Cement based composites 1 Compressive strength 1 Crack-width controls 1 Curaua fibers Fibers 1 Fibre composites 1 Hardening behavior 1 Hybrid composites 1 PVA 1 Polyvinyl alcohol fiber 1 SHCC 1 Second group 1 Strain hardening 1 Strain hardening behavior 1 curaua fiber 1 hybrid composite 1 natural fiber 1