Modelling timber decay caused by brown rot fungi

Brischke, Christian; Meyer-Veltrup, Linda

doi:10.1617/s11527-015-0719-y

Cited by 37 publications

(28 citation statements)

References 19 publications

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“…A dose-response model for the fungal decay of wood in aboveground situations, as described in detail by Brischke and Meyer-Veltrup [34], was applied to the recorded material-climatic data (MC, T). For comparative analysis, the total dose D (= cumulative daily dose d over time) was determined.…”

Section: Dose-response Modelmentioning

confidence: 99%

The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability

Humar

Kržišnik

Lesar

et al. 2019

Forests

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Wood is one of the most important construction materials, and its use in building applications has increased in recent decades. In order to enable even more extensive and reliable use of wood, we need to understand the factors affecting wood’s service life. A new concept for characterizing the durability of wood-based materials and for predicting the service life of wood has recently been proposed, based on material-inherent protective properties, moisture performance, and the climate- and design-induced exposure dose of wooden structures. This approach was validated on the decking of a model house in Ljubljana that was constructed in October 2013. The decay and moisture content of decking elements were regularly monitored. In addition, the resistance dose DRd, as the product of the critical dose Dcrit, and two factors taking into account the wetting ability of wood (kwa) and its inherent durability (kinh), were determined in the laboratory. DRd correlated well with the decay rates of the decking of the model house. Furthermore, the positive effect of thermal modification and water-repellent treatments on the outdoor performance of the examined materials was evident, as well as the synergistic effects between moisture performance and inherent durability.

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Section: Dose-response Modelmentioning

confidence: 99%

The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability

Humar

Kržišnik

Lesar

et al. 2019

Forests

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“…This deterioration drastically decreases the strength properties of wood, which creates a challenge in controlling and analyzing various factors, in addition to the physical-chemical factors, that have a potential impact on the useful life of wood (Edlund and Nilsson 1998;Isaksson et al 2013). The association between the different factors that cause wood deterioration and its strength properties has been the focus of research that predicts the length of the useful life and performance of wood in service (van de Kuilen 2007;Brischke and Meyer-Veltrup 2016).…”

Section: Introductionmentioning

confidence: 99%

Influence of CCA-A preservative on physical-mechanical properties of Brazilian tropical woods

Almeida

Criscuolo

Almeida

et al. 2019

BioRes

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Fast-growing species are gradually being used more in the Brazilian timber market. Such species are more susceptible to deterioration and require conservative treatment to prolong their service life. This work analyzed the influence of the chromated copper arsenate oxide (CCA-A) treatment on the physical-mechanical properties of the tropical woods Simarouba amara (C20), Cedrelinga catenaeformis (C30), and Erisma uncinatum (C40), which were chosen to cover the three lower strength classes, as prescribed by Brazilian Standard Norm. The CCA-A was applied to the wood with the vacuum-pressure process, which could increase the amount of surface defects and weaken the wood properties. To investigate the influence of this process, complete characterization of the species with and without CCA-A was performed, and a Tukey’s multiple comparisons test (5% significance level) was applied. Also, scanning electron microscopy (SEM) images and energy dispersive spectra (EDS) were obtained to investigate the behavior of the preservative at the cellular level. Through the obtained results, it was concluded that the CCA did not affect the physical-mechanical properties of the studied species.

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“…To nenazadnje dokazujejo tudi številne objave (npr. : Humar et al, 2015;Brischke & Meyer-Veltrup, 2016;Žlahtič Zupanc et al, 2018;Kržišnik et al, , 2018. Povprečna vlažnost lesenih eksponatov v bunkerju se je gibala med 21 % in 54 % (Preglednica 2).…”

Section: Rezultati In Razprava Results and Discussionunclassified

Evaluation of the wood degradation in the underground fort Goli vrh

Humar

Lesar²,

Žagar³

et al. 2019

les-wood

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Izvleček / AbstractIzvleček: Pred drugo svetovno vojno so v okolici Golega vrha postavili obsežno podzemno utrdbo. Še od časa izgradnje je v utrdbi ostalo nekaj lesa, dodatno so pred leti namestili nekaj lesenih razstavnih predmetov. Na lesu je bilo nekaj let po odprtju opaziti obsežen glivni razkroj. V utrdbi smo namestili senzor za spremljanje relativne zračne vlažnosti in temperature, izolirali nekaj vzorcev lesa in jih preiskali z rentgensko fluorescenčno spektroskopijo in lasersko konfokalno vrstično mikroskopijo. Analiza je potrdila visoko vlažnost lesa in prisotnost gliv razkrojevalk na vseh lesenih eksponatih z izjemo lesenih zabojnikov za strelivo.Abstract: Before the Second World War, a large underground fortress was built around Goli vrh. Some wood remains in the fort from the time of construction, and some wooden objects have been exhibited in the fort. Several years after the opening of the fort, large scale decomposition was observed on the wood. A sensor for monitoring the relative air humidity and temperature was installed. In addition, a few samples of wood were isolated and examined by X-ray fluorescence spectroscopy and laser confocal linear microscopy. The analysis confirmed the high humidity of the wood and the presence of wood decay fungi on all wood objects, with the exception of wooden ammunition boxes.

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Modelling timber decay caused by brown rot fungi

Cited by 37 publications

References 19 publications

The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability

The Performance of Wood Decking after Five Years of Exposure: Verification of the Combined Effect of Wetting Ability and Durability

Influence of CCA-A preservative on physical-mechanical properties of Brazilian tropical woods

Evaluation of the wood degradation in the underground fort Goli vrh

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