Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of comb-like copolymer concrete superplasticizer

A technology of comb copolymerization and superplasticizer, which is applied in the field of concrete admixtures, can solve problems such as slump loss and unsatisfactory effects, and achieve high slump, good dispersion and retention ability, and good dispersion ability Effect

Active Publication Date: 2009-12-16
JIANGSU SOBUTE NEW MATERIALS
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Most of the unsaturated polyether macromonomers reported in the above patents are carried out in volatile solvents, and the phenomenon of

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
  • Preparation method of comb-like copolymer concrete superplasticizer
  • Preparation method of comb-like copolymer concrete superplasticizer
  • Preparation method of comb-like copolymer concrete superplasticizer

Examples

Experimental program
Comparison scheme
Effect test
No Example Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a preparation method of comb-like copolymer concrete superplasticizers; after a monomer A, a monomer B and a monomer C carry out free radical copolymerization under a condition that water is used as medium, alkaline compound is added for neutralization, and the mole ratio relation (A+B)/C of the monomer A, the monomer B and the monomer C is equal to 1-10 : 1, and A/B is equal to 1 : 10 to 10 : 1. The comb-like copolymer prepared by the invention has good dispersibility and good dispersion maintaining capacity to the cement, and the comb-like copolymer superplasticizer has good dispersibility and good dispersion maintaining capacity to the cement, and can obtain high slump under a condition of low mixture and has good slump maintaining capacity.

Description

technical field [0001] The invention relates to the technical field of concrete admixtures, in particular to a preparation method of a comb-shaped structure copolymer concrete superplasticizer. Background technique [0002] Concrete superplasticizer is currently the most widely used admixture in concrete admixtures. Concrete plasticizers currently used worldwide include the earliest lignosulfonates, melamines, naphthalene series, sulfamates and polycarboxylates. Since the 1990s, polycarboxylate superplasticizers have developed into a new type of high-efficiency water reducer, which has excellent properties such as small dosage, high strength, good dispersion retention, and good durability. Its most prominent feature is that it has little slump loss at high temperature and has good fluidity. It is the high-performance concrete admixture with the largest dosage and the best performance. [0003] The molecular structure design of polycarboxylate superplasticizers is to form s...

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): C08F283/06C04B24/26C04B103/32
Inventor 缪昌文周栋梁冉千平刘加平毛永琳杨勇张志勇
Owner JIANGSU SOBUTE NEW MATERIALS