Abstract: In recent treads a wide range of building materials is available for the construction of civil engineering structures. The total cost of materials may be up to 60% or more of the total cost incurred in construction project dependent upon the type of project. Effective construction materials management is a key to success for a construction project. Construction waste is another serious problem in construction industry. A large and various types of construction waste with different characteristics are created at all the stages of construction Delays have been frequently reported as the cause of several conflicts that affect the different parties involved in construction projects. Project Time Management (PTM) includes a number of planning and controlling processes that are recommended for complying with requirements related to project time. The performance of the construction industry and its contribution to the welfare of society incomparison to other industries such as the manufacturing industry has lately been the focus of many commissioned reports and academic research publications. The so-called ―iron triangle‖ of time, co stand quality have been the most important metrics of construction project performance, especially for the selection of appropriate procurement methods. The perceived inefficiencies emanate from, among other things, increasing construction costs, conflicts and client dissatisfaction, the fragmented nature of the industry, low competition, cost overruns and delays, and lack of quality improvement. There is observed disparity in increase in housing construction costs and an apparent lack of quality improvement of infrastructure transport projects. Surveys and interviews were used as a means to collect data concerning both supplier, structure in relation to housing construction costs and quality of construction projects. Other empirical data from a secondary source were also used.
Keywords: CM, CPM, PTM, RFI.
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