A rigid pavement is a road surface overlaid with reinforced concrete, while a flexible or asphalt one has a bituminous (tar) overlay. Asphalt roads are the most common type of paved roads in ...
These components are used to produce different types of asphalt, such as dense asphaltic concrete (AC), stone mastic asphalt (SMA ... can be used to extend the service life of a road surface. We ...
Minister of Works, Engr Dave Umahi, has said the decision to switch from using asphalt for the construction of the Abuja-Kaduna-Zaria-Kano Road to using concrete will save the Federal Government ...