FAA and military pavement experts project that as much as 90% of airfield asphalt pavement deterioration can be attributed to surface oxidation. Early application and timely reapplications (about every five years) of approved GSB materials can mitigate surface oxidation as a contributing factor in airfield asphalt deterioration.
In addition, the necessity of early intervention of asphalt pavement preservation is emphasized by The Foundation For Pavement Preservation:
As much as 60 percent of the life of asphalt pavement is lost in the first two years through oxidation.”
This concept of significant pavement deterioration in the first years of pavement life from surface oxidation is noted in the graph above by the accelerated initial drop in the anticipated standard life cycle. By applying GSB preservation products in the initial life of the pavement (even as part of the construction process), and making timely reapplications (about every 5 years), a pavement’s useful life can be cost-effectively extended to a significant degree. As with wooden structures, the deterioration of asphalt stems from the loss of critical oils and resins. We have known for a long time about the benefit of preserving the oils and resin in our wooden structures with stains and other preservatives. They protect against the detrimental effects of surface oxidation (e.g., rapid aging and cracking). A similar deterioration process occurs with the loss of oils and resins critical to extending asphalt pavement life. If as much as 90% of airfield asphalt deterioration is attributed to surface oxidation, and as much as 60% of the life of the pavement can be lost to oxidation in the first two years, it is essential that cost-effective interventions – such as the application of proven GSB preservation products – are made early and often to mitigate surface oxidization. The graph above portrays those potential benefits and life extensions.