Application of Lean Techniques and BIM in Building Deconstruction

Lean principles and Building Information Modelling (BIM) technology is working remarkably in the construction of a building. Lean promotes waste reduction, transparency, collaboration and adds value to the industry. On the other hand, BIM facilitates a platform for sustainable construction from commencement to completion. However, the existing building is not able to match the pace of the current trend. Therefore, the demolition and deconstruction industries are also growing. Although, demolition pushes more waste generation whereas deconstruction encourages the reuse and recycling of rescued materials. As demolition is not the solution when there is scarce of resources already at the same time not eco-friendly at all. Deconstruction emerges as a new solution for both issues. This research draws attention to the interaction of Lean and BIM to get optimum benefit from a deconstruction of existing buildings which has completed their life. This study also investigates the role of Lean-BIM interaction in the financial perspective of deconstruction. In order to explore synergies between Lean and BIM, academic and industry-based research works are reviewed. Subsequently, interviews and questionnaires are conducted to get a pragmatic overview. Circular economy and Lean-BIM techniques are also studied to understand the economic perspective of deconstruction and dismantling the market. Integration of Lean-BIM is studied for deconstruction processes and its economical potential. The result of the thesis is that several interactions between Lean and BIM can provide a methodology to execute deconstruction which has a favorable economic potential. However, at present deconstruction is financially not cost-effective. Thus, the first deconstruction and later integrated form of Lean and BIM are less explored, and they are still in nascent form in the architectural, engineering, and construction (AEC) industry. This research paper aims to contribute a distinct approach for improvement in the deconstruction process and circular economy