Eighth International Conference on Case Histories in Geotechnical Engineering
Drying Changes Consistency Limits
Publication: Geo-Congress 2019: Geotechnical Materials, Modeling, and Testing (GSP 310)
ABSTRACT
This study focuses on the effects of drying on consistency limits. To observe the drying effects, samples for Atterberg limits were prepared (i) by starting from in situ moisture content without any drying, (ii) after drying at 60°C, and (iii) after drying at 110°C oven. When the samples were prepared by starting from their natural moisture content, the liquid limit values was 35% to 81% (1% to 26% higher with respect to the case of no drying) and plasticity index was 0% to 31%. Organic content of the samples were determined by loss on ignition test and were in the range of 4.3% to 12.1%. The mineralogy of the samples was investigated via XRD and SEM, and halloysite mineral was encountered. It is concluded that soils containing organic matter, and/or formed by weathering of volcanic rocks should not be oven dried when soil mechanics index tests are to be conducted, since their properties are significantly influenced due to irreversible dehydration.
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ACKNOWLEDGEMENTS
The authors acknowledge the help provided by Mustafa Hüseyinpaşaoğlu from Turkish National Disaster Agency (AFAD)’s Rize office, Ozan Dadasbilge from GEOCON Company, undergraduate students Berkutay Binol and Isam Khasib for their help during soil sampling, and Mr. Hilmi Bayraktaroglu for his help in the lab.
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Information & Authors
Information
Published In
Geo-Congress 2019: Geotechnical Materials, Modeling, and Testing (GSP 310)
Pages: 532 - 540
Editors: Christopher L. Meehan, Ph.D., University of Delaware, Sanjeev Kumar, Ph.D., Southern Illinois University Carbondale, Miguel A. Pando, Ph.D., University of North Carolina Charlotte, and Joseph T. Coe, Ph.D., Temple University
ISBN (Online): 978-0-7844-8212-4
Copyright
© 2019 American Society of Civil Engineers.
History
Published online: Mar 21, 2019
Published in print: Mar 21, 2019
ASCE Technical Topics:
- Case studies
- Continuum mechanics
- Deformation (mechanics)
- Engineering fundamentals
- Engineering mechanics
- Field tests
- Geology
- Geomechanics
- Geotechnical engineering
- Hydrologic engineering
- Hydrologic properties
- Hydrology
- Methodology (by type)
- Minerals
- Plasticity
- Research methods (by type)
- Rock mechanics
- Rock properties
- Rocks
- Soil mechanics
- Soil properties
- Solid mechanics
- Structural mechanics
- Tests (by type)
- Volcanic deposits
- Water and water resources
- Water content
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