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

External curing agent for concrete

A curing agent and concrete technology, applied in the field of concrete external curing agent, can solve the problems of reducing the wear resistance and strength of concrete surface, high maintenance cost, high price, etc., and achieve the effect of increasing strength and saving maintenance cost

Inactive Publication Date: 2020-05-12
JIANGSU CHINA RAILWAY ARIT NEW MATEIRALS CO LTD
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of traditional maintenance methods: large water consumption, time-consuming and laborious, incomplete maintenance, high maintenance cost
The disadvantage of water glass is that it has poor water retention performance. The advantage of emulsion curing agent is that it is safe, non-toxic and has a high water retention rate, but it will greatly reduce the wear resistance and strength of the concrete surface.
The advantage of organic solvents is high water retention rate, but the disadvantage is that the price is relatively high, and some will have adverse effects because harmful substances enter the concrete surface and destroy the strength of 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
  • External curing agent for concrete
  • External curing agent for concrete
  • External curing agent for concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A kind of preparation method of external curing agent for concrete is:

[0014] Step 1: take each raw material by weight percentage;

[0015] Modified polyolefin wax emulsion 60%, pure acrylic emulsion 30%, vinyl triethoxysilane coupling agent 0.02%, triethanolamine 0.02%, sodium silicate 3%, tap water 6.96%

[0016] Step 2: Put the weighed raw materials in a forced mixer and mix them evenly to obtain the concrete external curing agent.

[0017] Spray on the surface of concrete components and concrete compressive strength test pieces according to the amount of 1.0Kg / m2, place the concrete components in an environment with a temperature of 40°C and a wind speed of 5m / s, and observe the cracking situation after 3 days; concrete compressive strength test pieces Place it in an environment with a temperature of 20°C±5°C and a humidity of 50%, and wait to test the compressive strength for 7d and 28d. (Test results are listed in Table 1)

Embodiment 2

[0019] A kind of preparation method of external curing agent for concrete is:

[0020] Step 1: Weigh each raw material by weight percentage; modified polyolefin wax emulsion 60%, styrene-acrylic emulsion 30%, vinyltrimethoxysilane coupling agent 0.02%, triisopropanol 0.02%, sodium silicate 3 %, tap water 6.96%

[0021] Step 2: Put the weighed raw materials in a forced mixer and mix them evenly to obtain the concrete external curing agent.

[0022] Spray on the surface of concrete components and concrete compressive strength test pieces according to the amount of 1.0Kg / m2, place the concrete components in an environment with a temperature of 40°C and a wind speed of 5m / s, and observe the cracking situation after 3 days; concrete compressive strength test pieces Place it in an environment with a temperature of 20°C±5°C and a humidity of 50%, and wait to test the compressive strength for 7d and 28d. (Test results are listed in Table 1)

Embodiment 3

[0024] A kind of preparation method of external curing agent for concrete is:

[0025] Step 1: Weigh each raw material by weight percentage; modified polyolefin wax emulsion 60%, styrene-acrylic emulsion 30%, vinyltrimethoxysilane coupling agent 0.02%, triethanolamine 0.03%, sodium silicate 5%, tap water 4.95%

[0026] Step 2: Put the weighed raw materials in a forced mixer and mix them evenly to obtain the concrete external curing agent.

[0027] Spray on the surface of concrete components and concrete compressive strength test pieces according to the amount of 1.0Kg / m2, place the concrete components in an environment with a temperature of 40°C and a wind speed of 5m / s, and observe the cracking situation after 3 days; concrete compressive strength test pieces Place it in an environment with a temperature of 20°C±5°C and a humidity of 50%, and wait to test the compressive strength for 7d and 28d. (Test results are listed in Table 1)

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 external curing agent for concrete. The external curing agent for concrete is prepared from the following raw materials: a modified polyolefin wax emulsion, an organic emulsion, a silane coupling agent, a reinforcing agent and an inorganic densifying component. According to the concrete external curing agent, the modified polyolefin wax emulsion is adopted as a main rawmaterial and contains part of the reinforcing agent; water retention is conducted through the film forming effect of the wax emulsion and the organic emulsion, meanwhile, the reinforcing agent is added to serve as a catalyst, and hydration of the tricalcium aluminate content in concrete and formation of ettringite are accelerated, and a certain reinforcing effect is achieved. According to the concrete external curing agent, the curing cost of concrete is greatly saved, the water retention rate and the compressive strength are greatly improved, and secondary pollution to the surface of the concrete is avoided.

Description

technical field [0001] The invention relates to a curing agent, in particular to a concrete external curing agent. Background technique [0002] Cement concrete is the most widely used building material in the world today, and it has the advantages of strong bearing capacity and good durability. Curing is a means to maintain the water-saturated state of concrete so that cement products can continuously fill the self-water space in fresh concrete. If the maintenance is not timely, the moisture on the concrete surface evaporates too fast, which will cause the moisture in the internal pores to rise to the surface, and the concrete surface will appear powdery and the overall strength will decrease significantly, which will eventually lead to poor durability of the concrete. Traditional concrete curing methods include: water curing, steam curing, and plastic film curing. The main problems of traditional maintenance methods are: large water consumption, time-consuming and labori...

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): C04B41/65
CPCC04B41/009C04B41/5089C04B41/65C04B28/00C04B26/00C04B41/4543C04B41/4861C04B41/4857C04B41/4922C04B41/463
Inventor 邵楷模郑春扬李伟吉飞王可汗李永成蔡晓龙
Owner JIANGSU CHINA RAILWAY ARIT NEW MATEIRALS 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