Construction process for coating faced concrete outside ultrahigh steel tube column after floor is closed

A technology of fair-faced concrete and construction technology, which is applied in the fields of formwork/formwork/work frame, on-site preparation of building components, construction, etc., which can solve difficulties in ensuring concrete quality, inability to use large-scale machinery, concrete flow and internal vibration difficulties And other issues

Active Publication Date: 2013-04-03
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] After the floor is closed, large-scale machinery cannot be used for the installation of super-high steel pipe column outsourcing concrete formwork, and it is difficult to install heavy formwork (such as shaped steel formwork). Thin, the concrete pouring constructio...

Method used

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  • Construction process for coating faced concrete outside ultrahigh steel tube column after floor is closed
  • Construction process for coating faced concrete outside ultrahigh steel tube column after floor is closed

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Embodiment Construction

[0013] Step 1. Template processing and production

[0014] 1 template design

[0015] Fair-faced concrete has higher requirements on formwork strength, stiffness and panel finish. Select 18mm thick shaped cylindrical wood plywood with 0.8mm thick endurance board system inside, which can ensure the surface quality and appearance of fair-faced concrete and control project costs.

[0016] 2 Template processing and production

[0017] 1) Fully clean the inner surface of the formwork, clean the surface dust, oil, etc., and ensure that the endurance board and the inner surface of the formwork are firmly pasted.

[0018] 2) Set up an operation platform, cut the endurance board on the platform according to the perimeter and height of the template, and use a wallpaper knife for cutting, so that the cutting size is correct, without flying thorns and burrs.

[0019] 3) 801 glue is used for pasting the endurance board. The glue should be applied evenly to avoid accumulation and flow....

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Abstract

The invention discloses a construction process for coating faced concrete outside an ultrahigh steel tube column after a floor is closed. The procedures of the construction process comprise template processing and manufacturing, steel bar binding, template installing, concrete pouring, template dismantling and concrete curing. A template uses stereotyped cylindrical wood plywood, and the inner side of the template adopts a 801 glue to stick an endurance plate with the thickness of 0.8 mm. The steel bar binding adopts non-embroidered binding silk, the head of the binding silk faces to the inner side of a steel bar, and the binding silk on the outer side is subjected to round hook pressing processing. Template reinforcing adopts a stereotyped flat steel bar hoop, the first segment of concrete is poured after the first segment of template is installed, and the self-compacting faced concrete is adopted. The second segment of template is installed before the initial setting of the first segment of concrete, then the second segment of concrete is poured, and the pouring of column concrete is sequentially completed. The template dismantling is as follows: the flat steel bar hoop of the reinforced template is dismantled firstly, the template is lightly knocked, so that the template is naturally separated from the concrete, and the segments of column templates are dismantled from top to bottom. After the template is dismantled, a plastic film and a blanket are adopted to package and cover the concrete for moistening maintenance 14d.

Description

[0001] technical field [0002] The patent of the present invention relates to the technical field of building construction, in particular to a construction technique of super-high steel pipe column outsourcing fair-faced concrete after the floor slab is closed. technical background [0003] After the floor is closed, large machinery cannot be used for the installation of super-high steel pipe column outsourcing concrete formwork, and it is difficult to install heavy formwork (such as shaped steel formwork). Thin, the concrete pouring construction is affected by steel pipes, studs, steel structure column head ring plates, steel bars, embedded pipelines, etc., the flow of concrete and internal vibration are difficult, and it is difficult to guarantee the quality of concrete poured to the top when the column is super high. Contents of the invention [0004] The technical problem to be solved by the present invention is that after the floor slab is closed, the ultra-high stee...

Claims

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Application Information

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IPC IPC(8): E04G21/00E04G13/02E04G21/02
Inventor 张中善周申彬张鹏田鹏邢亚飞侯振国
Owner CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
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