Fair-faced concrete formwork construction technology

A technology of fair-faced concrete and construction technology, which is applied to the preparation of formwork/formwork components and building components on site, and construction. It can solve the problems of unsatisfactory sharp edges and corners, eliminate honeycomb pockmarks and air bubbles, and improve construction quality. , smooth surface effect

Active Publication Date: 2014-11-26
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] 2. For the regular lines of large cross-section and variable cross-section structures, the effect of sharp edges and corners is not ideal;

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The invention relates to a construction process of fair-faced concrete formwork. The fair-faced concrete is the concrete without modification on the structure surface. During the construction process, the eyelets of the tie bolts are firstly treated, then the joints are treated, and finally the open joints are treated.

[0028] Wherein the preferred embodiment is that the holes of the tension bolts are positioned on the fair-faced concrete surface by elastic wires, so that the centers of the tension bolt holes are aligned vertically and horizontally, with uniform spacing, and overall or partial symmetry.

[0029] Further preferred embodiments include:

[0030] 1. The position of the center of the bolt hole is specially designed, and it is set symmetrically with the corners of the building, the opening, and the seam as the baseline;

[0031] 2. The formwork opening at the hole of the pull bolt is drilled from the front side in contact with the concrete and the backside i...

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PUM

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Abstract

The invention relates to a fair-faced concrete formwork construction technology. The structure surface of fair-faced concrete is not decorated. In the construction process, split bolt holes are handled, panel joints are handled, and finally visible joints are handled. The fair-faced concrete produced with the fair-faced concrete formwork construction technology can be formed at a time and is not decorated externally at all, the natural color of concrete is directly adopted as the decorating color, and it is required that beam columns and plates are flat and smooth in surface, regular and clear in line and consistent in appearance and color, the shape and the size in the axial direction are accurate, cross sections are large, variable-cross-section structures are adopted, lines are regular, corners and edges are clear, beam column joints are smooth, obvious connection marks do not exist, the concrete is solid inside and smooth outside, voids, pits and bubbles are eliminated, embedded parts and embedded bolt sleeves are smooth in surface and accurate in size, split bolts are arranged in order in position, formwork edge joints are regular, and the surface of the concrete should not be damaged or polluted.

Description

technical field [0001] The invention relates to construction engineering, and is suitable for the construction process of fair-faced concrete formwork in the construction process of building frame shear wall structures. Background technique [0002] Building formwork is an important tool for concrete structure engineering construction. In cast-in-place concrete structure engineering, formwork (including bracket) engineering generally accounts for 20-30% of the cost of concrete structure engineering, 30-40% of engineering labor, and 30% of the construction period. About 50%. Formwork technology directly affects the quality, cost and benefit of engineering construction. Therefore, it is an important content to promote the progress of construction technology. [0003] In China's construction formwork market, wood plywood formwork occupies more than 50% of the market share, and combined steel formwork, bamboo plywood formwork, all-steel large formwork, and other formwork each o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G9/04
Inventor 赵博佳刘东学孙庆李潇
Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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