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

Concrete for building reinforcement and preparation method and application thereof

A technology for concrete and construction, applied in the field of concrete, can solve the problems of unsatisfactory reinforcement effect, poor adhesion, cracking of reinforcement materials, etc., and achieve the effects of alleviating easy cracking, improving toughness and reducing shrinkage rate.

Active Publication Date: 2022-07-15
河北孚领商品混凝土有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, ordinary concrete is generally used as a reinforcement material for brick-concrete structures, but the problem is that the water absorption rate of brick-concrete structures is very high, especially the clay-fired red bricks used in the early days, which can quickly absorb moisture in concrete. It not only leads to poor bonding between the reinforcement material such as ordinary concrete and the brick-concrete structure, but also causes cracking of the reinforcement material, and the reinforcement effect is not ideal

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
  • Concrete for building reinforcement and preparation method and application thereof
  • Concrete for building reinforcement and preparation method and application thereof
  • Concrete for building reinforcement and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1. The preparation of a modified polyvinyl alcohol fiber, comprising:

[0036] (1) adding calcium carbonate powder with particle size below 5um and dispersant (sodium polyacrylate) in dimethyl sulfoxide to carry out ultrasonic dispersion for 30min to obtain calcium carbonate suspension, wherein, the calcium carbonate powder addition amount It accounts for 30% of the total mass of calcium carbonate powder and polyvinyl alcohol. Then polyvinyl alcohol is added to continue ultrasonic dispersion to obtain a suspension of polyvinyl alcohol and calcium carbonate, which is for later use.

[0037] (2) Mix polyvinyl alcohol and dimethyl sulfoxide to prepare a solution with a mass concentration of 14%, then first heat to 40°C for 3 hours, then continue to heat to 80°C for 4.5 hours, and keep stirring during the heat preservation period. Uniform spinning dope.

[0038] (3) Place the spinning dope in a vacuum drying oven, and degas the dope at a constant temperature of 70°C until...

Embodiment 2

[0048] 1. The preparation of a modified polyvinyl alcohol fiber, comprising:

[0049] (1) adding calcium carbonate powder with particle size below 5um and dispersant (sodium polyacrylate) in dimethyl sulfoxide to carry out ultrasonic dispersion for 30min to obtain calcium carbonate suspension, wherein, the calcium carbonate powder addition amount It accounts for 25% of the total mass of calcium carbonate powder and polyvinyl alcohol. Then polyvinyl alcohol is added to continue ultrasonic dispersion to obtain a suspension of polyvinyl alcohol and calcium carbonate, which is for later use.

[0050] (2) Mix polyvinyl alcohol and dimethyl sulfoxide to prepare a solution with a mass concentration of 15%, then first heat to 45°C for 3 hours, then continue to heat to 85°C for 4 hours, and keep stirring during the heat preservation period. Uniform spinning dope.

[0051] (3) Place the spinning dope in a vacuum drying oven, and degas the dope at a constant temperature of 70°C until t...

Embodiment 3

[0061] 1. The preparation of a modified polyvinyl alcohol fiber, comprising:

[0062] (1) adding calcium carbonate powder with particle size below 5um and dispersant (sodium polyacrylate) in dimethyl sulfoxide to carry out ultrasonic dispersion for 30min to obtain calcium carbonate suspension, wherein, the calcium carbonate powder addition amount It accounts for 32% of the total mass of calcium carbonate powder and polyvinyl alcohol. Then polyvinyl alcohol is added to continue ultrasonic dispersion to obtain a suspension of polyvinyl alcohol and calcium carbonate, which is for later use.

[0063] (2) Mix polyvinyl alcohol and dimethyl sulfoxide to prepare a solution with a mass concentration of 10%, then first heat to 45°C for 3 hours, then continue to heat to 75°C for 5 hours, keep stirring during the heat preservation period, and after completion, obtain Uniform spinning dope.

[0064] (3) Place the spinning dope in a vacuum drying oven, and degas the dope at a constant te...

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

PropertyMeasurementUnit
lengthaaaaaaaaaa
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a concrete for building reinforcement and a preparation method and application thereof, which, in parts by weight, comprise the following components: cementitious material: 35-47 parts; volcanic stone fragments: 52-65 parts; modified polyvinyl alcohol Fiber: 6-11 parts; sand: 45-55 parts; polyvinyl alcohol powder: 2.0-3.5 parts; water reducing agent 0.5-1.4 parts; retarder 0.3-1.2 parts; defoamer 0.2-1.0 parts. Wherein, the modified polyvinyl alcohol fiber is composed of a body fiber and a coating layer wrapped on the surface of the body fiber, wherein the material of the body fiber is polyvinyl alcohol, and the coating layer is composed of polyvinyl alcohol and carbonic acid. Calcium composition, and the outer surface of the coating has pits. The concrete of the present invention not only has good anti-cracking ability, but also has good bonding strength, and can have a good reinforcement effect on the brick-concrete structure.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete for building reinforcement and a preparation method and application thereof. Background technique [0002] The disclosure of information in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] Brick-concrete structure means that the walls of the vertical load-bearing structure in the building are built with bricks or blocks, and the structural columns and the horizontal load-bearing beams, floor slabs, roof slabs, etc. are made of reinforced concrete structures. That is to say, the brick-concrete structure is a load-bearing structure with a small part of reinforced concrete and most of the brick walls. With the passage of tim...

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 Patents(China)
IPC IPC(8): C04B28/04C04B111/72
CPCC04B28/04C04B2111/72C04B2201/10C04B14/14C04B16/0641C04B14/06C04B24/2623C04B2103/302C04B24/06C04B24/003C04B24/10
Inventor 不公告发明人
Owner 河北孚领商品混凝土有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com