Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Cement grinding aid

A technology of cement grinding aid and sodium sulfate, which is applied in the field of cement and can solve the problems of long concrete setting time and low concrete strength

Inactive Publication Date: 2016-01-13
重庆市南川区海峰水泥有限公司
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a cement grinding aid to solve the problem that the strength of concrete is not high and the setting time of concrete is long

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Cement grinding aid
  • Cement grinding aid
  • Cement grinding aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0007] Cement grinding aids are configured according to the components and parts by mass in Table 1, Table 2, and Table 3 below.

[0008]

[0009] Table 1

[0010]

[0011]

[0012] Table 2

[0013]

[0014] table 3

[0015] In the above tables, the processing steps are:

[0016] Step 1: At a temperature of 30 degrees Celsius, filter out impurities from the quality pulp waste liquid, add triethanolamine to homogenize (stir well) for 15 minutes, then add urea and ammonium acetate, homogenize for 15 minutes, and then add unsaturated Synthetic polyester resin, the unsaturated polyester resin in this scheme adopts isophthalic unsaturated polyester resin, homogenized for 20 minutes.

[0017] The second step: After mixing and stirring the carboxymethyl cellulose and the sodium sulfate passing the 180 mesh evenly, the mixture is mixed into the components of the first step and stirred evenly again, and the stirring time is 10 minutes . Then store and stop for 24 hours...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a cement grinding aid. The cement grinding aid contains the ingredients in parts by mass: 4-20 parts of triethanolamine, 5-20 parts of ethylene glycol, 5-10 parts of ammoniom acetate, 18-23 parts of urea, 3-5 parts of unsaturated polyester resin, 30-40 parts of paper pulp waste lye, 4-12 parts of carboxymethyl cellulose and 5-10 parts of sodium sulfate. According to the cement grinding aid, carboxymethyl cellulose and sodium sulfate are added based on the original cement grinding aid, and carboxymethyl cellulose in the grinding aid can be used for overcoming the phenomenon of powder agglomeration and improving the gradation of granules. Sodium sulfate can be used for accelerating the hydrating and hardening speed of cement, and the degree of hydration of the cement can be increased through using sodium sulfate and triethanolamine in a matched manner. The condition that the fluidity and cohesion of the cement granules are not high can be changed through using carboxymethyl cellulose and sodium sulfate in a matched manner, the fluidity of cement powder can be improved by hydrophobic groups in carboxymethyl cellulose and hydrophilic group molecules in sodium sulfate, and the powder material can be fully ground, so that the fineness and strength of the cement can be improved.

Description

technical field [0001] The invention relates to the field of cement, in particular to a cement grinding aid. Background technique [0002] Cement grinding aid is an additive that is added to the mill during the cement grinding process to help the grinding without damaging the performance of cement. It can change the dispersion of materials inside the mill and the flow rate of cement, improve the conveying efficiency of cement, and effectively eliminate the phenomenon of electrostatic adsorption of cement fine particles and ball paste grinding, and can increase the output of the mill by about 20%. , while effectively reducing over-grinding, optimizing cement particle gradation, and reducing cement sieve residue. The composite grinding aid also contains an activator that stimulates the potential activity of cement admixtures such as fly ash and slag powder, so as to increase the strength of cement, increase the amount of admixtures in cement production, and reduce the amount ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B24/38C04B22/14C04B103/52
Inventor 丁微
Owner 重庆市南川区海峰水泥有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com