Evaluation of the long-term durability of yellow travertine using accelerated weathering tests

Akin M., Özsan A.

Bulletin of Engineering Geology and the Environment, cilt.70, sa.1, ss.101-114, 2011 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 70 Sayı: 1
  • Basım Tarihi: 2011
  • Doi Numarası: 10.1007/s10064-010-0287-x
  • Dergi Adı: Bulletin of Engineering Geology and the Environment
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.101-114
  • Anahtar Kelimeler: Accelerated weathering test, Building stone, Deterioration, Disintegration, Salt crystallization, Travertine
  • Ankara Üniversitesi Adresli: Evet

Özet

The study investigated the long-term performance/durability of yellow travertine against various environmental processes using several accelerated weathering tests: wet-dry, freeze-thaw and salt crystallization. Prior to the accelerated weathering tests, the specimens were separated into two groups based on their porosities. The re-crystallization pressure of Na2SO4 salt was found to be the most destructive factor in the deterioration of the yellow travertine, with a maximum of 50% loss of integrity recorded. The recurrent cycles of wetting-drying and freezing-thawing caused relatively minor damage. After the experimental studies, the disintegration rate was statistically evaluated using the alteration index-alteration velocity and the decay function approaches. Both statistical models confirmed that the rate of disintegration was higher with salt re-crystallization pressures in the less porous yellow travertines compared with that resulting from wet-dry and freeze-thaw cycles. © 2010 Springer-Verlag.