Iskanje po repozitoriju

Push-out resistance of threaded wooden dowels in cross-laminated timber with hardwood cross-layer
Lei Han, Mohammad Derikvand, Jakub Michal Sandak, Martin Hladnik, Dick Sandberg, Andreja Kutnar, 2025, izvirni znanstveni članek

Opis: Europe is experiencing a shift in timber resource availability, with a decline in softwoods and an increase in hardwoods, creating a need to explore the utilisation of hardwoods, particularly in construction, where softwoods have traditionally been predominant. This research aimed to assess the potential of using hardwood in hybrid, doweled cross-laminated timber (DCLT) fabricated with pre-dried threaded beech dowels. The objective was to evaluate the push-out resistance of beech dowels in a three-layer DCLT with spruce in the outer longitudinal layers and beech, poplar, or spruce in the cross-layer. The DCLT specimens were conditioned at various temperatures and relative-humidity (RH) levels before the push-out test. The specimens with beech cross-layer exhibited a higher push-out resistance than those made entirely of spruce. In contrast, using poplar in the cross-layer showed no considerable difference in push-out resistance compared to using spruce. Exposure to 70 °C and 10% RH for three days decreased the push-out resistance in all groups due to extreme shrinkage of the lamellae, whereas exposure to 20 °C and 65% RH for either 60 days or 240 days resulted in higher push-out resistance for DCLT with a beech cross-layer.
Ključne besede: DCLT, underutilised species, hardwood, dowel
Objavljeno v RUP: 12.09.2025; Ogledov: 535; Prenosov: 12
Celotno besedilo (1,60 MB)
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Impact of drying process on kraft lignin : ligninwater interaction mechanism study by 2D NIR correlation spectroscopy
Oihana Gordobil, Rene Alexander Herrera Diaz, Faksawat Poohphajai, Jakub Michal Sandak, Anna Malgorzata Sandak, 2021, izvirni znanstveni članek

Ključne besede: hardwood kraft lignin, drying temperature, DVS, NIR spectroscopy, 2D-COS
Objavljeno v RUP: 06.05.2021; Ogledov: 3706; Prenosov: 11
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Thermo-hydro mechanical densification process of Nothofagus pumilio and Nothofagus antarctica and the effect of annual width ring on modulus of hardness, and dynamical mechanical properties
Jaka Gašper Pečnik, Matthew Schwarzkopf, Andreja Kutnar, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: beech, densification, densification rate, hardwood, modification
Objavljeno v RUP: 18.12.2018; Ogledov: 4063; Prenosov: 131
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Performance of 3-layer composites with densified surface layers of Nothofagus species of Southern Patagonian forests
Matthew Schwarzkopf, Michael David Burnard, Guillermo Martinez Pastur, Lucas Monelos, Andreja Kutnar, 2017, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: beech, densified, hardwood, mechanics, wood modification
Objavljeno v RUP: 15.11.2017; Ogledov: 4966; Prenosov: 84
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