Bonding Characteristics of CLT Made from Silver Birch (Betula pendula Roth.), European Aspen (Populus tremula L.) and Norway Spruce (Picea abies (L.) H. Karst.) Wood
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F24%3A100392" target="_blank" >RIV/60460709:41320/24:100392 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.3390/f15091656" target="_blank" >http://dx.doi.org/10.3390/f15091656</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/f15091656" target="_blank" >10.3390/f15091656</a>
Alternative languages
Result language
angličtina
Original language name
Bonding Characteristics of CLT Made from Silver Birch (Betula pendula Roth.), European Aspen (Populus tremula L.) and Norway Spruce (Picea abies (L.) H. Karst.) Wood
Original language description
This paper deals with the bonding characteristics of cross-laminated timber (CLT) panels made of Silver birch (Betula pendula Roth.), European aspen (Populus tremula L.), and Norway spruce (Picea abies (L.) H. Karst.) wood. Three-layered single-species CLT panels were manufactured using birch, aspen, and spruce lamellae bonded with a one-component polyurethane (PUR) adhesive. Spruce CLT panels were used as reference. The bonding characteristics of CLT were assessed based on bond shear strength, total and maximum delamination, and wood failure percentage. The reference spruce CLT met both criteria (Delam(tot) <= 10%, Delam(max) <= 40%) for passing the delamination test, where up to 80% of the test samples passed. The aspen and birch CLTs met the criterion for maximum delamination (26.5% and 33.2%, respectively), but exceeded the maximum allowed value for total delamination (12.7% and 13.2%, respectively). However, the minimum requirement of 70% wood failure percentage (WFP) was met for all CLT types, with aspen CLTs achieving 83.7% and birch CLTs 76.9%. The spruce CLTs achieved an average bond shear strength of 1.9 N/mm(2), while both hardwood CLTs had significantly higher values, with the aspen CLT at 3.3 N/mm(2) and the birch CLT at up to 3.9 N/mm(2). Based on the results obtained, it can be concluded that cross-laminated timber (CLT) made from hardwoods like aspen and birch is suitable for environments with low humidity fluctuations.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
40100 - Agriculture, Forestry, and Fisheries
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
FORESTS
ISSN
1999-4907
e-ISSN
1999-4907
Volume of the periodical
15
Issue of the periodical within the volume
9.0
Country of publishing house
CZ - CZECH REPUBLIC
Number of pages
13
Pages from-to
1-13
UT code for WoS article
001326533800001
EID of the result in the Scopus database
2-s2.0-85204933912