THE PROBLEM: Deteriorated Pavements
When pavements reach the end of their useful performance life, preservation strategies become incrementally less effective. The life-cycle failure of a pavement occurs when oxidation of the asphalt binder causes rigidity of the wearing surface, while moisture saturation and traffic loading reduce the structural integrity of the unbound aggregate and soil support structure.
Traditional methods of repair are expensive and often ineffective. The old process usually involves overlaying worn areas or off-hauling the old pavement and filling landfills with what is actually a valuable and reusable asset.
Most pavement problems are found beneath the surface. Base and sub-grade layers account for the majority of the problems seen in distressed pavements. This support system fails because the construction materials are not able to hold their shape or maintain stability over time.
THE SOLUTION: Recycle, Stabilize and Save With Full Depth Rehabilitation
There is a solution to deteriorated pavements! A perpetual pavement foundation can be achieved by the in-place recycling of the existing pavement materials and stabilizing them with cement. This process, known as Full Depth Rehabilitation (FDR), provides significant cost savings, a sustainable allocation of resources, and the structural enhancement required for long-term performance. Cement stabilized bases have provided economical and long lasting pavement foundations for more than 70 years.
With FDR there is no need to off-haul old materials for disposal, or haul in new aggregate. The local impact of rebuilding roads is greatly reduced when using FDR, due to a decrease in truck traffic and shorter construction schedule. Pavement stakeholders now realize that FDR is THE solution to rebuilding roads, especially with today's economic and environmental challenges.