Akademik Veri Yönetim Sistemi
Al-Rafidain Engineering Journal, cilt.30, sa.2, ss.137-150, 2025 (Scopus)
Warm-mix asphalt (WMA) is produced at lower temperatures than hot-mix asphalt (HMA), suggesting reduced compaction efforts. This study aims to evaluate rutting, cracking, and fatigue resistance of WMA under three compaction efforts (CE: 35, 50, and 75 blows/face) using Kim and Semi-Circular Bending tests to measure deformation strength, fracture energy, flexibility index, and J-integral (fatigue parameter). A 40/50 penetration grade base binder was modified with 5% natural zeolite (NZ) and 5% synthetic zeolite (SZ) by mass to produce natural zeolite-warm mix asphalt (NZW-MA) and synthetic zeolite-warm mix asphalt (SZWMA). Seventy-two Marshall-compacted samples underwent statistical analysis to determine optimal CE. Key finding can be listed as follows: NZWMA required 50 blows/face and SZWMA 75 blows/face to meet the minimum 3.2 MPa deformation strength (Kim test) and J-integral ≥ 0.5 (critical strain energy rate); NZWMA at 50 blows saved more time and fuel than SZWMA while satisfying performance criteria; Rutting, crack-ing, and fatigue resistance exhibited consistent trends with increasing CE for both mixes. The results demonstrate NZW-MA’s efficiency under moderate compaction, offering practical advantages in asphalt production by balancing performance and energy savings. This study provides insights into optimizing CE for WMA technologies, emphasizing NZW-MA’s potential for sustainable pavement applications.