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Soil resistivity measurements to predict moisture content and density in loose and dense soil

Zainal Abidin, Mohd Hazreek and Ahmad, Fauziah and Wijeyesekera, Devapriya Chitral and Saad, Rosli and Tajul Baharuddin, Mohamad Faizal (2013) Soil resistivity measurements to predict moisture content and density in loose and dense soil. Applied Mechanics and Materials Journal. ISSN 1660-9336

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Abstract

In the past, most of the soil electrical resistivity charts were- developed based on stand-alone geomaterial classification with minimal contribution to its relationship to some of geotechnical parameters. Furthermore, the values cited a very wide range of resistivity with sometimes overlapping values and having little significance to specific soil condition. As a result, it created some ambiguities during the interpretation of observations which were traditionally based an qualitative anomaly judgments of experts and experienced people. Hence, this study presents soil resistivity values based on laboratory experiment with a view to predict the soil moisture content and density in loose and dense soils. This study used a soil box and a resistivity meter to test a clayey silt sail, increasing its water usage from 1-3% based on 1500 gram of dry soil. All the moisture contents and density data were observed concurrently with 25 electrical soil resistance observations being made on the soil All testing and formula used were In accordance with that specified in BS1377 (1990). It was apparent that the soil resistivity value was different under loose (L) and compact(C) condition with moisture content (w) and density (pbulk) correlations being established as follows; pbulk(C)=2.5991p-0.037, pbulk (L)=-0.111 ln(p) + 1.7605, W(L)=109.98p-0.286, and W(C)=121.88p-0.363 with determination coefficients, R2 that ranged between 0.69 - 0.89. This research therefore contributes a means of predicting these geotechnical parameters by related persons such as geophysicist, engineers and geologist who use these resistivity techniques in ground exploration.

Item Type: Article
Uncontrolled Keywords: soil resistivity; moisture content; densify; loose and dense soil
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Divisions: Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
Depositing User: Normajihan Abd. Rahman
Date Deposited: 23 Sep 2013 03:24
Last Modified: 23 Sep 2013 03:24
URI: http://eprints.uthm.edu.my/id/eprint/4084
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