<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1794-6190</journal-id>
<journal-title><![CDATA[Earth Sciences Research Journal]]></journal-title>
<abbrev-journal-title><![CDATA[Earth Sci. Res. J.]]></abbrev-journal-title>
<issn>1794-6190</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1794-61902023000200169</article-id>
<article-id pub-id-type="doi">10.15446/esrj.v27n2.107646</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Influence of Compaction on Electrical Resistivity Characteristics of Fine-grained Soil East of Baghdad City, Iraq]]></article-title>
<article-title xml:lang="es"><![CDATA[Influencia de la compactación en las características de resistividad eléctrica para suelos de grano fino en el este de Baghdad, Iraq]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hassan]]></surname>
<given-names><![CDATA[Asem A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Diyala College of Science ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Iraq</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>27</volume>
<numero>2</numero>
<fpage>169</fpage>
<lpage>182</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S1794-61902023000200169&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S1794-61902023000200169&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S1794-61902023000200169&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In geotechnical practice, there is a continuous demand for an efficient method for measuring the soil moisture content and dry unit weight of compacted soils used in a wide range of earthwork constructions. The Electrical Resistivity method has increasingly been used for rapid and non-invasive assessment of some geotechnical properties. This study aims to evaluate the influence of Moisture Content (MC), Dry Unit Weight (DUW), and Compaction Energy (E) on the Electrical Resistivity (ER) of soil collected from the east of Baghdad City, Iraq. To achieve this goal, soil specimens were compacted to various MC and DUW found in geotechnical practice using different E levels. The ER of prepared specimens was measured using the two electrodes method and compared with various geotechnical parameters related to the compaction process. The results showed that the employed MC, DUW, and E levels influenced the ER. The higher the MC, DUW, and E, the lower the ER. However, the ER was more sensitive to these variables for specimens compacted dry of the optimum. Furthermore, the ER was correlated very well with Volumetric Moisture Content 0 and Degree of Saturation Sr of soil, with a high correlation coefficient (R2 &gt;94%) and very low p-values, which indicated that these correlations were statistically significant. The current findings indicate the usefulness of the ER method for predicting these parameters. Therefore, using the ER method as a rapid and cost-effective technique for the preliminary evaluation of soil compaction variables in earthwork constructions is recommended. However, the current laboratory findings must be confirmed on different soil types.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En la práctica geotécnica hay una demanda continua por un método eficiente para medir la humedad del suelo y el peso específico seco en suelos compactados ya que esta medida se usa en un amplio abanico de construcciones con movimientos de tierra. El uso del método de Resistividad Eléctrica (ER, del inglés Electrical Resistivity) se ha incrementado al permitir una evaluación rápida y no invasiva de las propiedades geotécnicas. Este estudio se enfoca en evaluar el Contenido de Humedad, el Peso Específico Seco y la Energía de Compactación en la Resistividad Eléctrica de muestras de suelo recolectadas al este de Baghdad, Iraq. Para alcanzar este objetivo, algunas muestras se compactaron a varios niveles de contenido de humedad y peso específico seco que se encuentran en la práctica geotécnica a diferentes niveles de energía de compactación. La resistividad eléctrica de las muestras preparadas se midió con el método de dos electrodos y se comparó con varios parámetros geotécnicos relacionados con el proceso de compactación. Los resultados muestran que los diferentes niveles de estos factores influyen en la resistividad eléctrica. A mayor nivel de humedad, peso específico seco y energía de compactación es menor la resistividad eléctrica. Sin embargo, la resistividad eléctrica fue más susceptible a estas variables en las muestras óptimas compactadas en seco. Además, la resistividad eléctrica se correlaciona muy bien con el Contenido de Humedad Volumétrico y el Grado de Saturación del suelo, con un alto coeficiente de correlación (R2 &gt;94%) y valores p muy bajos, lo que indica que estas correlaciones son estadísticamente significantes. Estos resultados indican la utilidad del método de resistividad eléctrica en la predicción de estos parámetros. Además, se recomienda el uso del método de resistividad eléctrica como una técnica rápida y efectiva en costos para la evaluación preliminar de las variables de compactación del suelo en construcciones con movimientos de tierra. De todas formas, estos hallazgos en el laboratorio deben confirmarse en diferentes tipos de suelo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Soil compaction]]></kwd>
<kwd lng="en"><![CDATA[Resistivity]]></kwd>
<kwd lng="en"><![CDATA[Geotechnical properties]]></kwd>
<kwd lng="es"><![CDATA[compactación del suelo]]></kwd>
<kwd lng="es"><![CDATA[resistividad]]></kwd>
<kwd lng="es"><![CDATA[propiedades geotécnicas]]></kwd>
</kwd-group>
</article-meta>
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