The use of concrete with polypropylene macrofibers can reduce the fragility and shrinkage of silica fume mixtures. Here. we investigated the effect silica fumes and aggregates have on enhancing high-performance concrete with polypropylene macrofibers. Three dosages of polypropylene macrofibers were evaluated (0. https://www.petsafewirelessfence.com/product-category/skin-protection/