Özet:

Being one of the primary contributors to global GHG emissions, the construction industry has been the focus of many recent studies. The process of manufacturing and transporting of building materials, and installing and constructing of buildings consumes great energy and emits a large quantity of greenhouse gas. The concern for GHG emissions in building construction in Bangladesh is not satisfactory. This study identifies the sources of GHG emissions during building construction phase and estimates the GHG emissions from those sources for a case building in Bangladesh, following the process-based methodology. The results for the case building show that about 98.38% of total emissions are due to the manufacture and transportation of building materials, 1.31% is due to energy consumption during the construction period and only 0.31% are due to waste disposals, while concrete and brick-works are the most contributing materials to the GHG emissions, about 35.22% and 48.67% respectively. This study also proposes a set of strategies, for example, using recycled building materials, especially recycled steel, as well as, transporting building materials by sea, re-using wooden waste materials and using hardwood plywood in place of non-load bearing brick walls that can help to reduce GHG emissions.

Anahtar Kelimeler: