Director-General, Nigerian Building and Road Research Institute (NBRRI), Prof. Samson Duna, says NBRRI has come up with a cement technology, Pozzolana, that will drastically...
Introduction
Natural bitumen, a dense, viscous, semi-solid form of petroleum composed of aliphatic and aromatic hydrocarbons, asphaltenes, resins, sulphur compounds,...
The International Institute of Tropical Agriculture (IITA) has been officially designated a Wetland of International Importance under the Ramsar Convention,...
