INFLUENCE OF POLYPROPYLENE FIBERS ON THE DUCTILITY OF SAND CONCRETE
Journal: International Journal of Mechanical Engineering and Technology(IJMET) (Vol.10, No. 7)Publication Date: 2019-07-19
Authors : H. Suiffi; A. El Maliki; O. Cherkaoui; M. Dalal;
Page : 217-266
Keywords : Polypropylene fiber; Sand concrete; Mechanical properties; cracks;
Abstract
The appearance of fissures on structural elements has led researchers to develop innovative techniques using synthetic fibers and has triggered a kind of awakening in this area of research. The study of the mechanical behavior of sand concrete mixed with polypropylene (PP) fibers shows that with the incorporation of (PP) fibers into the cementitious matrix, there is some improvement in the ductile behavior of the composite. In our study we tested the composite with different dosages of polypropylene (0.05%, 0.1%, 0.3% and 0.5%), the results showed that the 0.05% fiber dosage in sand concrete with a fiber diameter of 33.2 μm PP gives significant results in terms of flexural tensile strength and a slight improvement in compressive strength compared to the constituent with the same dosage in a sand concrete with a diameter of the PP fiber of 45.5 μm.
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