Review of Strengthening of Porous Concrete for Storm Water Management

Pervious concrete is an environmentally sustainable pavement material widely used for stormwater management due to its high permeability and ability to recharge groundwater. However, its major limitation is low mechanical strength, which restricts its application to low-traffic areas. Numerous studies have attempted to improve the strength characteristics of pervious concrete using various admixtures, fibers, mineral additives, and modified mix designs without significantly affecting permeability. This review paper critically examines existing literature and experimental studies focusing on strength enhancement techniques for pervious concrete, with particular emphasis on the use of polypropylene (PP) fibers. Based on the comparative evaluation of methodologies and results from selected journals and reference documents, this paper concludes that polypropylene fiber reinforcement is one of the most effective and practical methods to improve compressive and tensile strength of pervious concrete while maintaining adequate permeability, making it suitable for low-volume roads and sustainable pavement applications.