keynote address - Australian Asphalt Pavement Association
keynote address - Australian Asphalt Pavement Association
keynote address - Australian Asphalt Pavement Association
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Current SuperpaveGuidelines for RAP• Tier 1: Up to 15% RAP– use specified binder grade• Tier 2: 15%‐25% RAP– use one full binder grade lower, e.g., PG58‐28 instead of PG 64‐22• Tier 3: Over 25% RAP– use blending charts to determinerequired binder grade
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