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

Construction method for reinforcing steel-bar net mortar thin layer

A construction method and technology of steel mesh, which can be used in building maintenance, construction, building construction, etc., can solve the problems of composite mortar unable to achieve reliable bonding, shear peeling damage, poor bonding performance, etc.

Inactive Publication Date: 2007-06-13
HUNAN UNIV
View PDF0 Cites 30 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 1980s, some foreign countries have done some experimental research on concrete beams strengthened by steel mesh cement mortar, such as Logan D. and Shah S.P. Moment Capacity and Cracking Behavior of Ferrocement in Flexure[J].Jumal of the American ConcreteInstitute, 1973, 70 (12): 799-804, but one of the biggest defects of steel mesh cement mortar reinforcement is that the bonding performance with the original components is not good, and even the composite mortar cannot achieve reliable bonding with the original components
Prone to shear peel failure at the interface so that the reinforcement layer does not work well with the original component

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
  • Construction method for reinforcing steel-bar net mortar thin layer
  • Construction method for reinforcing steel-bar net mortar thin layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the construction method of reinforcing and reinforcing the reinforced mesh mortar thin layer includes the following steps:

[0017] (1) Component surface treatment: use physical and chemical methods to treat the surface of the component, and use non-metallic sand such as river sand, silica sand, silicon carbide or alumina dry sandblasting to blow off, or stick a high-efficiency detergent brush with a hard bristle brush Remove surface grease; use hammer and chisel to borrow manpower or machinery to beat the new and old concrete bonding surface to form random unevenness, increase the surface area of ​​the adherend, and improve the bonding force; then blow off the dust with clean compressed air and particles;

[0018] (2) Implanting shear pins on the surface of the component: first drill holes 5 on the surface of the original component 1, the hole diameter 5 is generally about 2-3mm larger than the pins 4, 6, and 7, and the...

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 mat reinforcement mortar thin layer reinforcing construction method. It includes the following steps: component surface treatment; component surface inserting shear pin; laying mat reinforcement and fixing; coating mortar on the mat reinforcement and the component surface. The mat reinforcement and the shear pin are fixed to enhance the shear resistant between the mortar thin layer and the original component, accordingly increase structural member rigidity, tensile, compression resistant, bending resistant and shearing strength.

Description

Technical field: [0001] The invention relates to the field of building construction, in particular to a construction method for reinforcing and reinforcing a thin layer of reinforced mesh mortar. Background technique: [0002] A large number of old industrial and civil buildings and bridge structures urgently need to be reinforced and repaired. In addition, there are defects and potential safety hazards in newly-built structures due to design or construction errors, changes in use conditions and environments, natural disasters and accidental accidents, etc. These sick structures need to be reinforced and reconstructed. Existing direct reinforcement techniques and methods mainly include enlarging section reinforcement method, external prestress reinforcement method, paste steel plate (rib) reinforcement method, paste carbon fiber reinforcement method, etc. These methods have their own advantages and strengths, but there are also many shortcomings, such as: increasing the cro...

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): E04G23/02
Inventor 尚守平
Owner HUNAN UNIV
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