Mairepav10

A Life Cycle Assessment of an Asphalt Mixture with Steel Slag and Reclaimed Asphalt

25 Jul 2024, 16:30

15m

Room B

Session 6.B: LCA/LCCA + Warm mix asphalt (Chair: Kim Jenkins)

Speaker

Caroline F. N. Moura (ISISE - Institute for Sustainability and Innovation in Structural Engineering, Department of Civil Engineering, University of Minho, 4800-058 Guimaraes, Portugal)

Description

Abstract. In the context of sustainable road construction, this study con-ducts a Life Cycle Assessment (LCA) to evaluate the environmental impact of an innovative asphalt mixture incorporating Steel Slag Aggregate (SSA) and Reclaimed Asphalt (RA), with a specific focus on the production phase. The research compares this innovative mixture with a conventional one uti-lizing Natural Aggregate (NA) and emphasizes the efficient utilization of re-cycled materials in the pavement industry. The findings indicate that the innovative mixture demonstrates substantial advantages, such as a 23% re-duction in Global Warming Potential (GWP) and 58% less Water Depriva-tion Potential (WDP), highlighting its environmental and sustainable road construction benefits.