Quality Control and Quality Assurance Practices in Selected Finishing Works: The case of Public Building Construction Projects in Addis Ababa.
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Date
2020-06
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Addis Ababa University
Abstract
Construction industry is a major player in economy of any country by generating employment, and
wealth to the nations. The Industry also provides infrastructure which is vital for economic growth
and provision of service. However, many projects in developing countries experience extremely low
performance and face challenge in meeting quality requirements. One of the contributing factors to
lower quality among others is poor quality control and quality assurance system.
The objectives of this independent project are to identify the causes of poor quality in plastering, floor
and wall finishing works in building projects and to assess the actual practice of quality control and
quality assurance in these works; finally to provide mechanism to prevent or to minimize poor quality
by applying good quality control and quality assurance system. The methodologies used for this
project are literature review, interview and investigating different cases by site visiting and desk study.
Unclear preparation of specifications for materials, poor workmanship and also poor supervision are
observed to be highest causes of poor quality of building construction. The irresponsibility of
residence engineers and site supervisors lead the project not to be completed as per the schedule,
budget and quality. From different research and documentation in most building construction less
quality work occurred due to poor quality control and quality assurance system. Some of the finishing
works where major quality underperformance is exhibited is in floor and wall finishing works. In the
implementation of any projects either public or private, clients need their project to fulfill at least the
three common elements, i.e. cost, time and quality requirements. Any deviations from the expected
quality result dispute between the contractor and client and also additional cost will be incurred. By
identifying public building projects in Addis Ababa and investigating the causes of poor quality in
plastering, flooring, wall finishing and malpractice; through good quality control and quality
assurance system; the way how to prevent or minimize defects, less standard products and also
mechanizing to avoid malpractice will be presented in this independent project .
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Keywords
Finishing Work, Quality, Quality Control, Quality Assurance