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