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Production process of laminated boards under low-temperature condition

A technology of production technology and low temperature conditions, applied in the field of laminated slab production technology under low temperature conditions, can solve problems such as temperature cracks on the surface of laminated slabs, affect the quality of laminated slab molding, and large temperature differences between inside and outside of concrete, so as to avoid temperature cracks and save repairs Work, alleviate the effect of temperature cracks

Inactive Publication Date: 2019-05-03
上海住信住宅工业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in a low temperature environment, when the concrete is poured, due to the large temperature difference between the inside and outside of the concrete, temperature cracks are likely to occur on the surface of the laminated slab. Affect the forming quality of the laminated board

Method used

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  • Production process of laminated boards under low-temperature condition
  • Production process of laminated boards under low-temperature condition

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] See attached figure 1 , a laminated board production process under low temperature conditions, which can overcome the problem that laminated boards are prone to temperature cracks in low temperature environments, and includes the following steps:

[0032] S1, formwork support. In normal production, the entire pouring operation of the laminated slab can be completed on the steel platform; before pouring, the formwork is supported on the steel platform, and the corresponding pouring mold is fixed on the steel platform, and the pouring mold is surrounded by a square frame structure as a whole , the pouring area for pouring the formed laminated slab is formed inside.

[0033] S2. Laying steel bar trusses and pouring concrete in the mould. After the form support is completed, several steel bar trusses can be laid in the mold first, and the steel ...

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Abstract

The invention discloses a production process of laminated boards under a low-temperature condition, and relates to the technical field of prefabricated laminated boards. The production process includes the steps of erecting molds, laying reinforced concrete trusses and pouring concrete in the molds, maintaining through temperature control, demoulding and the like. The cementitious materials of theconcrete are slag cement; the concrete is mixed with 15%-20% high-quality fly ash; and layered pouring is carried out in pouring concrete, and the longest interval between layers is less than the initial setting time of the concrete. According to the production process of the laminated boards under the low-temperature condition, the production efficiency of the laminated boards is improved, the structural strength of the laminated boards is ensured, the temperature cracks are effectively avoided, and the production cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of prefabricated laminated panels, in particular it provides a production process for laminated panels under low temperature conditions. Background technique [0002] The composite slab is a kind of prefabricated concrete slab as the bottom slab, and the concrete laminate layer is poured on it. After the pouring is completed, the two are used as an assembled integral floor slab. It is mainly used in prefabricated buildings and bridge deck composite slab structures. At present, the commonly used processing method for laminated slabs is: place the steel bar truss in the special processing mold, then pour the high fluidity filler, and then vibrate and compact the high fluidity filler in the special processing mold, so that the high fluidity filler and the steel bar truss A laminated slab with steel trusses is formed in the mould. However, in a low temperature environment, when the concrete is poured, due to th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B23/02
Inventor 刘嘉汪廷秀孙飞唐乐
Owner 上海住信住宅工业有限公司
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