A Comprehensive Study on the Use of High Performance Concrete in Rigid Pavement

Abstract

Rigid pavements, primarily constructed from concrete, offer significant advantages in terms of durability and load distribution, especially for heavy traffic applications like highways and airports. High Performance Concrete (HPC) represents a significant advancement over conventional concrete, engineered to provide superior strength, enhanced durability, improved workability, and greater resistance to environmental degradation. This paper details an experimental study focused on the application of HPC in rigid pavement construction. It covers the specific materials used, including high-quality cement, supplementary cementitious materials (SCMs) like fly ash and silica fume, specialized admixtures such as superplasticizers, and carefully selected aggregates. The design specifications, emphasizing a low water-cement ratio, are discussed alongside the critical properties achieved, such as high compressive and flexural strength, low permeability, and resistance to abrasion and freeze-thaw cycles. Standard testing methodologies employed to evaluate these properties, including compressive strength, flexural strength (Modulus of Rupture), splitting tensile strength, and workability (slump test), are outlined. The study concludes that the utilization of HPC in rigid pavements leads to enhanced performance, extended service life, and reduced long-term maintenance costs, making it a sustainable and cost-effective solution for modern infrastructure demands.