Pregled bibliografske jedinice broj: 642510
The relationship between swelling and shear strength properties of bentonites
The relationship between swelling and shear strength properties of bentonites // Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering / Delage, P. ; Desrues, J. ; Frank, R. ; Puech, A. ; Schlosser, F. (ur.).
Pariz: Presses des ponts, 2013. str. 219-222 (ostalo, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
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Naslov
The relationship between swelling and shear strength properties of bentonites
Autori
Domitrović, Dubravko ; Kovačević Zelić, Biljana
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering
/ Delage, P. ; Desrues, J. ; Frank, R. ; Puech, A. ; Schlosser, F. - Pariz : Presses des ponts, 2013, 219-222
Skup
18th International Conference on Soil Mechanics and Geotechnical Engineering - Challenges and Innovations in Geotechnics
Mjesto i datum
Pariz, Francuska, 02.09.2013. - 06.09.2013
Vrsta sudjelovanja
Ostalo
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
Bentonite ; Swelling ; Direct shear test ; Shear strength
Sažetak
Clay Geosynthetic Barriers are manufactured hydraulic barriers. The mineral component usually consists of bentonite, which belongs to a group of expansive soils. The aim of this study was to establish the influence of swelling on mechanical properties of bentonites. For this purpose, granular bentonite Volclay was chosen for laboratory testing. Its mineralogical composition was predominantly montmorillonite (80% - 85% by mass). The correlation between swelling and water content on one side and changes in shear strength i.e. shear strength parameters on the other were tested using a direct shear device. During several series of testing, different levels of swelling ofbentonite were simulated under the conditions of changing normal stress and hydration times. Swelling behaviour of bentonite was determined through the long-term swelling tests using oedometer, under changing normal stress. Shear strength testing show decreasing cohesion with longer hydration of bentonite. The friction angle increases with hydration that lasts from 7 to 14 days. There is no significant change in the friction angle with hydration time longer than 14 days.
Izvorni jezik
Engleski
Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo
POVEZANOST RADA
Projekti:
195-0831529-1847 - Ispitivanje trajnosti mineralnih brtvenih barijera (Kovačević Zelić, Biljana, MZOS ) ( CroRIS)
Ustanove:
Rudarsko-geološko-naftni fakultet, Zagreb
Citiraj ovu publikaciju:
Časopis indeksira:
- Web of Science Core Collection (WoSCC)
- Conference Proceedings Citation Index - Science (CPCI-S)
