Effects of asphalt binder modifying with nano hydrated lime on moisture susceptibility of asphalt mixtures with thermodynamically concepts. (16th February 2020)

• Record Type: Journal Article
• Authors: Behbahani, Hamid; Hamedi, Gholam Hossein; Moghaddam Gilani, Vahid Najafi
• Is Part Of: Petroleum science and technology. Volume 38:Number 4(2020)
• Page Start: 297
• Page End: 302
• Publication Date: 2020-02-16
• Subjects: asphalt binder modifier -- indirect tensile strength -- moisture susceptibility -- nano hydrated lime -- surface free energy; Liquid fuels -- Periodicals; Petroleum -- Periodicals; 665.505
• DOI: 10.1080/10916466.2019.1702685
• Languages: English
• ISSNs: 1091-6466

Abstract

Abstract: This study aims to investigate the effect of using Nano Hydrated Lime (NHL) as asphalt binder modifier on the moisture sensitivity of Hot Mix Asphalt (HMA) with consideration of its impact mechanism on bituminous-aggregate adhesion. In order to investigate the moisture susceptibility, the indirect tensile strength (ITS) test and the concepts of surface free energy (SFE) have been applied. To simulate environmental conditions, samples of HMA have been exposed to 1, 3 and 5 freeze-thaw cycles. The results show that the use of NHL increases the ITS values and the indirect tensile strength ratio (TSR) in both types of aggregates.