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EFFECT OF CLAY PERCENTAGE AND TYPE OF CLAY MINERALS ON SOME MECHANICAL PROPERTIES OF LOWER KANAN PROJECT SOIL* | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 36, Issue 6, 2005, Pages 1-6 | ||
| Authors | ||
| A. A. T. Saleh; M. B. Allous; A. K. Salim | ||
| Abstract | ||
| The study was conducted on soil from lower - Kanan project to investigate the effect of clay percentage and typed clay minerals on some mechanical properties of soil. The study dealed with collecting distributed and undistributed soil samples to examine percentage of clay , type of minerals , bulk density , porosity , hydraulic conductivity and shering strength of soil. Also moisture content under different tension was measured .The results showed that clay content in soil was 48% and clay plus silt were 92% . Wide ranges of clay minerals were obtained . The clay minerals were 38% Semictrite , mixture of illite and pallygroscite were 23% , and chlorite 13% and kaolinite 3%.These characterization of clay and clay minerals with 32% of CaC03 result in compacted soil with variable bulk density, porosity, moisture content and low hydraulic conductivity and high shering strength The soil contained a hardpan layer was suitable for irrigation and drainage vacillates. Such soil was not suitable for cultivation under these condition because of the poor root penetration, low water movement and low oxygen diffusion. | ||
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