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

Composite antifreezing agent and antifreezing pumping agent

A technology of antifreeze and pumping agent, applied in the field of concrete plus pumping agent, can solve the problem of not being fully suitable for preparing antifreezing pumping agent, etc., achieve good antifreeze effect, improve later strength, and prevent concrete freeze damage.

Active Publication Date: 2015-08-19
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY +1
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned defects and problems of the prior art, the purpose of the embodiment of the present invention is to provide a composite antifreeze agent and an antifreeze pumping agent, which solves the problem of water reducing agents based on naphthalene, sulfamate and aliphatic water reducers. The preparation technology of liquid antifreeze pumping agent is not completely suitable for the technical problem of preparing liquid antifreeze pumping agent based on polycarboxylate superplasticizer

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
  • Composite antifreezing agent and antifreezing pumping agent
  • Composite antifreezing agent and antifreezing pumping agent
  • Composite antifreezing agent and antifreezing pumping agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The compound antifreeze agent of the embodiment 1 of the present invention is the mixture that salt component and organic solvent component are mixed; Wherein, described salt component is the mixture of calcium nitrate, calcium formate and sodium thiosulfate, and described The organic solvent component is an alcohol with 1 to 3 carbon atoms. The organic solvent component adopts one kind of alcohol, or the mixture of two kinds of alcohols. A mixture of two alcohols is preferred, eg a mixture of methanol and ethylene glycol.

[0041] The mixture of calcium nitrate, calcium formate and sodium thiosulfate, and organic solvent can be applied to the liquid antifreeze pumping agent based on polycarboxylate superplasticizer.

[0042] As a preferred embodiment, the compound antifreeze is, in parts by weight, a mixture of 3 to 6.5 parts of salt components and 1 to 3 parts of organic solvent components; wherein, in the salt components, calcium nitrate 1.5 to 3 parts, 0.5 to 1 pa...

Embodiment 2

[0049] The antifreeze pumping agent of embodiment 2 of the present invention is to comprise the mixture of polycarboxylate water reducer, air-entraining agent, retarder and water, and the compound antifreeze described in the above-mentioned embodiment 1; Wherein, with antifreeze pumping Based on the total mass of the antifreeze agent, the mass percentage of the composite antifreeze agent is 6% to 10%.

[0050] The antifreeze effect of the antifreeze pumping agent of the present invention can be achieved by adopting the proportion of the existing pumping agent based on polycarboxylate superplasticizer for other components, and the adaptability to cement is good.

[0051] Specifically, embodiment 2 of the present invention provides the prescription of preferred antifreeze pumping agent, as follows:

[0052] Antifreeze pumping agent, by mass percentage, includes 15% to 20% polycarboxylate superplasticizer, 0.08% to 0.15% air-entraining agent, 0.5% to 1.0% retarder, 6% to 10% The...

Embodiment 3

[0055] This embodiment 3 is based on the antifreeze pumping agent in embodiment 2, and optimizes the selection of the polycarboxylate water reducer therein. The polycarboxylate water reducer is a composite polycarboxylate water reducer that is a mixture of high water reducing type polycarboxylate water reducer, high slump retention type polycarboxylate water reducer and early strength type polycarboxylate water reducer; control The solid content of the composite polycarboxylate water reducer is 35%-45%. Specifically, the mixing mass ratio of the high water-reducing polycarboxylate water-reducer, the high-slump-holding polycarboxylate water-reducer and the early-strength polycarboxylate water-reducer is 7:3:1 in sequence. Three kinds of water-reducing agents with different properties were mixed and stirred in proportion to prepare a composite polycarboxylate water-reducer solution with a solid content of 40% and a high water-reducing rate, good slump retention effect, and remar...

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 provides a composite antifreezing agent and an antifreezing pumping agent. The composite antifreezing agent is a mixture prepared from a salt component and an organic solvent component, wherein the salt component is a mixture of calcium nitrate, calcium formate and sodium thiosulfate; the organic solvent component is alcohol. The invention further discloses the antifreezing pumping agent with the antifreezing agent. The composite antifreezing agent is a liquid antifreezing agent compounded from organic and inorganic early strength components and antifreezing components, and is good in antifreezing effect, and moreover the later strength of concrete constructed in winter can be effectively improved. The antifreezing pumping agent with the antifreezing agent is good in antifreezing effect, good in adaptability with cement, low in slump time loss of concrete and good in antifreezing effect, and the anti-pressure strength of the composite antifreezing agent is far greater than the standard requirements under the condition of the provided temperature of minus 10 DEG C. The composite antifreezing agent is applicable to concrete pumping construction in northern areas in winter, can be applicable to commercial premixed pumping concrete, and can be also applied to on-site mixed pumping concrete.

Description

technical field [0001] The invention relates to the technical field of pumping agent added to concrete, in particular to a composite antifreeze agent and an antifreeze pumping agent. Background technique [0002] Antifreeze and pumping agents are necessary admixtures for concrete pumping construction in winter in the north. Most commercial concrete mixing plants combine antifreeze components and pumping components together and use them in the form of liquid antifreeze pumping agents. Since polycarboxylate superplasticizers have only been popularized and applied in commercial concrete mixing stations in recent years, most of the water-reducing components used in the preparation technology of liquid antifreeze pumping agents are naphthalene-based high-efficiency water-reducers, aliphatic-based High-efficiency water reducer, or the combined use of naphthalene-based and sulfamate-based high-efficiency water-reducers, the combined use of aliphatic and sulfamate-based high-efficie...

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): C04B24/04C04B24/02C04B22/14C04B22/08C04B24/24
Inventor 何廷树徐一伦王玥钱强
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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