الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In Egypt, construction and demolition projects produce a large amount of waste that reaches
40-50 million tons per year. Most construction wastes are landfilled or illegally dumped,
causing land and water contamination. Construction waste can greatly affect construction
project performance, as it affects the construction costs, time, productivity, and sustainability.
In this research, the key influencing factors for waste management were investigated using a
survey of construction practitioners in Egypt, so the waste can be controlled and reduced
effectively. The study suggests that selecting contractors with the best experience in
construction works and the usage of proper materials storage facilities can significantly
reduce waste generation. Proper layout planning of construction activities, using materials
before expiry dates, and early communication on design changes between all contract parties
are also found to be among the key factors for waste minimization. An expert system model is
designed to support construction teams to improve the performance of construction and demolition waste reduction in :construction sites. Keywords Construction and Demolition Waste; Waste Management Practices; Waste Causes, Expert System; Backward Chaining