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

Additive for improving early strength of white cement and preparation method and application of additive

An early strength and admixture technology, which is applied in the field of preparation of admixtures to improve the early strength of white cement, can solve the problems of white cement strength shrinkage, strength shrinkage, and large dosage

Pending Publication Date: 2020-10-27
XINYANG LINGSHI TECH CO LTD +1
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But white C in mineral phase of cement 3 A and C 4 The content of AF is very low, resulting in low early strength of white cement, and conventional alcohol amine accelerators have no stimulating effect on the strength of white cement, traditional alcohol amine substances can also lead to shrinkage of white cement strength, early strength of inorganic salt components There are problems such as large dosage, efflorescence, and later strength shrinkage

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
  • Additive for improving early strength of white cement and preparation method and application of additive
  • Additive for improving early strength of white cement and preparation method and application of additive
  • Additive for improving early strength of white cement and preparation method and application of additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Get 15 parts of phosphonoglycolic acid, 15 parts of hydroxyethylidene diphosphonic acid, 10 parts of tetrasodium aminotrimethylene phosphonate, 10 parts of sodium thiocyanate and 50 parts of water.

[0020] Add water to the reaction kettle, then add tetrasodium aminotrimethylene phosphonate and sodium thiocyanate, fully dissolve and stir evenly, then add phosphonoglycolic acid and hydroxyethylenediphosphonic acid dropwise, and continue stirring after the dropwise addition 15 minutes to get the finished product.

Embodiment 2

[0022] Get 15 parts of phosphonoglycolic acid, 15 parts of hydroxyethylene diphosphonic acid, 10 parts of ethylenediamine tetramethylene phosphonic acid, 5 parts of tetrasodium aminotrimethylene phosphonate, 6 parts of sodium thiocyanate and 49 parts of water.

[0023] Add water to the reaction kettle, then add tetrasodium aminotrimethylene phosphonate and sodium thiocyanate, fully dissolve and stir evenly, then add dropwise phosphonoglycolic acid, hydroxyethylene diphosphonic acid, ethylenediamine tetramethylene Phosphonic acid, after the dropwise addition, continued to stir for 15 minutes to obtain the finished product.

Embodiment 3

[0025] Get 15 parts of ethylenediamine tetramethylene phosphonic acid, 8 parts of disodium hydroxyethylidene diphosphonate, 10 parts of tetrasodium aminotrimethylene phosphonate, 10 parts of sodium thiocyanate and 57 parts of water.

[0026] Add water to the reaction kettle, then add tetrasodium aminotrimethylene phosphonate, tetrasodium aminotrimethylene phosphonate, sodium thiocyanate, fully dissolve and stir evenly, then add ethylenediamine tetramethylene phosphonic acid dropwise, drop Continue stirring for 15 minutes after the addition to obtain the finished product.

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 an additive for improving early strength of white cement, a preparation method and application thereof, and belongs to the technical field of additives. The additive is mainlycomposed of phosphonoglycolic acid, Hydroxyethylidene-1,1-diphosphonic acid, ethylenediamine tetramethylene phosphonic acid, disodium hydroxyethylidene diphosphonate, tetrasodium aminotrimethylene phosphonate, sodium thiocyanate and water; through the chelating effect of organic phosphonate ions with an extremely strong chelating effect in the additive and calcium ions, the concentration of soluble calcium ions of white cement in hydrated slurry is increased, and then the dissolution and hydration rates of mineral components of the white cement are promoted, and the effect of improving the early strength of the white cement is achieved; the addition amount of the additive is 0.03%-0.2% of the weight of the white cement, and the 1-day strength and the 3-day strength can be improved by 5-15%.

Description

technical field [0001] The invention belongs to the technical field of white cement admixtures, in particular to an admixture for improving the early strength of white cement, a preparation method and an application thereof. Background technique [0002] White Portland cement is a hydraulic cementitious material made by grinding white Portland cement clinker with less iron oxide content, appropriate amount of gypsum and mixed materials (limestone and kiln dust), referred to as white cement, and is mainly used in construction. Decoration of objects, such as floors, stairs, steps and exterior wall finishes, colored terrazzo and terrazzo manufacturing, finishing mortar, artificial stone cutting, cement roughening process, marble and tile inlays, concrete sculpture products, etc. White cement is mainly used in decoration projects and requires excellent early strength. But white C in mineral phase of cement 3 A and C 4 The content of AF is very low, resulting in low early stre...

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): C04B24/12C04B24/06C04B24/00
CPCC04B40/0039C04B24/06C04B24/003C04B24/121
Inventor 肖学党孟旭燕唐官保肖梦晨朱军团吴同耀叶超
Owner XINYANG LINGSHI 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