Article
September 20, 2025
High RAP content is not just 'changing a number'; it needs systematic stockpile management and mix-design control. Here is a practical route.
Start with a RAP library
Classify and test sources by aging degree, asphalt content and aggregate gradation, and store separately - the foundation of stable high incorporation.
Stiffness and blending charts
Blend the aged binder with virgin asphalt based on aging indices, draw the blending curve, and determine the maximum RAP ratio that meets target performance.
Workability at medium temperature
A warm-mix rejuvenator maintains workability in the medium-temperature range, so high-RAP mixes still mix, haul and compact smoothly.
Acceptance and QA
Close the loop with extraction, recovery and performance tests, building full-process quality control from intake to pavement.
Need a mix-design review for high RAP?
Send your RAP data and target grade; we will suggest a path to 60%+. See the product page or contact us.
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