CN201221196Y

CN201221196Y - Composite plastic building shuttering

Info

Publication number: CN201221196Y
Application number: CNU2008201260612U
Authority: CN
Inventors: 靳培军
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-06-25
Filing date: 2008-06-25
Publication date: 2009-04-15
Anticipated expiration: 2018-06-25

Abstract

The utility model relates to a composite plastic building formwork, which comprises an upper fire-retardant polypropylene surface layer, a lower fire-retardant polypropylene surface layer and a middle foamed polypropylene core layer; wherein, the middle foamed polypropylene core layer is sandwiched between the upper fire-retardant polypropylene surface layer and the lower fire-retardant polypropylene surface layer; the thicknesses of the upper fire-retardant polypropylene surface layer and the lower fire-retardant polypropylene surface layer are respectively 1mm to 4mm; and the thickness of the middle foamed polypropylene core layer is 4mm to 18mm. The composite plastic building formwork does not need to be repaired and can be totally recovered after being condemned after construction, and therefore the building construction cost can be greatly reduced.

Description

A kind of composite plastic construction formwork

Technical field

The utility model relates to building material field, relates in particular to a kind of composite plastic construction formwork.

Background technology

The construction formwork of China uses steel form, wooden form and bamboo offset plate mostly.Steel form price height, maintenance cost height, from great, and can not cut assembly unit arbitrarily, also be easy to and the concrete adhesion, need a large amount of release agents that use; Wooden form, bamboo offset plate are lower than steel plate price, but close carcinogen because of using glutol to form sharp aroma, timber produces distortion because of natural conditions such as moist and dryings and rots, have also that piece is many, poor flatness, yieldingly make moist, easily decompose, easily produce defective such as the mould phenomenon that expands, and wooden form, the bamboo offset plate number of turnover is low, cost depletions is high, all can not recycle.

The utility model content

The purpose of this utility model provides a kind of composite plastic construction formwork, to overcome existing building steel form and wooden form above shortcomings.

The purpose of this utility model is to be achieved through the following technical solutions:

A kind of composite plastic construction formwork comprises top layer and middle expanded polypropylene sandwich layer under polypropylene flame redardant upper epidermis, the polypropylene flame redardant, described in the middle of the expanded polypropylene sandwich layer be clipped under described polypropylene flame redardant upper epidermis and the described polypropylene flame redardant between the top layer; The thickness on top layer respectively is the 1-4 millimeter under described polypropylene flame redardant upper epidermis, the polypropylene flame redardant, and the thickness of described middle expanded polypropylene sandwich layer is the 4-18 millimeter.

The beneficial effects of the utility model are: the prices of raw and semifnished materials are cheap, and cost of production is low; Product can use repeatedly, need not maintenance, and 100% can repeat to reclaim after construction was used and scrapped; Reduce construction engineering cost greatly.

Description of drawings

Below in conjunction with accompanying drawing the utility model is elaborated:

Fig. 1 is the cross sectional representation of the described composite plastic construction formwork of the embodiment of the invention.

Among the figure:

1, top layer, 3 middle expanded polypropylene sandwich layers under polypropylene flame redardant upper epidermis, 2, the polypropylene flame redardant.

The specific embodiment

The described composite plastic construction formwork of the utility model embodiment, comprise top layer 2 and middle expanded polypropylene sandwich layer 3 under polypropylene flame redardant upper epidermis 1, the polypropylene flame redardant, described in the middle of expanded polypropylene sandwich layer 3 be clipped under described polypropylene flame redardant upper epidermis 1 and the polypropylene flame redardant between the top layer 2; The thickness on top layer 2 respectively is the 1-4 millimeter under described polypropylene flame redardant upper epidermis 1, the polypropylene flame redardant, and the thickness of described middle expanded polypropylene sandwich layer 3 is the 4-18 millimeter.

Claims

1, a kind of composite plastic construction formwork, it is characterized in that: comprise top layer (2) and middle expanded polypropylene sandwich layer (3) under polypropylene flame redardant upper epidermis (1), the polypropylene flame redardant, described in the middle of expanded polypropylene sandwich layer (3) be clipped under described polypropylene flame redardant upper epidermis (1) and the polypropylene flame redardant between top layer (2); The thickness of top layer (2) respectively is the 1-4 millimeter under described polypropylene flame redardant upper epidermis (1), the polypropylene flame redardant, and the thickness of described middle expanded polypropylene sandwich layer (3) is the 4-18 millimeter.