PRIYANKA AHIRWAR,PROF. RAKESH SAKALE. An Experimental Investigation on M-30 Grade Concrete Prepared by Partial Replacement of Cement with Polypropylene Fiber, Coconut Shell Ash and Colloidal Nano Silica. International Journal of Research & Technology, [S. l.], v. 14, n. 3, p. 816–831, 2026. Disponível em: https://ijrt.org/j/article/view/1750. Acesso em: 25 aug. 2026.