Laboratory Determination of the Thermal conductivity of a Typical Nigerian Granite Rock

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Date
2012
Authors
Ozebo, V.C.
Odusote, O.O
Sulaimon, O.O
Journal Title
Journal ISSN
Volume Title
Publisher
Akamai University, U.S.A
Abstract
This paper investigates the thermal conductivity of granite in view of its availability and usage in building and construction. The thermal conductivities of discs made from cement bonded granite chippings were determined. The discs had the same diameter but with varied thickness and were also compressed under different pressures. The values of the thermal conductivity were between 0.18 and 0.43 Wm-1 K-1 . It shows that granite is a poor conductor of heat and a correlation coefficient of 0.78 exists between the compression pressure and the thermal conductivity. This indicates that porous granite of low density will be a suitable thermal insulator when used as aggregates in walls and roof tiles
Description
Keywords
thermal conductivity, pressure, granite, Lee’s disc
Citation
Ozebo, V.C., O.O. Odusote and O.O. Sulaimon (2012): Laboratory Determination of the Thermal conductivity of a Typical Nigerian Granite Rock. Pacific Journal of Science and technology. 13(2) 119 – 122