Correlation between Blast Efficiency and Uniaxial Compressive Strength

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Author(s) M. A. Saliu | A. F. Akindoyeni | I. A. Okewale
Pages 799-805
Volume 3
Issue 8
Date August, 2013
Keywords Blast efficiency, explosives, uniaxial compressive strength, correlation, calcite, dolomite, granite.

Abstract

The study investigates the correlation between blast efficiency of explosives and uniaxial compressive strength of some selected rock types. To achieve the set objectives, granite samples were collected from Julius Dinga Ltd Iyuku, calcitic marble samples from Geoworks Ltd Igarra and dolomitic marble samples from Freedom quarry Ikpeshi all in Akoko-Edo in Edo state of Nigeria. These samples were collected for uniaxial compressive strength test. The result of uniaxial compressive strength reveals that granite has 133.55MPa, calcite has 78.91MPa and dolomite has 71.17MPa. From the correlation of measured variables, it was observed that there is a good correlation between blast efficiency and uniaxial compressive strength. It was observed that blasting efficiency increases with decrease in uniaxial compressive strength.

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