Generally, asphalt binder experiences short-term aging during mixing and constructing processes in high temperature environments and long-term aging during the service life after opening the road. Binder aging inside asphalt mixtures incurs changes in strength of asphalt paved roads, which then changes physical properties of the mixture such as cracks and rutting resistance. This study aims to measure bond strength of aging asphalt binder using asphalt bond strength (ABS) test that can measure a bonding force of asphalt binder and aggregate surface using Pneumatic Adhesion Tensile Testing Instrument (PATTI) used previously in the paint industry as a testing method specified in AASHTO TP-91.

• Youngnam Han(KOREA INSTITUTE of CIVIL ENGINEERING and BUILDING TECHNOLOGY Ilsan, KOREA)
• Jeongtan Son(KOREA INSTITUTE of CIVIL ENGINEERING and BUILDING TECHNOLOGY Ilsan, KOREA)