Geotechnical properties of municipal solid wastes and landfill liner interfaces.

 Performance of alternate landfill covers in arid environments

 Seismic risk analysis and regulations for seismic design of structures in Lebanon.

 FEM of Soil-Structure interaction problems.

 Hard Soil / Soft Rock strength parameters. Emphasis on marls and weathered limestones.

 Geographic Information Systems (GIS) and their use as decision-aid tools for preliminary site selection for major engineering structures such as dams, highways and landfills.

 Electro-kinetics, and fundamental aspects of the electrical properties of clays.

 Solidification/Stabilization of loose heterogeneous fills and/or waste materials.