Asphalt is a visco-elastic material having properties of elastic solid at low temperature and viscous liquid at high temperature. Properties of asphalt binder depend upon temperature, rate of loading and aging conditions. Although asphalt binder is only 4-5 % of asphalt concrete mix by weight but it plays a vital role in defining the pavement performance. That is, pavement response is heavily d...

Reclaimed asphalt pavement (RAP) has been widely used in pavement. However, the fatigue performance of hot-mix (HMA) with RAP is a critical factor to ensure durability. In this study, tests using an Overlay Tester (OT) were conducted novel load-controlled mode. contents 0, 25% and 50%, respectively. cyclic loading, life energy parameters measured. Results indicated that decreased both fracture ...

This study examines the effectiveness of HMA overlay design strategies for the purpose of controlling the development of reflective cracking. A parametric study was conducted using a 3D Finite Element (FE) model of a rigid pavement section including Linear Viscoelastic (LVE) material properties for the Hot Mix Asphalt (HMA) overlay and non-uniform tire-pavement contact stresses. Several asphalt...

Recycling of asphalt concrete is increasingly used as a major rehabilitation method in Japan because it can conserve natural resources, reduce costs and save energy. In this study, reclaimed asphalt concrete from Tokyo International Airport was evaluated for use in four types of base materials: recycled granular material, recycled cement stabilized material, recycled cement-emulsified asphalt s...

When using a high content of reclaimed asphalt pavement (RAP) in production, the RAP properties play primary role defining performance new mixture. The depend not only on composition old but also milling process. Here we performed full-scale experiment at four jobsites. At each them, three machine parameters were varied (moving speed, depth, and drum rotational speed), while everything else rem...