetate or carbamide, and the antirust is sodium dihydrogen phosphate. The production method is the following: first the inorganic strong antifreeze is utilized to perform the complexation and modification of the organic material solution, and then the obtained mixing solution and the inorganic substrate material are furthermore compounded, reacted, blended and crushed. The invention has simple process, low cost, wide application range, good anti-freezing anti-rusting functions, and can improve later strength of cement obviously without disadvantage influence, and also obviously reduce the using amount of cement clinker by 20 percent, thereby having outstanding economical benefit.

Description

technical field [0001] The invention relates to a novel cement grinding aid and a large-scale production method thereof, in particular to a chlorine-free high-efficiency composite enhanced solid cement grinding aid and a production method thereof. Background technique [0002] The selection of suitable cement grinding aids can greatly improve the efficiency of cement grinding, reduce power consumption, and thus improve the economic benefits of the cement industry. Currently commonly used grinding aids include inorganic components such as fly ash, sodium chloride, and stearate, and polar organic substances such as alcohol amines and polycarboxylates. A single grinding aid will inevitably have problems such as poor universality, single function, and high price during use. In recent years, the research and development of multi-formulation, multi-performance, high-efficiency compound grinding aids has become a research hotspot in this field. Since the current national cement s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B22/16C04B18/24C04B24/12C04B103/52
CPCC04B2103/52C04B2111/1062C04B40/0039Y02W30/91C04B14/045C04B14/26C04B18/08C04B18/241C04B24/02C04B24/122C04B24/32C04B28/02C04B40/0032C04B2103/601C04B2103/61C04B22/064C04B22/148C04B22/16C04B24/04C04B24/126
Inventor 石勇薛方红薛冬峰王立秋邹龙江
Owner DALIAN UNIV OF TECH
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