Issues‎ > ‎Vol.7 No.1‎ > ‎


Identifying Wastages of Construction Materials in Residential Building

 Noori Sadeq Ali1    Bnar Naaman Hamadameen 

Cihan University / Erbil, College of Engineering, Civil Engineering Department

University of Salahaddin / Erbil, College of Engineering, Civil Engineering Department

Received: 17/01/2019,  Accepted: 2/12/2019 ,  Published: 4/2020



Wastage of construction materials can estimated by the difference between the value of materials delivered and accepted on-site and those used adequately as identified and accurately computed in work. The elements of construction wastage are wastage due to labor, material and machine. This research was organized to determine the percentage of wastage from construction materials and the main factors which cause wastage in residential  houses in Erbil. The questionnaire form was designed and sent to foremen, masons, supervisor- engineers at construction sites as respondents who have at least ten years experience in the construction of  houses. Data analyzed by the statistical package SPSS program (version 22). The findings showed that the maximum percentage of wastage were in the sand, gypsum, wall tiles and floor tiles with relative  average percentage of  13.7 ,12.08, 12.03 and 9.10 respectively. Also the minimum percentage of construction material isfalse ceiling and paints with relative average percentages of  4.70 and 4.67 respectively. The most effective causes of wastages are due to cutting uneconomical shapes, ordering additional amount more than required, damages  from transportation,storage, and  handling.


Wastage, construction wastage, waste reduction, building material, construction materials, residential houses.


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