Summary: The primary objective of this study is to evaluate the feasibility of asphalt-rubber concrete in road construction with particular emphasis on characterization of performance-related properties of asphalt-rubber concrete and development of pertinent guidelines for design purpose. Specially, the objectives are to: • Evaluate the extent and rate of swelling of rubber tire due to chemical reaction between asphalt cement and rubber. • Characterize rheological properties of asphalt-rubber including viscosity, low temperature creep stiffness, and aging. • Evaluate and establish optimum mixture design for asphalt-rubber concrete, including both wet and dry process. • Characterize pertinent time-dependent mechanical properties of potential mixes of asphalt-rubber concrete, including resilient modulus, fatigue, creep and permanent deformation. • Predict the performance of the selected asphalt-rubber concrete pavement under various traffic and weather conditions using computer program KENLAYER. • Perform cost-effectiveness comparisons between asphalt-rubber concrete and conventional hot mix asphalt concrete to determine if these materials should considered as economic alternative in future applications. • Develop mixture design procedures and design guidelines for the use of these materials in the field. • Develop field performance evaluation plan for future study.