Sustainable management of construction and demolition waste in Bangladesh to promote resource recycling

This study conducted during the fiscal year of 2022-2023 endeavors to offer waste generation rates (WGR) for different Construction and Demolition Waste (CDW) materials and analyze the financial and environmental benefits of CDW recycling at a national level. Findings from the study reveal that CDW in Bangladesh mainly consists of concrete (56%), brick (15%), mortar (9%), metal (6%), and ceramics (6%). Additionally, the collective CDW produced in six major cities studied totals 3.71 million tons (MT). The WGR of CDW is assessed through regression analysis. The mean WGR for Construction and Demolition activities in the fiscal year 2022-2023 are notably recorded at 64.68 kg/m2 and 1626.97 kg/m2, correspondingly for the 12 city corporations. The study highlights the potential for entrepreneurial initiatives in recycling materials like concrete, brick, mortar, metal, ceramics, and timber, leading to reduced CO2 emissions and energy consumption. The estimated economic value of recycling concrete, brick, and metals in major cities is approximately 104.5 million USD and 0.45 MT of CO2 reduction from recycling brick and metals from major cities.