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Ihom, A.P., Allen, M.A., Nwonye, I.E., Ilochionwu, C. and Ogbodo, N.J. (2014) Investigation of the Accuracy of Non- linear Model in the Study of Green Permeability of Green Sand Moulds. African Journal of Engineering Research, 2, 14-20.

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• TITLE: Regression Analysis of Ashaka Clay-Bonded Sand

  AUTHORS: Aondona-Paul Ihom, Aniekan Offiong

  KEYWORDS: Regression, Dry Shear Strength, Dry Compression Strength, Clay-Bonded Sand, Ashaka

  JOURNAL NAME: Journal of Minerals and Materials Characterization and Engineering, Vol.2 No.5, September 25, 2014

  ABSTRACT: Regression Analysis of Ashaka Clay-Bonded Sand has been successfully carried out. The study data were generated at the National Metallurgical Development Centre, Jos Sand Testing Laboratory. The result of the regression analysis showed that both dry compression strength and dry shear strength have a very strong relationship with clay content and moisture content. The correlation coefficient, coefficient of determination and the coefficient of multiple determination in each relationship was very high. The coefficient of multiple determination for the relationship between dry compression strength, clay content and moisture content was 0.91, while that of dry shear strength, clay and moisture content was 0.97. Two mathematical models have been developed for the estimation of dry compression strength and dry shear strength on the shop floor.