Enhanced cement composite grinding aid

A grinding aid and enhanced technology, which is applied in the field of cement additives, can solve the problems of no contribution to strength and failure to increase the early strength of cement, etc., and achieve the effect of excellent enhancement performance and perfect comprehensive performance

Inactive Publication Date: 2010-03-10
惠州市富力新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The prominent feature of triethanolamine used in cement grinding aids is that it can increase the cement’s 1-day mortar strength, but it does not contribute to the strength of 28 days and beyond; many cement grinding aids also use triisopropanolamine to enhance cement’s 7 1 day, 28 days or later, but triisopropanolamine cannot increase the early strength of cement within 1 day or 7 days

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh each component according to the following weight percentages: diethanol isopropanolamine 60%, molasses 10%, lignosulfonate 10%, sodium polyphosphate 5%, water 15%, put into the same beaker after weighing and mix Stir well to get cement grinding aid.

Embodiment 2

[0016] Weigh each component according to the following weight percentage: diethanol isopropanolamine 70%, molasses 5%, lignin sulfonate 15%, water 15%, put into the same beaker after weighing and mix well to obtain cement grinding aid .

Embodiment 3

[0018] Weigh each component according to the following weight percentage: diethanol isopropanolamine 80%, molasses 5%, lignosulfonate 5%, sodium polyphosphate 5%, water 5%, put into the same beaker after weighing and mix Stir well to get cement grinding aid.

[0019] Use a small cement test mill, take materials with the same ratio, add 0.03% of the cement grinding aids described in Example 1, Example 2 and Example 3, and grind for the same time. The physical and mechanical properties of the obtained cement are shown in the following table.

[0020]

[0021] It can be seen from the above table that the enhanced cement composite grinding aid of the present invention can not only improve the grinding fineness of cement, but also increase the specific surface area of ​​cement, and the most important thing is to significantly improve the strength of each age. Adding the grinding aid of the present invention will not have adverse effects on other properties of the cement.

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PUM

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Abstract

The invention patent relates to an enhanced cement composite grinding aid, pertaining to a cement additive. The enhanced cement composite grinding aid has the following main ingredients in percentagesby weight: 45 percent to 90 percent of diethanol isopropanolamine, 10 percent to 30 percent of molasses, 5 percent to 20 percent of lignosulphonate, 0 percent to 15 percent of inorganic dispersant and 0 percent to 30 percent of water. The main ingredient of the grinding aid, diethanol isopropanolamine, is a substitute for trolamine and triisopropanolamine in respect of property and the property thereof is superior to single trolamine or triisopropanolamine grinding aid. The application of the enhanced cement composite grinding aid to cement production can effectively increase output per machine hour of a grinder, improve cement strength in early period and later period, and reduce cement production cost.

Description

technical field [0001] The patent of the present invention relates to an enhanced cement composite grinding aid, which belongs to cement additives. Background technique [0002] my country is a big country in cement production and consumption. Cement production needs to consume a lot of resources and energy, and emit a certain amount of air pollutants to the natural environment. In the process of cement production, the environmental load of the two processes of "clinker calcination" and "cement grinding" is the most serious. Among them, grinding is an important process of cement production. For every ton of cement produced, various materials need to be ground About three tons, the power consumption of the grinding process accounts for about 60-70% of the total power consumption of cement production. If the cement industry wants to maintain sustainable development, it must take measures to reduce resource and energy consumption and reduce the emission of harmful substances t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
CPCC04B24/18C04B2103/52Y02P40/10
Inventor 邬桂林徐志芳
Owner 惠州市富力新技术有限公司
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