TY - CPAPER AU - Mohammed Saidi AU - Dalila Nessah AU - Hamza Mechakra AU - Brahim Safi TI - INFLUENCE OF THE QUANTITY OF NATURAL (ALFA) AND COMMERCIAL (POLYPROPYLENE) FIBERS ON THE PHYSICO-MECHANICAL PROPERTIES OF MORTARS T2 - SWS 2026 Conference Preprints PY - 2026 PB - STEF92 Technology ER -