Environmental Assessment of Concretes Containing Construction and Demolition Waste

Abstract:

The recycling of construction and demolition waste (CDW) is currently of growing interest. Starting from such waste products it’s possible to produce recycled aggregates for construction purposes providing environmental and economic advantages. Life-cycle assessment (LCA) is a valuable tool to evaluate the environmental impact at end of life of CDW and improve the employment of recycled aggregates in concrete. In this research a life cycle evaluation of concrete mixtures made with CDW is performed to assess their environmental impacts considering various scenarios related to recycling sites with different conveying distances. The advantages of replacing natural aggregates with recycled ones are evaluated using a combination of LCA model and Life-Cycle Impact Assessment to estimate the environmental effects for all the considered scenarios. The results highlighted the highest environmental impact for the scenario with total landfill as well as an increasing impact for increasing distance from the demolition site.

• Periodical: Key Engineering Materials (Volume 913)
• Pages: 131-135
• DOI: https://doi.org/10.4028/p-5bebj7
• Online since: March 2022
• Authors: Ivan Moccia*, Ilenia Farina, Cinzia Salzano, Marco Ruggiero, Antonella Petrillo, Francesco Colangelo, Raffaele Cioffi
• Keywords: Construction, Demolition Waste, Life Cycle Assessment, Recycled Aggregates

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