| Popis: |
The Architecture, Engineering and Construction (AEC) industry consume 40% of raw material generating 35% of industrial waste worldwide. In the EU, it consumes 50% of raw material and generates 35% of industrial waste; while in the USA, 22% of 600 million tons of Construction and Demolition Waste (CDW) were recycled into new products: 52% as aggregates but 24% ended in landfills, in 2020. A transition to a circular economy may trigger post-COVID-19 economic recovery. Thus, the EU promotes it through the EU Green Deal, Renovation Wave and Circular Economy Action Plan. This work applies the Spanish CDW “weighted transfer of measurement” current model to broaden its construction material database and to add environmental indicators. Latin America has the world's highest urbanization rate (84%) but lacks effective CDW management to thrive in Regenerative Sustainability, Climate Change mitigation and post-pandemic economic recovery. This research quantifies onsite 61 Mexican social housing CDW, comparing both countries’ results. Mexico consumes 1.24 ton m−2 of raw materials and produces 0.083 ton m−2 CDW with a 16% recycling rate, while Spain consumes 1.90 ton m−2 and produces 0.08 ton m−2 with a 75% recycling rate. Cement-based, ceramic and mixed CDW represent 83.44% for Mexico and 95.61% for Spain. The implementation of this methodology will deliver sustainable CDW management in Mexico, minimizing CDW production, by the replacement of current construction materials for eco-efficient ones and the promotion of related legislation. Moreover, this updated transformation coefficient database widens the Spanish model to an international scale. |
