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Novel cement grinding aid and cement thereof

A cement grinding aid, a new type of technology, applied in the field of cement manufacturing, can solve the problems of poor adaptability to process conditions, poor product quality stability, single component, etc., to improve the output per unit, low production cost, and simple production process Effect

Inactive Publication Date: 2017-02-01
GUILIN XINYI REFRIGERATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, defects such as single component, high cost, poor product quality stability, and poor adaptability to process conditions, which are common in my country's grinding aid products, affect the popularization and application of grinding aids. Therefore, it is urgent to develop a class of grinding aids through experimental research. A multifunctional composite grinding aid with excellent grinding aid effect, low cost, stable product performance, and high universality, which can improve the physical properties of cement, stimulate the activity of mixed materials, and increase the amount of mixed materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A new type of cement grinding aid, made of the following raw materials in parts by weight: 6 parts of alcohol amines, 8 parts of sodium polycarboxylate, 4 parts of sodium dodecylsulfonate, 8 parts of diatomaceous earth, saturated fatty acid 4 parts, 5 parts of hydroxyethyl cellulose, 3 parts of molasses, and 8 parts of calcium formate, wherein the alcohol amines are ethanolamine.

[0020] A cement comprising the above-mentioned cement grinding aid, wherein the mass of the grinding aid is 0.05wt% of the mass of the cement.

[0021] The obtained product has no segregation and precipitation phenomenon in long-term storage. Adding it to cement clinker at a dosage of 0.05%, the 3-day flexural strength increased by 3.5MPa, and the compressive strength increased by 3.6MPa.

Embodiment 2

[0023] A new type of cement grinding aid, made of the following raw materials in parts by weight: 9 parts of alcohol amines, 5 parts of sodium polycarboxylate, 5 parts of sodium dodecylsulfonate, 6 parts of diatomaceous earth, saturated fatty acid 6 parts, 4 parts of hydroxyethyl cellulose, 4 parts of molasses, and 6 parts of calcium formate, wherein the alcohol amines are diethanolamine.

[0024] A cement comprising the above-mentioned cement grinding aid, the mass of the grinding aid is 0.07wt% of the cement mass.

[0025] The obtained product has no segregation and precipitation phenomenon in long-term storage. By adding 0.07% into cement clinker, the 3-day flexural strength and compressive strength increased by 3.8MPa.

Embodiment 3

[0027] A new type of cement grinding aid, made of the following raw materials in parts by weight: 12 parts of alcohol amines, 3 parts of sodium polycarboxylate, 6 parts of sodium dodecylsulfonate, 4 parts of diatomaceous earth, saturated fatty acid 8 parts, 3 parts of hydroxyethyl cellulose, 5 parts of molasses, and 4 parts of calcium formate, wherein the alcohol amines are triisopropanolamine.

[0028] A cement comprising the above-mentioned cement grinding aid, wherein the mass of the grinding aid is 0.09 wt% of the cement mass.

[0029] The obtained product has no segregation and precipitation phenomenon in long-term storage. By adding 0.09% into cement clinker, the 3-day flexural strength is increased by 3.6MPa, and the compressive strength is increased by 3.5MPa.

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PUM

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Abstract

The invention discloses a novel cement grinding aid and a cement thereof, and belongs to the field of cement production. The cement grinding aid is produced from, by weight, 6-12 parts of a hydramine substance, 3-8 parts of sodium polycarboxylate, 4-6 parts of sodium dodecyl sulfonate, 4-8 parts of diatomite, 4-8 parts of saturated fatty acids, 3-5 parts of hydroxyethyl cellulose, 3-5 parts of molasses and 4-8 parts of calcium formate. The invention also discloses the cement including the cement grinding aid. The cement grinding aid has the advantages of low admixture amount, good enhancement effect, improvement of the performances of cement and the output per machine hour, and reduction of the production cost of the cement, and the cement produced by using the cement grinding aid has the advantages of small clinker proportion, reduction of environment pollution, and saving of mineral product resources.

Description

technical field [0001] The invention relates to a novel cement grinding aid and cement thereof, belonging to the field of cement manufacture. Background technique [0002] Cement is an indispensable building material in human life and social production. It is used in a wide range and in large quantities, and is known as "the grain of the construction industry". However, the cement production industry pollutes a lot and consumes a lot of energy. In order to save energy and reduce consumption, the best way is to add cement grinding aids during the grinding process. On the one hand, cement grinding aids can increase the output of the cement mill per unit, thereby directly reducing the power consumption of grinding; on the other hand, Cement grinding aids can also stimulate the activity of industrial waste slag and reduce the amount of cement clinker used, thereby saving coal and electricity consumption caused by the production of cement clinker, reducing the emission of air po...

Claims

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Application Information

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IPC IPC(8): C04B24/38C04B103/52
CPCC04B40/0039C04B2103/52C04B24/122C04B24/04C04B24/16C04B14/08C04B24/383C04B24/38
Inventor 陆应生王君
Owner GUILIN XINYI REFRIGERATION EQUIP
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