ABSTRACT
Dr. Heba H Bahnasawy is a Researcher at Strength of Materials Research and Quality Control Division, General Organization for Housing, Building and Planning Research Cairo, Egypt. She has participated in evaluation and optimum utilization of building materials, load bearing masonry and quality control. Dr. Fatma E El-Refai is a Professor, Strength of Materials Research and Quality Control Division, General Organization for Housing, Building and Planning Research Cairo, Egypt. She is actively engaged in quality control and quality assurance, inspection of existing building and formulation of Codes of practice and Specifications.
