Research and Applications of New Pavement Structure Based on Large StonePorous Asphalt Mixture

摘要

This paper analyzes the main reasons of premature failures of an asphalt pavement with bound base andrnthe use of Large Stone Porous Asphalt Mixture (LSPM) to prevent such failures. A systematic evaluationrnof the LSPM is presented covering rutting resistance, moisture susceptibility, permeability, reflectionrncracking and fatigue resistance. Based on this evaluation, a new pavement structure was adopted thatrnincludes LSPM. The oldest of these sections has been in use for five years and this paper reviews the fieldrnperformance.