Projects Management and the effect of Rework on Construction Works: A Case of selected Projects in Abuja Metropolis, Nigeria

Abstract

Rework in construction projects is an unwanted or undesirable menace which
has more negative effect than positive. The negative effects include delays in
works schedule, wastages, use of extra money which means reduction in profit margin to the contractor and a higher project cost. It is caused majorly by poor project planning and supervision, poor contractual arrangement, omissions, design/user change orders, defects and errors during construction, alterations to initial design and use of poor/inferior materials. This work adopts an inductive, qualitative method where two projects which were supervised by the authors who kept a record of rework activities from setting out of the projects to completion and hand over. Pictures of the completed projects were also taken. The result was presented and analysed using tables and simple percentage. Findings showed that rework in project one cause a total of 43 extra days which is 38% schedule over run an N3,341,805.00 (three million, three hundred and forty one thousand,
eight hundred and five Naira only) which is 12.85% additional cost for the
project to be completed. Project two also had 14 extra days used for rework
activity which is 16.7% schedule over run. Based on the foregoing, the study
recommends that rework can be reduced greatly if effective project planning and supervision is carried out and a deliberate implementation and enforcement of quality assurance put in place.