Effects of drying on Atterberg limits of pyroclastic soils of Northern Turkey

Date

2018-09-15

Author

Huvaj Sarıhan, Nejan

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

230
views

0
downloads

In this study, the effects of drying on Atterberg limits is investigated using 30 soil samples taken from 0.2 m to 4 m depths, from nine different landslide sites in pyroclastic deposits in Northern Turkey. Samples for Atterberg limits are prepared by (i) starting from in-situ moisture content without any drying, (ii) drying at 60 degrees C and (iii) drying at 110 degrees C. The range of liquid limit values is 35%-103% and plasticity index is 0%-37% when samples are prepared from their in-situ moisture content. Liquid limits of the samples, when they are prepared by drying at 110 degrees C oven, are 1%-30% lower than the liquid limits prepared from moist condition. The mineralogy of the samples is investigated via X-ray diffraction analyses and Scanning Electron Microscopy photographs, indicating existence of halloysite mineral. Organic contents of the samples, determined by loss on ignition test, is in the range of 4.3%-12.1%. It is concluded that drying significantly influences the results of Atterberg limits if the sample contains some organic material and/or halloysite mineral. Both liquid limit and plasticity index values of the soils decreased as the sample preparation method changed from moist preparation to drying at 110 degrees C. Existing soil classification methods may fail to represent the influence of organic matter on soil behaviour for soils containing < 15% organic material.

Subject Keywords

Atterberg limits, Organic soil, Dyring, Liquid limit, Pyrodastic

URI

https://hdl.handle.net/11511/34904

Journal

APPLIED CLAY SCIENCE

DOI

https://doi.org/10.1016/j.clay.2018.05.020

Collections

Department of Civil Engineering, Article

Suggestions

OpenMETU
Core

Influence of swell on shear strength of expansive soils Deliktaş, Ceren; Çokça, Erdal; Department of Civil Engineering (2016) Behavior of swelling soils is thoroughly investigated since they cause significant hazard to structures all around the world, especially in the regions with climate of arid or semi-arid. These types of soils expand upon wetting and shrink when water is removed. Existence of water significantly alters the shear strength of swelling soils. Therefore, the objective of this study is to examine the influence of swell on the shear strength of expansive soils. For the first series of tests, an artificial expansive...
Effects of climate change on water resources in Ömerli basin Kara, Fatih; Yücel, İsmail; Akyürek, Sevda Zuhal; Department of Geodetic and Geographical Information Technologies (2014) This study investigates the impacts of climate change on water resources through precipitation and discharge analyses in Omerli catchment Istanbul, Turkey. Precipitation and temperature data are obtained from GCM (Global Circulation Model)/RCM (Regional Climate Model) combinations based on A1B carbon scenario via Europen Union (EU)-ENSEMBLESproject. The data is obtained at 25 km resolution on daily time scale for reference period between 1960 and 1990 and future period between 2071 and 2100. The HBV (Hydrol...
Impact of fertilizer usage on phosphorus loads to Lake Uluabat BULUT, Elif; Aksoy, Ayşegül (Elsevier BV, 2008-06-25) This work investigated the role of fertilizer application rate on phosphorus (P) transport and loading to Lake Uluabat in Turkey. For this purpose ArcView Interface of Soil and Water Assessment Tool 2000 (AVSWAT) was used. Results showed that when the fertilizer amount applied to agricultural lands was doubled, the P load to Lake Uluabat increased by 32%. P transported to Lake Uluabat declined by about 6, 10 and 16%, when the fertilizer usage at the agricultural fields were decreased by 20, 30 and 50%, resp...
Effect of fly ash on swell pressure of an expansive soil Çokça, Erdal (1999-12-01) This paper discusses the effect of Fly ash on the engineering properties of expansive soils. As reviewed in literature, many previous investigations have shown promising results for improvement of expansive soil after stabilization with Fly ash. Laboratory tests have been conducted on expansive soils obtained from three different regions in Khartoum state. Various percentages of Fly ash such as 0%, 10%, 20%, 25%, and 30% by weight of soil were added to the three soils and their inf...
Effect of material characteristics on the properties of blended cements containing high volumes of natural pozzolans Turanlı, Lutfullah; Uzal, B; Bektas, F (Elsevier BV, 2004-12-01) The effect of three different natural pozzolans from Turkish deposits on the properties of blended cements produced by intergrinding cement clinker with a high volume of natural pozzolan (55 wt.% of the cementitious material) was investigated. The particle size distribution of blended cements, setting time, heat of hydration, and compressive strength of blended cement mortars were determined. Experimental results showed that the hardness of the pozzolanic material strongly influenced the particle size distr...

Citation Formats

N. Huvaj Sarıhan, “Effects of drying on Atterberg limits of pyroclastic soils of Northern Turkey,” APPLIED CLAY SCIENCE, pp. 46–56, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/34904.