Strain-hardening cement-based composites (SHCC) denote a type of fiber-reinforced concrete that exhibits multiple fine cracks under increasing tensile loading. Reinforcement with short polymer fibers is essential to promote the concrete ductility under dynamic loading, since the fiber and fiber-concrete interaction strongly contribute to the energy absorption. PP fibers are of special interest, because they increase ductility, are inexpensive, widely available and recyclable. The principle feasibility of the manufacturing of bicompontent fibers revealing natural CaCO3 particles in their shell were shown in our previous work. Further studies are now accomplished by melt-spinning using synthetic CaCO3 particles in order to increase the surface roughness. The mechanical fiber performance and particles size distribution along the fiber surface were characterized, as well as the fiber-concrete interaction during single fiber pull-out tests in dynamic mode. The particle addition lead to significant improvement of the fiber-matrix mechanical interlocking compared to a reference commercial monocomponent PP fiber.