RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
The analysis of long-time-exposed tars from wood shingles from church roofs and facades in mid-Sweden
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknik.ORCID-id: 0000-0002-7711-9267
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknik.ORCID-id: 0000-0003-0852-5066
2024 (engelsk)Inngår i: Wood Material Science & Engineering, ISSN 1748-0272, E-ISSN 1748-0280Artikkel i tidsskrift (Fagfellevurdert) Epub ahead of print
Abstract [en]

Poor condition of roofs in terms of decay of shingles and loss of tar-based surface treatments has been revealed in a number of churches at various geographical locations in mid-Sweden. The condition of tars obtained from shingles of selected churches in mid-Sweden were analysed and obtained data were compared with geographical locations of the churches. According to gas chromatography-mass spectroscopy result, dehydroabietic acid was the dominant compound found in the exposed tars from the churches except in church of Malung where similar amounts of retene was found. Oxidised resin acids were found in exposed tars from the churches but not in commercially available pit burned tar. Tar from church shingles had higher char residues than the pit burned tar which was totally consumed when heated under nitrogen gas up to 750°C using thermogravimetric analysis. Scanning electron microscopy with energy dispersive X-ray spectrometer analysis revealed higher amounts of silicates in some exposed tars; however, these compounds constituted only a minor portion of the organic matter in these specimens. Based on the data obtained in the study other factors rather than simply geographical location of churches seemed to be of importance to explain differences of the investigated properties of the church tars.

sted, utgiver, år, opplag, sider
Taylor & Francis, 2024.
Emneord [en]
GC-MS, Resin acids, SEM-EDX, TGA
HSV kategori
Forskningsprogram
Träteknik
Identifikatorer
URN: urn:nbn:se:ltu:diva-104861DOI: 10.1080/17480272.2024.2311169Scopus ID: 2-s2.0-85188097692OAI: oai:DiVA.org:ltu-104861DiVA, id: diva2:1846787
Prosjekter
Biobasedfire protection of wood panel for exterior conditions by using phosphorylated lignin from wheat straw
Forskningsfinansiär
Swedish Research Council Formas, 2021-00818
Merknad

Funder: CT WOOD, Luleå University of Technology;

Full text license: CC BY 4.0

Tilgjengelig fra: 2024-03-25 Laget: 2024-03-25 Sist oppdatert: 2024-03-25

Open Access i DiVA

fulltext(2865 kB)29 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 2865 kBChecksum SHA-512
ee3d5289e84c7324000cfedfa89208b72b8ed6adbc486fb2027f1571e6d9d18685167fec5a6cb7797b7c9d986e8d182d09c362b73e4a232be64c1d7a8c21ce21
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekstScopus

Person

Karlsson, OlovLin, Chia-Feng

Søk i DiVA

Av forfatter/redaktør
Karlsson, OlovLin, Chia-Feng
Av organisasjonen
I samme tidsskrift
Wood Material Science & Engineering

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 29 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 288 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf