Lastnosti železniških pragov, impregniranih z baker-etanolaminskimi pripravki, po štirih letih izpostavitve na prostem

diplomsko delo

Luka Goropečnik (Author), Boštjan Lesar (Reviewer), Miha Humar (Mentor)

Abstract

Les na prostem je izpostavljen biotskim in abiotskim dejavnikom razkroja. V naravi so ti procesi zaželeni, kadar pa les uporabljamo v gospodarske namene, jih želimo čim bolj upočasniti. Če les ni ustrezno vgrajen ali zaščiten, lahko zaradi delovanja gliv v kratkem času propade. Les se pogosto uporablja v infrastrukturne namene, kot so na primer železniški pragovi. Zaščita železniških pragov je ena najstarejših aplikacij zaščite lesa v praksi. V preteklosti so za zaščito železniških pragov uporabljali predvsem kreozotno olje. Zaradi okoljske neprimernosti bo kreozotno olje prej ali slej prepovedano, zato je treba razviti ustrezne alternative. Ena od alternativ so bakrovi pripravki. Ti se odlično obnesejo za zaščito lesa iglavcev, o zaščiti mehansko obremenjenega bukovega lesa pa ni podatkov. V diplomski nalogi smo določili razkrojenost, koncentracijo bakrovih učinkovin, osnovne mehanske lastnosti železniških pragov, impregniranih z baker-etanolaminskimi pripravki in potrdili, da na bukovih pragovih ni opaziti znakov razkroja, če so pragovi impregnirani s pripravkom višje koncentracije.

Keywords

železniški pragovi;Fagus sylvatica;kreozotno olje;baker-etanolaminski pripravki;mehanske lastnosti;les;

Data

Language:	Slovenian
Year of publishing:	2019
Typology:	2.11 - Undergraduate Thesis
Organization:	UL BF - Biotechnical Faculty
Publisher:	[L. Goropečnik]
UDC:	630831.6:630844.4
COBISS:	3112073
Views:	1061
Downloads:	198
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Properties od railway sleepers, impregnated with copper-ethanolamine preservative solutions, after four years of outdoor exposure
Secondary abstract:	Outdoor wood is exposed to biotic and abiotic degradation factors. In nature, these processes are desirable, but when wood is used for economic purposes, these processes needs to be slowed as much as possible. If the wood is not properly installed or protected, it can degrade in a short time due to fungi. Railway sleeper protection is one of the oldest wood protection applications. In the past, creosote oil was predominately used to protect railway sleepers. Due to environmental issues, creosote oil will be removed from the market sooner or later. Therefore, alternatives have to be developed. Some of the possible alternative are copper based preservatives. The thesis addresses the degradation, remaining concentration of copper active ingredients, and relevant mechanical properties of railway sleepers impregnated with copper-ethanolamine solutions that were exposed in outdoor conditions for four years. There were no detectable signs of fungal degradation observed on beech sleepers if the sleepers are impregnated with preservative solution in a higher concentration.
Secondary keywords:	railway sleepers;Fagus sylvatica;creosote oil;copper-ethanolamine preservative;mechanical properties;decay;
Type (COBISS):	Bachelor thesis/paper
Study programme:	0
Thesis comment:	Univ. v Ljubljani, Biotehniška fak., Oddelek za lesarstvo
Pages:	X, 45 f.
ID:	11227602