The interlocking of aggregate is critical during compaction. Nevertheless, few mix design specifications include any specific requirements for locking points, mainly because it is difficult to determine when interlocking happens during compaction precisely. This study's objectives were to validate the locking point concept by applying performance tests and evaluating aggregate interlocking influence on the rutting resistance and the fatigue cracking. Two types of asphalt mixture composed of limestone aggregates and PG 64–22 binder and designed at different Ndesign were used in this study. Two types of performance tests, the Flow Number and the IDEAL CT, were used to determine and confirm the locking point's definitions. Results showed that the locking point (LP)2-2-3 and LP3 definitions during Superpave gyratory compaction were the most reasonable to define the locking point based on the vertical axial strain from the Flow Number and the Cracking Tolerance Index (CTindex) from the IDEAL CT test..

骨料的互锁在压实过程中至关重要。然而，很少有混合设计规范包含对锁定点的任何特定要求，主要是因为难以精确确定压实期间何时发生互锁。这项研究的目的是通过应用性能测试并评估骨料互锁对耐车辙性和疲劳裂纹的影响来验证锁定点的概念。本研究使用了两种由石灰石骨料和PG 64-22粘结剂组成的沥青混合料，并在不同的Ndesign下进行了设计。两种类型的性能测试，即“流量编号”和“ IDEAL CT”，用于确定和确认锁定点的定义。