e-ISSN: 2582-5208 International Research Journal of Modernization in Engineering Technology and Science ( Peer-Reviewed, Open Access, Fully Refereed International Journal ) Volume:05/Issue:08/August-2023 Impact Factor- 7.868 www.irjmets.com www.irjmets.com @International Research Journal of Modernization in Engineering, Technology and Science [84] A REVIEW REPORT ON INFLUENCE OF FIBER ADDITION ON THE MECHANICAL AND DURABILITY CHARACTERISTICS OF NO-FINES CONCRETE Ajay Kumar *1 , Jyoti Bohara *2 *1 Assistant Professor, Department Of Civil Engineering, Sandip University, Madhubani, Bihar, India. *2 Research Scholar, Department Of Civil Engineering, Sandip University, Madhubani, Bihar, India. DOI : https://www.doi.org/10.56726/IRJMETS43768 ABSTRACT No-fines concrete (NFC) is a specialized type of concrete that lacks fine aggregates, resulting in a unique pore structure and enhanced permeability. The mechanical strength and durability of NFC can be further improved by incorporating various types of fibers into the mix. This review report aims to analyze the influence of fiber addition on the mechanical and durability characteristics of NFC. The addition of fibers, such as steel, polypropylene, glass, and natural fibers, has been widely studied and proven to enhance the mechanical properties of NFC. Fiber reinforcement enhances the tensile and flexural strength, impact resistance, and crack resistance of NFC. The improved mechanical characteristics contribute to increased load-bearing capacity and overall structural performance. Moreover, the inclusion of fibers in NFC also improves its durability. The fibers act as micro-reinforcements, reducing the formation and propagation of cracks, and enhancing resistance against freeze-thaw cycles, chemical attacks, and abrasion. Additionally, fiber reinforcement improves the ductility and energy absorption capacity of NFC, making it more resistant to sudden impacts and dynamic loading conditions. Overall, this review highlights the significant benefits of fiber addition in NFC, demonstrating its potential for enhancing both the mechanical strength and durability characteristics of this unique type of concrete. The findings of this report can serve as a valuable reference for researchers, engineers, and practitioners involved in the development and application of NFC in various construction projects. Keywords: Construction Industry, Concrete, Waste Materials, Glass Additives, Plastic Optical Fibers, Bricks. I. INTRODUCTION This review focuses on the properties of no-fines concrete (NFC), a unique type of concrete that does not contain fine aggregates. Instead, NFC is composed of cement, coarse aggregate, and water, resulting in a porous and permeable material. It is also referred to as pervious concrete or porous concrete. Due to its high void ratio, NFC generally exhibits lower strength compared to conventional concrete. The absence of fine aggregates in NFC differentiates it from regular concrete, as shown in Figure 1(a) and 1(b). The voids within NFC are significantly higher (with a void ratio of 18-40%) compared to conventional concrete (with a void ratio of 3- 5%). This particular composition makes NFC suitable for applications in low-traffic volume pavements, residential roads, pathways, sidewalks, parking lots, and other similar areas. This research aims to investigate the effects of incorporating various types of fibers, such as polypropylene fibers, jute fibers, and steel fibers, on the mechanical and durability properties of NFC. The modified NFC samples will be primarily applied in road pavements with low traffic volume. By studying the influence of fiber addition, this work seeks to enhance the performance and structural characteristics of NFC for specific applications. Figure 1(a): No-Fines Concrete. Figure 1(b): Conventional Concrete.