Naslov
Shear strength of weathered soft rock – proposal of test method additions

Autori
Miščević, Predrag ; Vlastelica, Goran

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

Izvornik
Proceedings of the Regional Symposium of the International Society for Rock Mechanics, EUROCK 2009, Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst / Vrkljan, Ivan - London : Delhi : CRC Press ; A.A. Balkema Publishers ; Taylor & Francis, 2009, 303-307

ISBN
978-0-415-80481-3

Skup
EUROCK 2009 Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst

Mjesto i datum
Cavtat, Hrvatska, 28.10.2009. - 31.10.2009

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
marl ; weathering ; shear strength

Sažetak
One of the main soft (weak, clay-bearing) rocks characteristic is relatively rapid deterioration and degradation of strength when soft rock is exposed to atmospheric agents (i.e. weathering). In the investigation of strength degradation caused with weathering, wetting – drying process as a part of weathering, can cause problems even with preparation of samples for testing. In contact with water, moisture of the material is changed and deterioration process is initiated. In order to overcome problem with sample preparation, additions to test procedure are proposed. Additions are tested on marl samples from Eocene flysch formation. Before immersion into the plaster for testing, samples were covered with a thin metal net and subjected to weathering. Purpose of the net is to hold sample as one unit, because during the weathering sample break into smaller peaces. Weathering of samples was simulated with wetting-drying process in laboratory conditions. Acquired results on weathered samples are compared with shear strength of unweathered samples.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA