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Small-scale test method for the fire behaviour of woodadhesive bonds in CLT
RISE - Research Institutes of Sweden, Bioeconomy, Biobased Materials.
RISE - Research Institutes of Sweden, Built Environment, Building Technology.
Tallinn University of Technology, Estonia.
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2018 (English)In: Book of abstracts of the final conference COST FP1404”Fire Safe Use of Bio-Based Building Products”, 2018Conference paper, Published paper (Other academic)
Abstract [en]

There is an increasing use of cross laminated timber (CLT) in the building sector. CLT is a wood panel product made from layers of solid lumber boards. Each layer of boards is oriented perpendicular to adjacent layers and glued on the wide faces of each board. It has been recognised that different adhesive systems have different behaviour in fire; especially that delamination behaviour of CLT can be avoided by choosing a suitable adhesive system. The best method for evaluation of the delamination is a full‐scale fire test, but considering the high costs of such tests, it is of the utmost importance to develop small‐scale methods for evaluating the adhesive bond properties in fire. The intention is that such small‐scale methods should provide the same results as full‐scale tests. A new, smaller scale method for classifying adhesives with respect to  fire properties would also simplify  the planning of  full scale  tests. Previous  tested small‐scale method for evaluation of finger joints is presented in (1).  In this study, a small‐scale fire test methodology for evaluation of CLT adhesive bond performance in  fire  is  introduced  (2).  The  aim  was  to  demonstrate  an  easy  tool  to  distinguish  between  fire resistant adhesive bonds and non‐fire‐resistant bonds, especially with respect to delamination. The cone heater of a cone calorimeter was used to carry out the tests. Cone calorimeter in accordance with ISO 5660 is one of the most widely used bench‐scale instrument in fire research. This small‐scale  device  has  several  advantages  over  larger‐scale  tests  thanks  to  its  fast,  simple  and  cost‐efficient manner to investigate basic material properties.  

Place, publisher, year, edition, pages
2018.
Keywords [en]
cross laminated timber, adhesives, delamination, fire performance, small‐scale test
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-36538OAI: oai:DiVA.org:ri-36538DiVA, id: diva2:1266164
Conference
COST FP 1404 Final Conference
Available from: 2018-11-27 Created: 2018-11-27 Last updated: 2019-06-27Bibliographically approved

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https://www.ethz.ch/content/dam/ethz/special-interest/baug/ibk/costfp1404-dam/internal-documents/all/N248-07-Final-Conference-Proceedings_v13_ONLINE.pdf

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Brandon, DanielJust, Alar

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