Naslov
Influence of desiccation on swelling behavior of initially saturated swelling rocks

Autori
Vrkljan, Ivan ; Kavur, Boris ; Znidarčić Dobroslav

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Prceedings of the XIII. Danube-European Conference on Geotechnical Engineering / Logar, Janko ; Gaberc, Ana ; Majes, Bojan - Rotterdam : Boston (MA) : Taipei : A.A. Balkema Publishers, 2006, 159-164

Skup
XIII. Danube-European Conference on Geotechnical Engineering

Mjesto i datum
Ljubljana, Slovenija, 29.05.2006. - 31.05.2006

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
desiccation; swelling; rocks

Sažetak
The focus of the paper is the investigation and modeling of the behavior of initially saturated swelling rocks and soils during and after the desiccation process. The desiccation and swelling studies were performed on swelling rock samples collected at the Morenska Draga location near town of Kutina, Croatia. The experimental results have demonstrated that a saturated swelling rock does not swell and that upon desatura-tion its swelling potential is realized in contact with water. The extent of swelling depends on the initial deg-ree of saturation at the moment of wetting. The characteristics of the unsaturated zone must be known in or-der to predict the swelling behavior of natural expansive rock. The laboratory tests described here provide information for determining the necessary parameters. The numerical model used to predict moisture distribu-tion within the desicating sample provides a realistic description of the process. The presented results contri-bute to a better understanding of the swelling rock behavior and provide a rational framework for the analysis of the desiccation process and its influence on the swelling.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA