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Composite material formwork

A composite material and formwork technology, applied in building materials, formwork/formwork components, building components, etc., can solve the problem that the steel formwork is difficult to meet the requirements of the concrete component formwork, the production cost of wood glued formwork and bamboo glued formwork increases, and it is impossible to It can meet the requirements of complex concrete component formwork and other problems, and achieve the effect of improving cooperative work performance, increasing turnover and service life, and enhancing anti-stripping ability.

Inactive Publication Date: 2007-09-26
NANJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Wood-glued formwork and bamboo-glued formwork are easy to deform and have a short service life, and the quality of concrete poured with wood-glued formwork and bamboo-glued formwork is limited
In addition, due to the increasing shortage of bamboo and wood resources, the production cost of wood-glued formwork and bamboo-glued formwork is increasing day by day
[0004] Steel formwork cannot meet the requirements of complex concrete members for formwork
Since steel formwork is usually produced according to certain standard specifications, in complex concrete structures, it is difficult for steel formwork to meet the requirements of concrete members for formwork
The steel formwork is heavy, and it is inevitable to use construction machinery for installation and disassembly during use, which increases the construction cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The composite template of the present invention comprises a core material 1 made of polyvinyl chloride foam, and grid-shaped grooves 2 are opened on the upper and lower surfaces of the core material 1, the grooves 2 are pointed, and at the intersection of the grooves 2 A circular perforation 4 is provided along the thickness direction of the core material 1 , two layers of biaxial carbon fiber cloth are laid on the upper and lower surfaces of the core material 1 , and vinyl resin columns are filled in the circular perforation 4 .

Embodiment 2

[0038] Composite material formwork of the present invention, it comprises the core material 1 of paulownia wood material, has the groove 2 of transverse rectangle parallel to each other and the groove 2 of longitudinal rectangle parallel to each other on the upper and lower surface of core material 1, but the groove of transverse rectangle The groove and the vertical rectangular groove intersect at an acute angle, and at the same time, an oval perforation 4 is provided along the thickness direction of the core material 1 at their intersection, and three layers of four-axis glass fiber cloth are laid on the upper surface of the core material 1 There are three layers of aramid fiber cloth layers on the lower surface of the core material 1, and epoxy resin columns are filled in the oval perforations 4.

[0039] As described in Embodiment 1, when perforating, the number and arrangement of the perforations 4 can be flexibly controlled at the intersection of the transverse groove and...

Embodiment 3

[0041] The composite material formwork of the present invention, it comprises the core material 1 of plywood material, on the upper and lower surface of core material 1 open the groove 2 of orthogonal opening triangle, at the same time at the intersection of opening triangle groove along the thickness direction of core material 1 A square perforation 4 is arranged on the top, and two layers of glass / aramid hybrid fiber cloth are laid on the upper and lower surfaces of the core material 1, and a phenolic resin column is filled in the square perforation 4.

[0042] The preparation method of the composite material formwork of above-mentioned embodiment 1, embodiment 2, embodiment 3 is as follows:

[0043] 1. On the upper and lower surfaces of the core material 1 of foam (including: polyurethane, polyvinyl chloride, carbon foam, etc.) or balsa wood (including: Balsa wood, paulownia wood, fir, oak, plywood, etc.) (The shape of the groove can include: pointed, rectangular, open triang...

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Abstract

The composite material made mold plate comprises the core material, featuring in the slots on the surface of the core material, fiber cloth layer on the top and bottom surface of the core material, setting through holes that stuffed with resin pegs along the thickness direction of the core material at the crossing section of the slots based on requirement. It features in its lightness, high strength, obvious improvement of concrete building speed, not only being able to saving constructing expenses, but also applicable to construction under special conditions.

Description

technical field [0001] The invention relates to a novel composite material template, which is a high-performance lightweight template and can be widely used in construction industry and other civil construction fields. Background technique [0002] Construction formwork is mainly used in various types of concrete construction. At present, the concrete forms commonly used in the construction industry include wood-glued formwork, bamboo-glued formwork, and steel formwork. These types of templates have the following characteristics: [0003] Wood-glued formwork and bamboo-glued formwork are easy to deform and have a short service life. The quality of concrete poured with wood-glued formwork and bamboo-glued formwork is limited. In addition, due to the increasing shortage of bamboo and wood resources, the production costs of wood-glued formwork and bamboo-glued formwork are increasing day by day. [0004] Steel formwork cannot meet the requirements of formwork for complex con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G9/02E04C2/32E04C2/24
Inventor 刘伟庆万里方海
Owner NANJING UNIV OF TECH
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