Geotechnical and Construction Materials Engineering, specifically, the following fields:  durability of plain and blended cements in sulfate and/or chloride environments.  Characterization and stabilization of indigenous soils, particularly the sabkha.  Protection of reinforced concrete structures using mineral admixtures, such as silica fume, fly ash, natural pozzolans, etc., coatings, corrosion inhibitors and epoxy-coated and fiber-reinforced rebars.  Effect of indigenous aggregates on concrete durability.  Assessment and durability of repair materials.  Hot-weather concreting.  Non-destructive testing of concrete. Usage of Industrial by-Products in Concrete.