دراسة تجريبية لسلوك الخرسانة المحتوية على ألياف البولي بروبيلين والمشبك الفولاذي على مقاومة الخرسانة للصدمات

Annually, engineers face many sustainability problems due to thousands of tons of concrete being manufactured for buildings and structures. So, alternatives to some construction materials are used. In this research, cement composites reinforced with steel mesh and cement composites reinforced with polypropylene fibers (PPFs) were used. For this purpose, 36 concrete slabs were poured with dimensions of 40 x 40 x 4 cm containing steel mesh, and PPF with dimensions (10 x 10, 15x15, 20x20, 25x25, and 40x40) cm in the center of the slab. The impact resistance of both types of concrete was examined, in addition to noting the initial cracking of the samples and examining the energy absorption at the initial cracking and the final failure of both types, through the results, it was found that the use of steel mesh 40x40 cm is the best in terms of its resistance to repeated impact loads as well as its energy absorption.