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Year : 2020  |  Volume : 5  |  Issue : 2  |  Page : 68-73

Comparison of clay soils of different colors existing under the same conditions in a location

1 Department of Physics, Akwa Ibom State University, Mkpat Enin, Akwa Ibom State, Nigeria
2 Department of Physics, University of Uyo, Uyo, Nigeria
3 Department of Physics, Michael Okpara University of Agriculture, Umudike, Nigeria

Correspondence Address:
Dr. Okechukwu Ebuka Agbasi
Department of Physics, Michael Okpara University of Agriculture, Umudike
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ijas.ijas_35_19

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Background: The choice of a suitable soil for an intended application depends, basically on one's thorough knowledge of soil properties. Soil color and thermal properties have been found to vary from place to place. However, there is no scientific information on the properties of a soil type formed with different colors in a location and exposed to the same influence for a reasonable interval of time. Consequently, this leaves room for a great deal of speculation and assumption. Aims and Objectives: This work was aimed at examining and comparing some vital properties of two soil samples of the same soil type formed in a place of a particular relief but are observed to be completely distinct in their colors. In addition, a model for prediction of temperature variation with the thickness of each sample was considered. Materials and Methods: Pink clay and yellow clay got from a location were used to prepare six test samples each. The samples were allowed to dry completely under ambient conditions before they were subjected to laboratory- based tests. Results: The results of each test differed for two clay samples. Apart from values of solar radiation absorptivity and flaking concentration, the mean values of sorptivity, bulk density, specific heat capacity, thermal conductivity and thermal diffusivity were found to be greater for pink clay soil compared to yellow clay soil. Conclusion: Clay soils of different colors can differ in their other properties even if they exist under same conditions in a particular location. During the time of minimum temperature or the hottest time of the day, pink clay would record a lower temperature than yellow clay.

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