Kvaliteta impregniranih elementov iz slovenskih prodajnih centrov : diplomsko delo - univerzitetni študij

Drnovšek, Simon (author), Humar, Miha (mentor), Thaler, Nejc (comentor), Lesar, Boštjan (reviewer)

V slovenskih trgovskih centrih lahko kupimo najrazličnejše izdelke iz globinsko zaščitenega lesa. Izdelki naj bi odgovarjali uporabi v četrtem razredu ogroženosti (v stiku z zemljo). Deset naključno izbranih vzorcev smo pripravili za določitev globine prodora in navzema zaščitnega sredstva, ter za testiranje odpornosti na glive razkrojevalke lesa. Vzorci so bili iz smrekovine in redečega bora, ki navadno predstavljajo probleme pri globinski zaščiti lesa. Globino prodora smo določili glede na standard SIST EN 351-1. Zahtevano retencijo smo določili glede na dokument NWPC iz leta 2015. Vzorce smo za 12 tednov izpostavili beli hišni gobi in navadni tramovki. Zadostni globini prodora je ustrezalo pet vzorcev od desetih. Zahtevane retencije (16 kg/m3) nismo določili pri nobenem od vzorcev. Prav tako noben izmed vzorcev ni izkazal ustrezne odpornosti na delovanje bele hišne gobe. V primeru izpostavitve vzorcev navadni tramovki je zahtevam ustrezalo le pet vzorcev. Na podlagi rezultatov lahko sklenemo, da noben od vzorcev ne ustreza zahtevam več kot dveh kriterijev od štirih. Zaključni sklep je, da so naključno izbrani vzorci, kupljeni v maloprodaji slabo globinsko zaščiteni in ne ustrezajo zahtevam in namembnosti, za katere se jih prodaja.

• Language: Slovenian
• Keywords: biocidni pripravki, impregnirani vzorci, impregnirana smrekovina, impregniran rdeči bor, zaščita lesa, navzem zaščitnega sredstva, globina prodora zaščitnega sredstva
• Work type: Undergraduate thesis
• Typology: 2.11 - Undergraduate Thesis
• Organization: BF - Biotechnical Faculty
• Place of publishing: Ljubljana
• Publisher: S. Drnovšek
• Year: 2016
• Number of pages: X, 58 f.
• PID: 20.500.12556/RUL-158786
• UDC: 630*84
• COBISS.SI-ID: 2658441
• Publication date in RUL: 20.06.2024

Secondary language

• Language: English
• Title: Quality of impregnated elements from Slovenian sales centers : graduation thesis - university studies

Abstract

In Slovenian sales centers we can buy various products from deep preserved wood. These products shall be used in fourth hazard class (in ground contact). We prepared ten randomly selected samples to determine penetration and retention of preservation and for testing resistance to wood decay fungi. Samples were made from spruce and Scots pine which usually represents problems in deep wood preservation. Penetration was determined according to standard SIST EN 351-1, 2007. Required retention was determined according to the document NWPC from 2015. For 12 weeks the samples were exposed to two decay fungi Poria moticola and Gloeophyllum trabeum. Sufficient penetration corresponded five samples from ten. Required retention (16 kg/m3) were not found in any of the samples. Also none of the samples did not show any resistance to Poria monticola. In case of exposere to Gloeophyllum trabeum only five samples corresponded to requirements. Based on the results, we can conclude that neither sample meets the requirements of more than two of the four criteria. Final conclusion is that the randomly selected samples purchased in retail are bad preserved and does not meet the requirements and purposes for which they are sold.

• Keywords: biocidal products, impregnated samples, impregnated spruce, impregnated scots pine, wood preservation, retention of preservative, penetration of preservative