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Fire-resistant element for covering a concrete surface

A concrete surface, concrete technology, which is applied in the fields of earthwork drilling, building construction, wellbore lining, etc., can solve the problems of time and resources consumption, etc.

Inactive Publication Date: 2018-07-31
PROMAT BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As you can imagine, with the enormous surface area of ​​a typical tunnel to be covered by fire panels, the installation of screws consumes valuable time and resources

Method used

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  • Fire-resistant element for covering a concrete surface
  • Fire-resistant element for covering a concrete surface
  • Fire-resistant element for covering a concrete surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] figure 1 A tunnel 1 is shown having a typical tunnel structure with a ceiling 11 and side walls 12 , 13 . In this exemplary embodiment, the tunnel 1 has chamfered sections 14 , 15 between the ceiling and the respective side walls 12 , 13 . The tunnel 1 defines an inner tunnel space H. The tunnel structure is constructed by pouring concrete 9 into the formwork 3 and setting said concrete 9 into the concrete layer 2 . The formwork 3 can then be removed. The formwork 3 comprises outer walls 31, 32 defining the sides of the side walls 12, 13 of the tunnel 1 facing away from the inner tunnel volume H and inner walls 33 defining the ceiling 11 and the side facing the inner tunnel volume H The sides of the walls 12,13.

[0047] Such as figure 1 As shown in , the concrete layer 2 is lined on the inside, ie on the concrete surface 20 of the concrete layer 2 facing the inner tunnel volume H, with a plurality of structural elements 4 according to the exemplary first embodimen...

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PUM

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Abstract

The invention relates to a construction element (4) for covering a concrete surface (20), a construction comprising said construction element (4) and a method for covering a concrete surface (20) withsaid construction elements (4). The construction element (4) is provided with a plurality of anchoring elements (5) for anchoring the construction element to the concrete (9) when it is casted, wherein each anchoring element (5) comprises an opening (51) which is arranged to be in fluid communication with the concrete (9), a base (52) that is recessed and a circumferential wall (53) extending between the opening (51) and the base (52), wherein the circumferential wall (53) defines a volume for receiving the concrete (9) into the anchoring element (5), wherein each anchoring element (5) comprises at least one locking surface (6) that faces said volume and that is arranged to stop movement of the concrete (9) from the base (52) towards the opening (51), after the concrete (9) has cured, inan anchoring direction.

Description

technical field [0001] The invention relates to a structural element for covering concrete surfaces, in particular of tunnels. In particular, the structural element is a fire-resistant structural element for lining the interior of a tunnel. Background technique [0002] Known fire panels for tunnels are placed on the formwork of the tunnel, after which the concrete is poured into said formwork. The fire protection panels are arranged to cover the side of the formwork facing the tunnel interior such that after removal of the formwork the fire protection panels lie on the tunnel interior. It has been shown that, especially when the fire panels are arranged to cover the roof of the tunnel, the adhesion of the concrete to the fire panels is not sufficient for firmly holding the fire panels to the concrete. In order to attach the fire panels to the concrete, a large number of screws are installed into the fire panels, protruding from the side of the fire panels where the concre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10E21D11/38E04B1/16
CPCC09K21/02E21D11/10E21D11/38
Inventor B·德夫里斯M·布特H·奎普尔
Owner PROMAT BV