High-strength plywood for building shutter panel

A technology for building formwork and plywood, which is used in construction, building structure, formwork/formwork components, etc., can solve the problems of less turnover, large one-time investment, inconvenient disassembly and assembly, etc., and achieves more turnover and low amortization cost. , Easy to cut effect

Inactive Publication Date: 2009-08-05
NANJING UNIV OF TECH
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the current formwork operation process, commonly used formwork panels include steel plate panels and traditional bamboo (wood) plywood panels, etc., among which steel plate panels have disadvantages such as heavy weight, high cost, inconvenient disassembly and assembly, and large one-time investment; while traditional bamboo (wood) Although the one-time investment of plywood panel is small, its deformation is large, the number of turnovers is small, the quality of the processed concrete is not high, and it is difficult to meet the high standard requirements, so it is used in fair-faced concrete or concrete structures with high quality requirements. question

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-strength plywood for building shutter panel
  • High-strength plywood for building shutter panel
  • High-strength plywood for building shutter panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] Below in conjunction with accompanying drawing and specific embodiment the present invention will be further described:

[0018] In the accompanying drawings, 1 is the covering film, 2 is the panel, 3 is the core board, 4 is the outer layer board in the core board, and 5 is the inner layer board in the core board.

[0019] Such as figure 1 , 2 , and shown in 3, a high-strength plywood for building formwork panels, including a film 1, a panel 2 and a core board 3, the thickness of the plywood is 21mm. The covering film 1 is a phenolic resin laminated film. According to requirements such as wear resistance, the laminated film amount is 80-200g / m2 on the front side of the plywood, and about 80g / m2 on the reverse side; the thickness of the panel 2 is about 1-200g / m2. 3mm, the panel 2 is glued together by dipped glass fiber mat, and the adjacent layers are perpendicular to each other; the core board is a three-layer structural board, each layer is a laminated board, the ou...

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
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention provides a veneer which is used for fair-faced concrete building template and has the advantages of lightness, high strength, convenient disassembly and assembly, easy cutting, high cost performance, weather resistance, corrosion prevention, strong durability, easy demoulding, high turnover frequency and being suitable for industrial production. The veneer consists of a covering film, a panel and a core plate; the covering film is prepared from a resin pressed film; the panel is prepared by gluing a gum dipping fiber reinforced composite material; and the core plate is a three-layer structural plate. The invention is mainly used for panels in building template systems, particularly for panels of fair-faced concrete templates.

Description

technical field [0001] The invention relates to a high-strength plywood for building formwork, which is mainly (but not exclusively) used as a panel in a building formwork system, especially as a clear-faced concrete formwork panel. Background technique [0002] Building formwork is an important tool in the construction of concrete structures. Statistics show that in the construction process of general concrete structures, formwork works account for 20% to 30% of the cost of concrete structure projects, occupy 30% to 40% of the workload, and account for about 50% of the construction period. In the current formwork operation process, commonly used formwork panels include steel plate panels and traditional bamboo (wood) plywood panels, etc. Among them, steel plate panels have disadvantages such as heavy weight, high cost, inconvenient disassembly and assembly, and large one-time investment; while traditional bamboo (wood) Although the one-time investment of plywood panel is s...

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): E04G9/02B32B27/06B32B21/08B32B21/10B32B5/12B32B7/12
Inventor 刘伟庆方海杨会峰岳孔
Owner NANJING UNIV OF TECH
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