Development Of Bond Strength Of Pavement Quality Concrete

Abstract

The pavement is a multi-layered component of the road that is arranged one layer on top of the other. Every pavement layer is designed to withstand the weight and strain of moving vehicles. In addition to bearing the abrasive force of moving wheels, the top layer of pavement must be able to sustain weights and pressures from moving cars. Materials or unlimited material may be used to create the pavement's layers. In order to address the primary causes of the rigid pavement section's failure, including inadequate base support, subterranean water seepage, and frost action, dry-lean concrete (DLC) is placed underneath the rigid pavement section's wearing course. Modern rigid pavement incorporates Dry Lean Concrete (DLC) as a significant component. Large aggregate-to-cement ratios, which are below the stiff pavement section's wearing course, are often used in the manufacturing of DLC. Pavement Quality Concrete (PQC) is concrete that has been poured over a dry, lean concrete sub-base and is constructed in compliance with IRC guidelines using large-size aggregates, or 32mm. Because of its ability to support large loads, this structure is only used for concrete runway pavements on highways. The objective of this research is to provide significant perspectives on how to optimize PQC formulations for increased bond strength, which will aid in the creation of robust and environmentally friendly road infrastructure. The conclusions of this study provide engineers and other interested parties with useful advice for building and maintaining PQC pavements. In this study, standard concrete and M35 dry concrete were tested without the use of fly ash. Concrete performance, adhesion strength, uniform strength distribution, tensile strength and compressive strength are measured. After seven, fourteen and twenty-eight days of curing, DLC and PQC strengths were determined.