Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation process of high-performance polycarboxylic acid water reducer applied to concrete

A kind of polycarboxylic acid series, preparation technology technology, applied in the field of concrete water reducing agent

Active Publication Date: 2021-05-18
QINGHAI XINGLI HIGHWAY & BRIDGE ENG CO
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-reducing agent prepared by this method still has a large room for improvement in the effect of increasing the strength of concrete in a short period of time, so the present invention provides a preparation process for a high-performance polycarboxylate-based water-reducing agent applied to 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
  • Preparation process of high-performance polycarboxylic acid water reducer applied to concrete
  • Preparation process of high-performance polycarboxylic acid water reducer applied to concrete
  • Preparation process of high-performance polycarboxylic acid water reducer applied to concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation process of a high-performance polycarboxylate water reducer applied to concrete, comprising the following steps:

[0027] A. Dissolving the surfactant in ethanol, adding a hydrophilic fullerene derivative, performing mechanical stirring, ball milling, ultrasonic reaction treatment in sequence, and spray drying to obtain a surface-modified fullerene;

[0028] B. Take 100 parts of allyl polyoxyethylene ether in parts by mass, mix 40-60 parts of surface-modified fullerene and 3-8 parts of concentrated sulfuric acid, stir and heat up to 60-75°C, keep warm and ultrasonically treat for 30 -45min, obtain fullerene modified allyl polyoxyethylene ether;

[0029] C, then add 5-15 parts of methacrylic acid, 1-3 parts of sodium methacryl sulfonate, 0.1-0.4 parts of hydroquinone and 60-120 parts of deionized water and continue ultrasonic treatment for 15-25 minutes to obtain a mixed monomer solution;

[0030] D. Add 60-90 parts of deionized water into the reactor, ad...

Embodiment 2

[0042] A preparation process of a high-performance polycarboxylate water reducer applied to concrete, comprising the following steps:

[0043] A. Dissolving the surfactant in ethanol, adding a hydrophilic fullerene derivative, performing mechanical stirring, ball milling, ultrasonic reaction treatment in sequence, and spray drying to obtain a surface-modified fullerene;

[0044]B. Take 100 parts of allyl polyoxyethylene ether in parts by mass, mix 40-60 parts of surface-modified fullerene and 3-8 parts of concentrated sulfuric acid, stir and heat up to 60-75°C, keep warm and ultrasonically treat for 30 -45min, obtain fullerene modified allyl polyoxyethylene ether;

[0045] C, then add 5-15 parts of methacrylic acid, 1-3 parts of sodium methacryl sulfonate, 0.1-0.4 parts of hydroquinone and 60-120 parts of deionized water and continue ultrasonic treatment for 15-25 minutes to obtain a mixed monomer solution;

[0046] D. Add 60-90 parts of deionized water into the reactor, add...

Embodiment 3

[0058] A preparation process of a high-performance polycarboxylate water reducer applied to concrete, comprising the following steps:

[0059] A. Dissolving the surfactant in ethanol, adding a hydrophilic fullerene derivative, performing mechanical stirring, ball milling, ultrasonic reaction treatment in sequence, and spray drying to obtain a surface-modified fullerene;

[0060] B. Take 100 parts of allyl polyoxyethylene ether in parts by mass, mix 40-60 parts of surface-modified fullerene and 3-8 parts of concentrated sulfuric acid, stir and heat up to 60-75°C, keep warm and ultrasonically treat for 30 -45min, obtain fullerene modified allyl polyoxyethylene ether;

[0061] C, then add 5-15 parts of methacrylic acid, 1-3 parts of sodium methacryl sulfonate, 0.1-0.4 parts of hydroquinone and 60-120 parts of deionized water and continue ultrasonic treatment for 15-25 minutes to obtain a mixed monomer solution;

[0062] D. Add 60-90 parts of deionized water into the reactor, ad...

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 process of a high-performance polycarboxylic acid water reducer applied to concrete, which comprises the following steps: modifying allyl polyoxyethylene ether by using fullerene subjected to surface modification under an acidic condition to obtain fullerene modified allyl polyoxyethylene ether; then reacting the compound with other monomers including methacrylic acid, sodium methallyl sulfonate and hydroquinone, and finally adding inorganic salt to obtain the polycarboxylate-type water reducer. According to the method, surface-modified fullerene is added on the basis of a traditional water reducing agent, and due to the special spherical and long-chain structure of fullerene derivatives, the concrete strength can be effectively improved within a short time; meanwhile, by adding the inorganic salt sodium silicate, hydration of minerals such as C2S and C3S can be accelerated, so that the early strength of the concrete is further improved.

Description

technical field [0001] The invention relates to the technical field of concrete water reducers, in particular to a preparation process of a high-performance polycarboxylate water reducer applied to concrete. Background technique [0002] Concrete is still the most important building material in the world today. The production of concrete requires a large amount of cement, sand, etc. The preparation process of these raw materials consumes a lot of resources and energy, and also produces huge environmental pollution. Today, when reducing resource consumption, reducing energy consumption and advocating a low-carbon economy, improving the strength and service life of concrete and reducing the amount of concrete used in construction are one of the main measures to achieve a low-carbon economy and reduce pollution. The use of high-efficiency and enhanced polycarboxylate superplasticizers is the main method to improve the mechanical properties of concrete and reduce the amount of c...

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): C08F283/06C08F292/00C08F220/06C08F228/02C04B24/16C04B103/30
CPCC08F283/065C08F292/00C04B24/165C04B2103/302C08F220/06C08F228/02Y02W30/91
Inventor 王心鹏韩文启刘海法铁才云
Owner QINGHAI XINGLI HIGHWAY & BRIDGE ENG CO