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

Preparation method for sodium metasilicate nonahydrate liquid concrete accelerator

A technology of sodium metasilicate nonahydrate and a preparation method, which is applied in the preparation field of sodium metasilicate nonahydrate liquid concrete quick-setting agent, can solve problems such as inconvenience in use, and achieve simple process, convenient use method and good product quality. Effect

Inactive Publication Date: 2013-08-14
张云侠
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commodities include anhydrous, pentahydrate and nonahydrate, of which nonahydrate only exists in the Chinese market, the molecular formula of sodium metasilicate nonahydrate is Na2SiO3 9H2O, the crystal water content reaches 58%, and the solubility (20°C) is 38 grams / 100 grams of water, but the dissolution rate is fast, at 30-40 ℃, it will release crystal water, which brings inconvenience to use, especially suitable for Portland cement

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

[0011] Send 60% of the total water into the chemical reaction kettle, adjust the temperature to 16°C-18°C while stirring, slowly add 25% of the total amount of sodium metasilicate nonahydrate until it is completely dissolved; continue Stir, control the temperature below 15°C, and sequentially add aluminum sulfate accounting for 4% of the total amount, sodium nitrite accounting for 3% of the total amount, potassium dichromate accounting for 3% of the total amount, and 5% of the total amount The triethanolamine is added into the chemical reaction kettle, and stirred evenly to obtain the finished sodium metasilicate nonahydrate liquid concrete accelerator; can be added here.

Embodiment 2

[0013] Send water accounting for 61% of the total amount into the chemical reaction kettle, adjust the temperature to 16°C-18°C while stirring, and slowly add sodium metasilicate nonahydrate accounting for 24% of the total amount until it is completely dissolved; continue Stir, control the temperature below 15°C, and sequentially add aluminum sulfate accounting for 4% of the total amount, sodium nitrite accounting for 3% of the total amount, potassium dichromate accounting for 3% of the total amount, and 5% of the total amount The triethanolamine is added into the chemical reaction kettle, and stirred evenly to obtain the finished sodium metasilicate nonahydrate liquid concrete accelerator; can be added here.

Embodiment 3

[0015] Send water accounting for 62% of the total amount into the chemical reaction kettle, adjust the temperature to 16°C-18°C while stirring, and slowly add sodium metasilicate nonahydrate accounting for 23% of the total amount until it is completely dissolved; continue Stir, control the temperature below 15°C, and sequentially add aluminum sulfate accounting for 4% of the total amount, sodium nitrite accounting for 3% of the total amount, potassium dichromate accounting for 3% of the total amount, and 5% of the total amount The triethanolamine is added into the chemical reaction kettle, and stirred evenly to obtain the finished sodium metasilicate nonahydrate liquid concrete accelerator; can be added here.

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 preparation method for a sodium metasilicate nonahydrate liquid concrete accelerator, and belongs to the field of chemical building materials. The concrete accelerator is prepared by using sodium metasilicate nonahydrate, water, aluminum sulfate, sodium nitrite, potassium dichromate and triethanolamine as raw materials and through a method of mixing the raw materials at a specific temperature. The preparation method is simple in process, low in production cost and good in product quality. The sodium metasilicate nonahydrate liquid concrete accelerator is simple in usage method, is particularly suitable for being added in silicate concrete, and has the effects of making the concrete solidified rapidly and early strengthened. Besides, the sodium metasilicate nonahydrate liquid concrete accelerator is small in toxicity, and has no influence on physical health of operation staffs who are engaged in spraying the concrete.

Description

technical field [0001] The product of the invention belongs to the field of chemical building materials, and in particular relates to a preparation method of sodium metasilicate nonahydrate liquid concrete quick-setting agent. Background technique [0002] Concrete quick-setting agent is an admixture mixed into concrete that can make concrete harden quickly. It looks like powdery solid or liquid. Their function is to accelerate the hydration and hardening of cement and form sufficient strength in a short time. , to ensure special construction requirements, it is an indispensable additive in the shotcrete construction method. Sodium metasilicate is one of the raw materials for preparing concrete quick-setting agent. Sodium metasilicate is a low-molecular crystal obtained by the hydrothermal reaction of ordinary foaming soda and caustic soda. Its chemical formula is Na2SiO3, its melting point is 1088°C, and its density is 2.4 g / cm , Soluble in water, the viscous aqueous solut...

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): C04B24/12C04B103/12
Inventor 不公告发明人
Owner 张云侠
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