Pavement Performance of Foaming Warm Mix Asphalt with RAP

Abstract:

Foam-based WMA are the most commonly used techniques. Gansu Department of Transportation recently let its first foaming warm mix asphalt in RAP project in response to need to evaluate the foaming warm mix asphalt technology in RAP and how it correlates with material specific to Gansu Province. Three foaming warm mixtures with RAP were designed. Based on this, Marshall volume indicators and pavement performance were tested and contrasted for three foaming warm mixtures with RAP and corresponding HMA. Foaming warm mixtures with RAP were produced at 130°C-140°C which is lower 10°C-20°C. The result show that 15% to 30% RAP can be added into foaming warm mixtures. Foaming warm mix asphalt technology can reduce 20°C of compaction temperatures compared with HMA. And its pavement performance can meet regulatory requirements.

• Periodical: Applied Mechanics and Materials (Volumes 584-586)
• Pages: 1066-1070
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.584-586.1066
• Online since: July 2014
• Authors: Liang Ying Li*, Xiao Long Yang, Gui Cao
• Keywords: Foaming Warm Mixtures, Pavement Performance, RAP, Road Engineering, Wma

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