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

Bridge self-repairing paving method based on cement-based composite material

A composite material and composite material component technology, applied in the field of bridge self-healing pavement, can solve the problems of high repair construction complexity, low maintenance effect stability, low repair efficiency, etc., so as to reduce maintenance time, high construction efficiency, and low cost The effect of chemical adhesion

Inactive Publication Date: 2019-12-24
维特国际新材料(武汉)有限公司
View PDF6 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in actual repair projects, especially large-area repairs, the stability of the maintenance effect of ECC material repair is low, the repair efficiency is low, the repair construction complexity is high, and the construction cost is high

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
  • Bridge self-repairing paving method based on cement-based composite material

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0085] 1. Preparation method

[0086] 1. Material preparation:

[0087] The main raw materials for preparing cement-based composite materials include cement, fly ash, rubber powder, quartz sand, polyvinyl alcohol fiber, superplasticizer and water. The cement used in this paper is the Conch brand P42.5R Portland cement produced by China Cement Factory; the fly ash is the first-grade fly ash of Nanjing Thermal Power Plant; the quartz sand is provided by Nanjing Ningliu Quartz Filter Company, and the particle size is 80 mesh-150 mesh; rubber powder particle size is 40 mesh-80 mesh; high-efficiency water reducer is carboxylic acid-based water reducer.

[0088] 2. Test piece preparation

[0089] The material ratio is cement: fly ash: rubber powder: quartz sand: polyvinyl alcohol fiber: superplasticizer: water = 1:2:1:0.36:0.02:0.03:0.25. During the slurry forming process, first weigh the fly ash, cement, quartz sand, and rubber powder, then pour them into the mortar mixer and st...

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
Granularityaaaaaaaaaa
Granularityaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a bridge self-repairing paving method based on a cement-based composite material. The method comprises the following steps: 1) preparing materials: respectively weighing cement, fly ash, rubber powder, quartz sand, polyvinyl alcohol fibers, a high efficiency water reducing agent and water; with the mass ratio of the fly ash to the cement being 2-2.5, and the particle size range of the rubber powder being 40-80 meshes; 2) preparing a test piece; 3) maintaining the test piece; 4) prefabricating cement-based composite material components; and 5) performing pavement: conveying a roller wound with the prefabricated cement-based composite material components to a bridge construction site, gradually releasing the prefabricated cement-based composite material components, and paving the components onto a bridge base layer or a bridge surface layer till pavement is completed. The method is high in construction efficiency, convenient to construct and low in construction cost.

Description

technical field [0001] The invention relates to a composite material construction method. More specifically, the present invention relates to methods of self-repairing bridge paving based on cement-based composite materials. Background technique [0002] Traditional road pavement materials (asphalt concrete or cement concrete) are easy to crack and produce cracks under the combined action of traffic load and surrounding environmental factors, and cracks are inevitable within the service life, so the pavement materials are always working with cracks within the service life state. The surrounding environment and stress state of the steel bridge deck pavement are more complex and harsh. Even if epoxy asphalt concrete is used as the steel bridge deck pavement, crack damage is still the main form of failure. Due to the appearance of cracks, harmful substances such as water and chloride ions penetrate into the connecting layer between the pavement and the steel plate through 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): C04B28/00E01C7/14
CPCC04B28/00E01C7/142E01C7/147
Inventor 胡汉桥魏小华张运华王欣
Owner 维特国际新材料(武汉)有限公司
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