Study on the Investigation of the Fatigue Behavior of Engineered Cementitious Composites with High Tenacity Polypropylene (HTPP) Fibers

In this study, the fatigue behavior of Engineered Cementitious Composites incorporating high tenacity polypropylene fiber was investigated. The strain curves, cycle numbers, crack numbers and stiffness values were obtained from experiments carried out with load-controlled method at 80, 90 110% stress level (maximum stress/ultimate static strength). conclusion, 80% level, average 1127 cycles, 1.37% unit deformation capacity 6 cracks achieved. At 90% 215 1.89% 8 obtained. specimens where applied, number cycles decreased to 38 increased up 2.60% also doubled raised 15 cracks. Additionally, 8.68 9.57 GPa in first levels, it observed that gradually increasing cycles. Although achieved micro formed suddenly due very applied loading rigidity remained low since plastic deformation.