Speaker
Description
Abstract. This study explores the industrial-scale production and applica-tion of asphalt mixtures incorporating high rates of recycled concrete aggre-gates (RCA), steel slag aggregates (SSA), and reclaimed asphalt (RA). With a dedicated focus on sustainability within road construction, the investiga-tion scrutinizes two specific asphalt mixtures through a comprehensive field trial section. The findings reveal strict adherence to nationally speci-fied standards, and the water sensitivity tests demonstrate excellent per-formance. The structural evaluations of the pavement trial, utilizing both Light Weight Deflectometer (LWD) and Falling Weight Deflectometer (FWD), demonstrate a commendable load-bearing capacity. However, sur-face characterization tests reveal a lack of skid resistance, a problem ex-pected to be solved after the bitumen surface film has worn off with in-creased traffic volume. This research underscores the critical importance of an exhaustive evaluation of pavement trials with new materials, providing concrete evidence for their practical application and supporting the ongoing paradigm shift towards sustainable practices in road construction.
