Enhancing Pervious Concrete for Sustainable Urban Stormwater Management: A Novel Mix Design Approach with Local Pozzolans and Polypropylene Fibers
نویسندگان
1 Ph.D. candidate, water science and engineering, Ferdowsi University of Mashhad, Mashhad, Iran
2 Professor, water science and engineering, Ferdowsi University of Mashhad, Mashhad, Iran
3 Ph.D., Department of Civil Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
4 Associate Professor, water science and engineering, Ferdowsi University of Mashhad, Mashhad, Iran
5 Assistant Professor, Department of Civil Engineering, Faculty of Engineering, Ferdowsi University of Mashhad, Mashhad, Iran
doi
10.22075/jrce.2025.2265چکیده
Urbanization significantly reduces the natural permeability of land, which exacerbates issues related to surface runoff and drainage. Pervious concrete serves as a sustainable pavement solution that enhances water infiltration and helps mitigate urban flooding. This study aimed to develop and evaluate innovative mix designs that incorporate locally sourced ceramic and carbide-based pozzolans, along with polypropylene fibers. The optimal mix was identified as consisting of 5% ceramic pozzolan, 5% carbide pozzolan, and polypropylene fibers. This blend demonstrated exceptional properties, achieving a permeability rate of 140,947 mm/h, a compressive strength of 14.5 MPa, a flexural strength of 2.4 MPa, a porosity of 34.8%, and a density of 1,799 kg/m³. When compared to baseline mixes, the pozzolanic blends not only improved mechanical performance but also maintained or enhanced permeability. These results highlight the proposed mix's substantial potential for cost-effective and high-performance applications in sustainable urban drainage systems, ultimately contributing to improved stormwater management in urban settings.
