Reinforced plastic construction shuttering
A technology of building templates and reinforced plastics, which is applied in the direction of construction, building structure, formwork/formwork components, etc. It can solve the problems of large difference in lateral bearing capacity, unfavorable storage and transportation of thick formwork, and large formwork thickness. Improve the strength and bearing capacity, light weight, easy demoulding effect
Inactive Publication Date: 2009-09-23
ZHENGTAI GRP
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Problems solved by technology
This technical solution can significantly improve the strength of the formwork, but the thickness of the formwork is large, and the thick formwork is not conducive to storage and transportation. More importantly, the technical solution is directional, and the vertical and horizontal bearing capacities are quite different, which is not conducive to engineering use.
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[0012] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.
[0013] The reinforced plastic building formwork shown in the accompanying drawing is a three-layer solid board with a main body layer as the main layer, and the upper and lower planes of the main body layer are respectively bonded to the surface layer. The main body is a component made of foamed polyurethane as the main raw material, wherein glass fibers with a directional continuous monofilament diameter of 6-21 microns are embedded in layers. In the present invention, the ratio of the number of continuously oriented glass fibers distributed in the length direction and the width direction is 7:3, the layer interval is 0.6-1.2 mm, and the thickness of the main layer is 12-25 mm. Due to the layered embedding of the directional and continuous glass fibers, the main layer contains a rib structure, which directly improves the strength and b...
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Abstract
The invention discloses a reinforced plastic construction shuttering which is a multilayer solid slab using a main body layer as a main part. The plane of the main body layer is bonded to a surface layer, and the main body layer is a member using polyurethane foam as a main raw material; a directional continuous glass fiber layer is embedded in the polyurethane foam, and a vein structure in the main body layer is formed by the directional continuous glass fiber; the strength and the carrying capacity of the plastic construction shuttering are significantly improved by the embedded directional continuous glass fiber, and the outer plane of the main body layer is bonded to the surface layer with two-component polyurethane adhesive; and the surface layer is a copolymer polypropylene sheet. The surface layer is coated with parlon-containing liquid so as to have hydrophobic property, the shuttering does not stick to concrete practically, the stripping operation is very easy, and the surface of the member is up to the quality requirements of fair-faced concrete. The strength of the reinforced plastic construction shuttering is 30 to 40 percent higher than the product in the prior art, and the reinforced plastic construction shuttering is thin, light and easy to install and transport and can be repeatedly used for 100 times.
Description
technical field [0001] The present invention relates to a building formwork, in particular, the present invention relates to a building formwork made of plastic material. Background technique [0002] Templates are widely used in modern construction projects to make component formwork. Since the formwork is in direct contact with the alkaline concrete mortar and supports it, the formwork is required to have sufficient strength, corrosion resistance and waterproofness. Most of the formwork used in the project are steel formwork and wooden formwork, and there are also a small amount of bamboo formwork. The formwork of these materials can basically meet the requirements of the project, but there are different shortcomings. For example, steel formwork has a heavy weight, poor corrosion resistance, and is difficult to demould; wooden formwork has low strength, is easily deformed after being affected by moisture, and has few repeated uses, which is not economical and wastes wood ...
Claims
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IPC IPC(8): E04G9/05
Inventor 孟向惠吴春林宋增贤秦春华鞠林群
Owner ZHENGTAI GRP