Liquid composite cement grinding aid and preparation method thereof

A technology for compounding cement and grinding aid, which is applied in the field of cement admixtures, can solve the problems of rapid growth in the early strength of cement of various mineral components of cement, poor performance in terms of cement performance and quality, and slow growth in later strength. and over-grinding phenomenon, various performance and quality improvement, and the effect of increasing the dosage

Inactive Publication Date: 2010-05-19
YANGCHENG JIXIN BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention solves the problem that the existing cement grinding aids easily lead to the bottleneck effect of the reaction between the various mineral components of the cement, so that the early strength of the cement increases quickly and the later strength increases slowly, and the effect of improving the performance and quality of the cement in various aspects is poor, etc. Problem, provide a kind of liquid composite cement grinding aid and preparation method thereof

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  • Liquid composite cement grinding aid and preparation method thereof

Examples

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Effect test

Embodiment 1

[0019] Example 1: 1 kg per serving

[0020] A kind of liquid composite cement grinding aid, is made up of the raw material of following parts by weight: 200 kilograms of coconut acid diethanolamide, 300 kilograms of water, 100 kilograms of acetic acid, 50 kilograms of melamine, 10 kilograms of sodium nitrite, 20 kilograms of sodium acetate, 20 kilograms of sodium thiosulfate, 20 kilograms of molasses, 20 kilograms of sodium hexametaphosphate, 10 kilograms of calcium lignosulfonate, 4 kilograms of soaps, and preparation method comprises the following steps: (1) earlier sodium nitrite, sodium acetate, thiosulfuric acid Sodium, sodium hexametaphosphate, and calcium lignosulfonate were mixed into water in proportion to prepare solution A; (2) Then, coconut acid diethanolamide, acetic acid, melamine, and molasses were added in proportion to the reaction tank and stirred, and the temperature was controlled at 40°C , stirred at constant temperature for 25 minutes, and at the same tim...

Embodiment 2

[0021] Example 2: 1 kg per serving

[0022] A kind of liquid composite cement grinding aid, is made up of the raw material of following parts by weight: 600 kilograms of cocoate diethanolamide, 600 kilograms of water, 300 kilograms of acetic acid, 150 kilograms of melamine, 15 kilograms of sodium nitrite, 30 kilograms of sodium acetate, 50 kilograms of sodium thiosulfate, 60 kilograms of molasses, 30 kilograms of sodium hexametaphosphate, 30 kilograms of calcium lignosulfonate, 5 kilograms of soaps, and preparation method comprises the following steps: (1) earlier sodium nitrite, sodium acetate, thiosulfuric acid Sodium, sodium hexametaphosphate, and calcium lignosulfonate were mixed into water in proportion to prepare solution A; (2) Then, coconut acid diethanolamide, acetic acid, melamine, and molasses were added in proportion to the reaction tank and stirred, and the temperature was controlled at 60°C , stirred at constant temperature for 40 minutes, and at the same time, c...

Embodiment 3

[0023] Example 3: 1 kg per serving

[0024] A kind of liquid composite cement grinding aid, is made up of the raw material of following weight in kilograms: 200 kilograms of coconut acid diethanolamide, 600 kilograms of water, 100 kilograms of acetic acid, 50 kilograms of melamine, 15 kilograms of sodium nitrite, 20 kilograms of sodium acetate, 45 kilograms of sodium thiosulfate, 30 kilograms of molasses, 30 kilograms of sodium hexametaphosphate, 10 kilograms of calcium lignosulfonate, 4 kilograms of soaps, and preparation method comprises the following steps: (1) earlier make sodium nitrite, sodium acetate, thiosulfuric acid Sodium, sodium hexametaphosphate, and calcium lignosulfonate were mixed into water in proportion to prepare solution A; (2) Then, coconut acid diethanolamide, acetic acid, melamine, and molasses were added in proportion to the reaction tank and stirred, and the temperature was controlled at 40°C , stirred at constant temperature for 30 minutes, and at the...

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Abstract

The invention relates to a cement additive, in particular to liquid composite cement grinding aid and a preparation method thereof, which solve the problems of bottleneck effect occurring in reactions among various components in cement caused by conventional cement grinding aid, poor effect in improving performance of each aspect of the cement and the like. The grinding aid is prepared from coconut oil diethan olamide, water, acetic acid, melamine, sodium nitrite, sodium acetate, sodium thiosulfate, molasses, sodium hexametaphosphate, calcium lignosulfonate and soap, can provide an intermediate platform for reactions among the components in the cement to ensure that the components in the cement can generate compound synergy and additive effects with one another, and more effectively excites potential activity of raw material components, thereby receiving sufficient reactions to play respective grinding aid effect in a powder grinding process, effectively eliminating ball stick and over grinding phenomena, improving the specific surface area of the cement, and simultaneously improving the machine-hour output of a cement mill; and the product which is added with 0.1 weight percent of cement can improve the 3-day strength of the cement by 4 to 7MPa, and improve the 28-day strength of the cement by 3 to 6MPa.

Description

technical field [0001] The invention relates to a cement admixture, in particular to a liquid composite cement grinding aid and a preparation method thereof. Background technique [0002] Population expansion, resource shortage and environmental degradation are the three major problems facing human society today. Taking the road of sustainable development has become the consensus of the world and the strategic goal of future development. my country is a big cement producing country, and its cement production has always ranked first in the world. However, for a long time, most of our cement enterprises still use shaft kilns and wet kilns to calcinate cement clinker. The cement produced by this method has high energy consumption. The dust is large, the amount of clinker is large, the consumption of limestone resources is large, the utilization rate of waste slag is low, and the quality of the cement produced is not high. This technology is completely unsuitable for the requirem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/18C04B103/52
CPCC04B2103/52C04B40/0039
Inventor 郭建斌张杰
Owner YANGCHENG JIXIN BUILDING MATERIAL
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