Compound building template special for concreting and preparation method thereof

A technology of building templates and thin plates, which is applied to the preparation of building components on site, construction, building construction, etc. It can solve the problems of chemical corrosion, cumbersome operation, and complicated slurry preparation, and achieves low cost and easy industrial production. , the effect of excellent comprehensive performance

Inactive Publication Date: 2009-12-02
邱天祥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the billet assembly process is cumbersome to install three layers of slurry and two layers of glass fiber cloth on the bamboo woven board, and the preparation of the slurry is complicated and chemically corrosive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Wooden plywood covered with zinc alloy sheet.

[0028] 14mm thick, density 0.65g / cm 3 The wooden plywood is used as the substrate, and the thickness of the substrate is sanded to 13mm, and the cold-pressed adhesive with a solid content of 50±2% is used, and the amount of double-sided glue is 330g / m 2 , Zinc alloy sheet with 1.0mm thickness on both sides, viscosity 12000mpa.s / 25℃. After the billet is formed, the composite building formwork is formed by cold-pressing the adhesive once. The pressure of the cold press is 17MPa. After 40 minutes of cold pressing, it can be machined within 24 hours of edge cleaning, airing, sawing, and stacking. 72 Hours of cold pressing the adhesive to its maximum. The thickness of the template is 14.8mm, which meets the tolerance requirement of ±0.5mm. The thickness expansion rate of water absorption is reduced from 22% of the original lignin plywood to 10.75%. The bending strength is as high as 51.7MPa, and the elastic modu...

Embodiment 2

[0030] Example 2: Bamboo oriented strand board covered with plastic sheet.

[0031] 15mm thick, density 0.80g / cm 3 Bamboo oriented strand board is used as the substrate, and the thickness of the substrate is sanded to 14mm, and a cold-pressed adhesive with a solid content of 50±2% is used, and the amount of double-sided glue is 350g / m 2 , 1.5mm thick plastic board on both sides, viscosity 15000mpa.s / 25℃. After the billet is formed, the composite building formwork is formed by cold-pressing the adhesive once. The pressure of the cold press is 15MPa. After 40 minutes of cold pressing, it can be machined within 24 hours of edge cleaning, air-drying, sawing, and stacking. 72 Hour V cold-pressed adhesive reaches its maximum value. The template thickness is 17.8mm, which meets the tolerance requirement of ±0.5mm. The water absorption thickness expansion rate is reduced from 22% of the original bamboo OSB to 8.76%. The bending strength is as high as 85.16PMa, and the elastic modulu...

Embodiment example 3

[0032] Implementation Case 3: Wooden plywood covered with plastic sheet.

[0033] 12mm thick, density 0.65g / cm 3 Oriented strand board is used as the substrate, and the thickness of the substrate is sanded to 11mm, and the cold-pressed adhesive with a solid content of 50±2% is used, and the amount of double-sided glue is 350g / m 2 , double-sided plastic sheet with a thickness of 1.5mm, viscosity 13000mpa.s / 25℃. After the billet is formed, the composite building formwork is formed by cold-pressing the adhesive once. The pressure of the cold press is 16MPa. After 40 minutes of cold pressing, it can be machined within 24 hours of edge cleaning, airing, sawing, and stacking. 72 Hours of cold pressing the adhesive to its maximum. The template thickness is 14.90mm, which meets the tolerance requirement of ±0.5mm. The water absorption thickness expansion rate is reduced from 22% of the original wood plywood to 11.48%. The bending strength is as high as 41.35MPa, and the elastic modu...

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Abstract

The invention discloses a compound building template special for concreting, and relates to a building template and a manufacturing method thereof. The compound building template is prepared by bonding an aluminum alloy or zinc alloy sheet and various engineering plastics such as hard polyvinyl chloride, acrylonitrile, butadiene, styrene and the like which are taken as surface materials, and woody or bamboo plywoods or oriented strand boards which are taken as base materials of a sandwich layer by a bonding adhesive through cold pressing molding. Because of respective characteristics of the materials, raw material sources of a surface plate and a baseplate are widened, and the special requirement that the woody or bamboo plywoods or the oriented strand boards are compounded and then used in the building template can be met; and the prepared building template for the concreting has stable quality, and various indexes such as strength, elastic modulus, neatness and smoothness, acid and alkali resistance and the like meet the technical requirements of national bamboo or woody building templates.

Description

technical field [0001] The invention relates to a composite template for making buildings, and also relates to a manufacturing method of the composite building template. Background technique [0002] Wood and bamboo are used as base boards to make building templates with film covering, which can become the main products in the building template market due to their characteristics of wear resistance, scratch resistance, pollution resistance, and tensile resistance, such as "film-coated bamboo wood-based panel building templates" and manufacturing method” (Chinese Invention Patent Announcement No. 92101832.3), the template is made of bamboo woven board, glass fiber cloth, polyester film, slurry, etc. Put three layers of slurry and two layers of glass fiber cloth on it, place the bamboo woven board flat on the slurry for compaction; then install three layers of slurry and two layers of glass fiber cloth on the bamboo woven board, And cover the polyester film, press the mold, a...

Claims

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Application Information

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IPC IPC(8): E04G9/02B32B15/10B32B21/10B32B21/08B32B37/12B32B37/10
Inventor 邱天祥
Owner 邱天祥
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