Minimising concrete wastage in Sri Lanka using lean construction techniques

Abstract

Concrete is a major component of construction waste. The amount of concrete wasted in Sri Lanka is significant compared to the amounts wasted in other countries. Traditional strategies adapted to minimise concrete wastage have not been successful. Although lean construction can eliminate waste, there is very little research that has been done on this subject. The aim of the study was therefore to identify the suitability of lean techniques in minimising concrete waste generated during pre and post contract stages of construction in Sri Lanka. Qualitative research methods were used to achieve this aim. A literature review and a set of structured interviews with fifteen experts working in the construction industry were used to collect the required data. The data collected were analysed using content analysis. Total quality management, just in time, process re-engineering, value-based management and total productive management were identified as the lean techniques that can be used to minimise the waste of concrete in the construction industry in Sri Lanka during pre and post contract stages of construction.