Chlorine-free rust-proof concrete early strength water-reducing agent and preparation method thereof

An early-strength water-reducing agent and concrete technology, applied in the field of concrete admixtures, can solve the problems of corrosion of concrete steel bars, cracking of concrete, inability to meet high-performance concrete and other problems, and achieve good early-strength effect, high water reduction rate, and anti-cracking effect. Good results

Inactive Publication Date: 2016-12-21
安徽海洋新型建材科技有限公司
View PDF1 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the addition of chloride salts makes the Cl in concrete － Increased concentration will easily corrode the steel bars in the concrete and lead to cracking of the concrete, which cannot meet the requirements of high-performance concrete

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
  • Chlorine-free rust-proof concrete early strength water-reducing agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] A chlorine-free antirust concrete early-strength water reducer, which is composed of the following raw materials by weight (kg): sulfonated melamine formaldehyde resin 16, p-aminobenzenesulfonate-sulfonated acetone-formaldehyde condensate 12, starch-acrylic acid glue Branch copolymer 10, calcium butyrate 6, sodium sulfate 8, magnesium chromate 6, poly(4-styrenesulfonic acid-copolymerization-maleic acid) sodium salt 12, pullulan 9, urea 4, polyacrylic acid Sodium6.

[0013] A preparation method of chlorine-free antirust concrete early-strength water reducer, comprising the following steps:

[0014] (1) The sulfonated melamine formaldehyde resin, p-aminobenzenesulfonate-sulfonated acetone-formaldehyde condensate, starch-acrylic acid graft copolymer, poly(4-styrenesulfonic acid-copolymerization-maleic acid) sodium salt Mix evenly, then add in the ball mill, control the ball-to-material ratio to be 8:1, the rotating speed is 550r / min, dry ball mill for 7h, then add pullula...

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 chlorine-free rust-proof concrete early strength water-reducing agent and a preparation method thereof. The chlorine-free rust-proof concrete early strength water-reducing agent is made from, by weight, 12-18 parts of sulfonated melamine formaldehyde resin, 10-15 parts of sulfanilate, sulfonated acetone and formaldehyde condensate, 8-12 parts of starch and acrylic acid grafted copolymer, 4-8 parts of calcium butyrate, 6-9 parts of anhydrous sodium sulfate, 4-8 parts of magnesium chromate, 10-15 parts of poly(4-styrenesulfonic acid-co-maleic acid) sodium salt, 7-11 parts of Pulullan, 3-6 parts of urea, and 5-7 parts of sodium polyacrylate. The calcium butyrate, anhydrous sodium sulfate, Pulullan, urea and sodium polyacrylate replace chloride early strength agents to be used with the water-reducing agents such as sulfonated melamine formaldehyde resin, sulfanilate, sulfonated acetone and formaldehyde condensate, and poly(4-styrenesulfonic acid-co-maleic acid) sodium salt, and the water-reducing agent has high water-reducing rate and good early strength effect, is free of chlorine ions, is rust-free for reinforcement and is good in anti-cracking effect.

Description

technical field [0001] The invention relates to a chlorine-free antirust concrete early-strength water reducer and a preparation method thereof, belonging to the technical field of concrete admixtures. Background technique [0002] Concrete has become the most commonly used building material in today's society, and concrete water reducer is one of the commonly used admixtures for concrete. It can greatly reduce the water consumption of concrete mixing under the condition of keeping the slump basically the same. It always has good workability during transportation and construction. With the development of concrete science and the improvement of engineering requirements, the performance requirements of concrete water reducers are getting higher and higher. At present, the traditional concrete water reducers mainly include lignosulfonate, melamine and naphthalenesulfonate formaldehyde condensate. , These water reducers are generally mixed with chloride salt early strength agen...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B103/30
CPCC04B40/0039C04B2103/302C04B24/305C04B24/166C04B24/38C04B24/04C04B22/147C04B22/087C04B24/163C04B24/126C04B24/26
Inventor 林运海
Owner 安徽海洋新型建材科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap