High-slump-loss-resistant synergist and preparation method and application thereof

A technology of synergist and retaining agent, which is applied in the field of high slump-preserving synergist and its preparation, can solve the problems of fast slump loss of concrete, solve the problem of fast slump loss, reduce the loss over time, and save the cost of concrete Effect

Pending Publication Date: 2019-06-14
兰州同邦建材有限公司
View PDF4 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a high slump retention synergist and its preparation ...

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
  • High-slump-loss-resistant synergist and preparation method and application thereof
  • High-slump-loss-resistant synergist and preparation method and application thereof
  • High-slump-loss-resistant synergist and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A high slump retention synergist, consisting of the following components by weight:

[0036] 40 parts of slump retaining agent, 6 parts of β-cyclodextrin, 8.5 parts of polyhydroxy retarder, 12 parts of sodium thiocyanate, 9 parts of sodium acetate, 10 parts of alcohol amine,

[0037] Described slump retaining agent is made up of the following components by weight:

[0038] 180 parts of methallyl alcohol polyoxyethylene ether, 120 parts of isoamyl alcohol polyoxyethylene ether, 20 parts of unsaturated acid, 30 parts of hydroxypropyl acrylate, 1.1 part of thioglycolic acid, 0.5 part of vitamin C,

[0039] Its preparation method comprises the following steps:

[0040] S1, material preparation: according to the above formula, weigh each component for subsequent use;

[0041] S2. Prepare materials A and B: dissolve thioglycolic acid and vitamin C in water to obtain material A, dissolve unsaturated acid and hydroxypropyl acrylate in water to obtain material B, and set aside...

Embodiment 2

[0046] A high slump retention synergist, consisting of the following components by weight:

[0047] 60 parts of slump retaining agent, 30 parts of dispersible latex powder, 25 parts of polyhydric retarder, 50 parts of sodium thiocyanate, 38 parts of sodium acetate, 100 parts of alcohol amine,

[0048] Described slump retaining agent is made up of the following components by weight:

[0049] 300 parts of methallyl alcohol polyoxyethylene ether, 150 parts of isoamyl alcohol polyoxyethylene ether, 45 parts of unsaturated acid, 80 parts of ethyl methacrylate, 3.8 parts of mercaptoethanol, 1.5 parts of vitamin C,

[0050] Its preparation method comprises the following steps:

[0051] S1, material preparation: according to the above formula, weigh each component for subsequent use;

[0052] S2. Prepare materials A and B: dissolve mercaptoethanol and vitamin C in water to obtain material A, dissolve unsaturated acid and ethyl methacrylate in water to obtain material B, and set asid...

Embodiment 3

[0057] A high slump retention synergist, consisting of the following components by weight:

[0058] 43 parts of slump retaining agent, 15 parts of cellulose, 10 parts of polyhydroxy set retarder, 15 parts of sodium glucose, 10 parts of sodium acetate, 50 parts of alcohol amine,

[0059] Described slump retaining agent is made up of the following components by weight:

[0060] 150 parts of allyl polyoxyethylene ether, 200 parts of isobutenyl polyvinyl ether, 25 parts of unsaturated acid, 20 parts of hydroxypropyl acrylate, 20 parts of ethyl methacrylate, 1.5 parts of dodecyl mercaptan, vitamin C 0.7 parts,

[0061] Its preparation method comprises the following steps:

[0062] S1, material preparation: according to the above formula, weigh each component for subsequent use;

[0063] S2. Prepare materials A and B: dissolve lauryl mercaptan and vitamin C in water to obtain material A, dissolve unsaturated acid, butyl acrylate, and ethyl methacrylate in water to obtain material...

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 belongs to the technical field of concrete, and provides a high-slump-loss-resistant synergist, which is prepared from 40 to 60 parts of slump maintainers, 6 to 30 parts of thickening agents, 8.5 to 25 parts of polyhydroxyl retarders, 12 to 50 parts of excitants, 9 to 38 parts of sodium acetate or sodium silicate and 10 to 100 parts of hydramine or simethicone, wherein the slump maintainers are prepared from 300 to 450 parts of polyether, 20 to 45 parts of unsaturated acid, 30 to 80 parts of acrylic ester, 1.1 to 3.8 parts of chain transferring agents and 0.5 to 1.5 parts of reducing agents. A preparation method comprises the following steps of adding polyether into water; performing heating dissolution; then, dripping a material A and a material B; performing reaction for one hour to obtain the slump maintainers; adding water into thickening agents for dissolution; sequentially adding the polyhydroxyl retarders, the excitants, sodium acetate or sodium silicate; after thedissolution, adding hydramine or simethicone; adding the slump maintainers; performing uniform mixing to obtain the high-slump-loss-resistant synergist applied to concrete preparation. By using the technical scheme, the high-slump-loss-resistant synergist solves the problem of fast concrete slump loss in the prior art; meanwhile, the intensity is improved.

Description

technical field [0001] The invention belongs to the technical field of concrete, and relates to a high slump retention synergist and its preparation method and application. Background technique [0002] Concrete is the largest building material in construction projects. Due to the accelerated urbanization process in recent years, the demand for commercial concrete has increased, and the construction industry has a huge impact on air pollution and energy issues. Cement consumes a large amount of energy resources in the concrete industry, so save the amount of cement as much as possible. Due to the shortage of sand and gravel resources, various concrete companies mix inferior natural sand with artificial sand in order to control production costs, which often leads to two extreme dilemmas in the workability of concrete: segregation bleeding and rapid slump loss. [0003] Concrete is actually a solid-liquid-gas three-phase dispersion system with complex dynamic components. The ...

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): C04B24/38
Inventor 侯孟孟房小向房坛班增杰李计元杜康武张孟李杨
Owner 兰州同邦建材有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap