IMPLEMENTATION OF SIX SIGMA METHODOLOGY IN CONSTRUCTION FOR PROCESS IMPROVEMENT

Achieving specified levels of quality in the construction industry has always been a problem. A successful construction project is expected to create a balance between cost, time and quality. Also, there is a huge scope to reduce the costs associated with the wastage of resources and rework during the execution of construction projects. To obtain quality construction, it is necessary to focus on process improvement. Construction industry is looking to other industries such as manufacturing to examine the effectiveness of measuring and monitoring tools. Six Sigma is one of them. Six Sigma is a statistics-based process improvement technique. This paper includes a case study of a residential building where Six Sigma approach is used for measuring and improving the process of blockwork on site. The purpose of this study is to minimize the wastage, rework, defects and obtain a quality process using Six Sigma methodology. During the implementation of Six Sigma, considerable improvements were observed in the ongoing process on site. And the same can be implemented on other processes involved in the construction of the entire building in order to improve the construction process as a whole.