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Kennisdocument of (onderzoeks)rapport

Fire resistance of concrete in road tunnels

Algemene informatie

Auteur Ben van den Horn and Karin Clement
Uitgever KPT
Uitgavedatum 07 oktober 2021
Gepubliceerd 15 september 2022

Toepassingen

Tunnels

Samenvatting

This publication contains an overview of the results obtained through a collaborative process of those interested parties, facilitated by the Knowledge Platform for Tunnel Safety (KPT). On 8 August 2017, the Minister of Infrastructure and Water Management sent a letter to the Dutch House of Representatives concerning the reduced fire resistance of concrete in four tunnels as established following an investigation by Rijkswaterstaat. This received extensive media attention and the findings led to many questions from various interested parties. After...

This publication contains an overview of the results obtained through a collaborative process of those interested parties, facilitated by the Knowledge Platform for Tunnel Safety (KPT).

On 8 August 2017, the Minister of Infrastructure and Water Management sent a letter to the Dutch House of Representatives concerning the reduced fire resistance of concrete in four tunnels as established following an investigation by Rijkswaterstaat. This received extensive media attention and the findings led to many questions from various interested parties. After feedback in three national meetings, all the knowledge gathered was shared with the tunnel sector and recorded in this publication. This concludes the collaboration in four working groups (discussion tables) that started in 2018. The KPT remains available as a point of contact for questions about the published information on its website which can be found via the links in this document.

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Research commissioned by Rijkswaterstaat has shown that the fire resistance of tunnels made of ROK concrete may be impaired. In response to this, four discussion tables were set up at the end of 2017 under the coordination of the Knowledge Platform for Tunnel Safety (KPT) with the aim of discussing the problems outlined above from various perspectives. These are the discussion tables for Existing Tunnels, New Tunnels, Research, and Emergency Services.  This document was prepared by Discussion Table - Research in response to the request for further substantiation of the final conclusions. The explanations presented here basically reflect the way in which each conclusion was reached and the reasons for it. The conclusions (and the explanations) should, however, be considered as a whole, in view of the order in which they are reached and to safeguard the message.

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