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

A kind of high-stability low-alkali liquid quick-setting agent and preparation method thereof

A technology of high stability and quick-setting agent, which is applied in the field of concrete admixtures, can solve the problems of poor stability period, strong pungent smell, and low strength retention rate of accelerators, and achieve fast setting speed, good long-term storage and stability good sex effect

Active Publication Date: 2021-04-30
GUIZHOU TIEJIANHENGFA NEW MATERIAL TECH CO LTD
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The low-alkali liquid quick-setting agent prepared by the invention can solve the problems of poor stability of the quick-setting agent, low 28-day strength retention rate, strong pungent smell, poor adaptability, etc.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] According to the mass percentage of each component of aluminum sulfate, sodium fluoride, stabilizer and water, first heat 285 grams of water to 55°C, and then add 90 grams of sodium fluoride to the above water in three batches, with an interval of 10 minutes each time, Stir for 30 minutes; then add 500 industrial-grade aluminum sulfate octadecahydrate in three batches, with an interval of 10 minutes each time, raise the temperature to 78 ° C, and stir for 60 minutes; add 35 grams of ethanolamine phosphate, stir for 30 minutes, cool to obtain a uniform and stable The liquid, obtains the high-stability low-alkali liquid quick-setting agent of the present invention.

Embodiment 2

[0014] According to the mass percentage of each component of aluminum sulfate, sodium fluoride, stabilizer and water, first heat 285 grams of water to 55°C, and then add 90 grams of sodium fluoride to the above water in three batches, with an interval of 10 minutes each time, Stir for 30 minutes; then add 500 g of industrial grade aluminum sulfate octadecahydrate in three batches, with an interval of 10 minutes each time, raise the temperature to 78 ° C, and stir for 60 minutes; add 35 grams of diethanolamine phosphate, stir for 30 minutes, cool to obtain a uniform stable liquid, that is, the high-stability and low-alkali liquid quick-setting agent of the present invention.

Embodiment 3

[0016] According to the mass percentage of each component of aluminum sulfate, sodium fluoride, stabilizer and water, first heat 285 grams of water to 55°C, and then add 90 grams of sodium fluoride to the above water in three batches, with an interval of 10 minutes each time, Stir for 30 minutes; then add 500 g of industrial grade aluminum sulfate octadecahydrate in three batches, with an interval of 10 minutes each time, raise the temperature to 78 ° C, and stir for 60 minutes; add 35 grams of triethanolamine phosphate, stir for 30 minutes, cool to obtain a uniform stable liquid, that is, the high-stability and low-alkali liquid quick-setting agent of the present invention.

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 high-stability low-alkali liquid quick-setting agent and a preparation method thereof. The quick-setting agent is composed of aluminum sulfate, sodium fluoride, a stabilizer and water; the mass percentage of each component is: aluminum sulfate: 45 ‑60%, sodium fluoride: 8‑15%, stabilizer 5‑10%, and the remainder is water; the stabilizer is ethanolamine phosphate, diethanolamine phosphate, triethanolamine phosphate, triethanolamine borate and One or more mixtures of borated diethanolamine phosphates. The production raw materials of the high-stability and low-alkali liquid quick-setting agent provided by the invention are easy to obtain, the required equipment has no special requirements, the operation is simple, the long-term storage stability is good, the adaptability to cement varieties is wide, the dosage is low, and the setting speed is fast And high strength characteristics.

Description

technical field [0001] The invention belongs to the technical field of concrete admixtures, and in particular relates to a high-stability and low-alkali liquid quick-setting agent and a preparation method thereof. Background technique [0002] Accelerator is a coagulation regulator that can accelerate the setting and hardening of cement or concrete. It is widely used in shotcrete, filling water-stop concrete and emergency repair and strengthening projects. There are many kinds of accelerators. According to the nature and state of accelerators, they can be roughly divided into four categories: alkaline powder, alkali-free powder, alkaline liquid and alkali-free (low-alkali) liquid. At present, both at home and abroad are gradually paying attention to the research and development of non-alkali (low alkali) liquid accelerators. Compared with traditional alkaline accelerators, it can reduce the skin corrosion of construction personnel, improve the adaptability to cement, and imp...

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 Patents(China)
IPC IPC(8): C04B24/12C04B103/12
CPCC04B40/0039C04B2103/12C04B22/148C04B22/126C04B24/122
Inventor 刘先勇李本秀陈娟许志顺王毓万国君陈凯陈尧
Owner GUIZHOU TIEJIANHENGFA NEW MATERIAL TECH CO LTD
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