S. N. Chigeru* , C. Nwaobakata** and D.B. Eme**
*Department of Chemical/Petrochemical Engineering
Rivers State University of Science and Technology
Nkpolu, Oroworukwo, P.M.B. 5080, Port Harcourt, Nigeria
**Department of Civil and Environmental Engineering
University of Port Harcourt, Choba, P.M.B 5323,
Port Harcourt, Nigeria.
Models based on curve fitting by least square method, are presented for predicting the
penetration of penetration grade bitumen blended with kerosene, diesel and lubricating oil, up
to 10% by volume of each diluents per 100ml of pure bitumen, and the predictions of the model
compare reasonably well with experimental data. The models presented may be limited to
bitumen with penetration grade of 40-50 grade used in the experiments and the range of
volume of diluents considered in the analysis.
Keywords: Bitumen, Penetration, Kerosene, Diesel, Lubricating Oil, Correlation Model.