The present work investigated the properties of the
commonly used Butimen for road construction
in Nigeria (60/70 pen.) for normal temperature and climate Effect. The
laboratory tests conducted were penetration, softening point, viscosity,
ductility test and flash and fire point
test based on the ASTM standards. The result indicates a decrease in stiffness
of bitumen with an increase in
temperature, with a decrease in
penetration of bitumen by 85.5% when tested between 25°C to 43.2°C and also the
Ductility decreases with increase in temperature by 54.9% between 25°C and
43.2°C. The viscosity result shows a decrease in viscosity with an increase in temperature, therefore at higher temperature Bitumen is likely to flow.
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