Abstract
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.
Highlights
Bitumen is an engineering material and is produced to meets variety of specifications based upon physical properties, it is the residual product from distillation of crude oil.Eurobitume, A
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 the Ductility decreases with increase in temperature by 54.9% between 25 ̊C and 43.2 ̊C
Since the main aim of this research is to see the influence of climate parameters on the rheological properties of bitumen, the first step is to obtain climate data over a period of time and to analyse them to see whether climate has a bearing on bitumen
Summary
Bitumen is an engineering material and is produced to meets variety of specifications based upon physical properties, it is the residual product from distillation of crude oil.Eurobitume, A. Bitumen has been widely used in Nigeria for the construction of flexible pavements for more than a century. Flexible pavements with bituminous surfacing are widely used all over the world. It has been well known and used since 6000 BC as a waterproofing and binder material of great quality. The Sumerians used it in the prosperous shipbuilding industry, whereas the Babylonians used it as a binder in the mixture production for castle construction (Babel Tower) [2]. Around 3000 BC, the Persians used bitumen for road construction
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