Performance-based mixture tests were used to design 100% recycled mixtures while verifying the potential to use the test methods for routine design of highly recycled asphalt mixtures. Two different gradations of recycled mixtures were prepared, each with two different binder contents and a polymer modified bitumen for one of the mixtures. A bio-based rejuvenator was always applied to ensure the targeted binder grade. The results demonstrated that it is possible to design a 100% mixture with rutting resistance, fracture toughness, and stiffness performance at the level of a conventional AC8 mixture. However semi-circular bend fracture toughness test at 0°C was not sensitive enough to changes in binder content and its properties therefore it is not recommended for using in mixture design optimisation of highly recycled asphalt.

基于性能的混合物测试用于设计100％回收的混合物，同时验证了将测试方法用于常规设计的高回收沥青混合物的潜力。制备了两种不同等级的再循环混合物，每种具有两种不同的粘合剂含量和一种混合物的聚合物改性沥青。始终使用生物基复兴剂以确保目标粘合剂等级。结果表明，可以设计出具有常规AC8混合物水平的耐车辙性，断裂韧性和刚度性能的100％混合物。但是，在0°C下进行的半圆形弯曲断裂韧性测试对粘合剂含量及其性能的变化不够敏感，因此不建议将其用于优化高回收沥青的混合物设计中。