Design of Dense Asphalt Concrete Mix with Mod...

Design of Dense Asphalt Concrete Mix with Modified Bitumen And Recycled Concrete Aggregate

Author Name : A.S.P.V.V.S. Sai Jagadish Naidu, B. Ramesh

ABSTRACT

Asphalt pavement performance is always being improved by scientists and engineers. Modification of the asphalt binder is one method used to enhance the performance of the pavement. It is believed that adding fibers to asphalt improves the material's strength and fatigue properties while also increasing its ductility. Carbon fibers may provide a fantastic opportunity for asphalt modification due to their natural compatibility with asphalt cement and superior mechanical qualities. It is discovered that evenly dispersed fibers form a network inside the composite's internal structure, resulting in more compact asphalt concrete. Recycled concrete aggregate (RCA) is one of the world's greatest wastes, formed when concrete constructions such as buildings, bridges, and dams are demolished. Scientists and researchers, as well as those in positions of power, want to investigate waste material recycling for environmental and economic benefits. The present article describes a method for mixing carbon fibers and bitumen that ensures uniform fiber distribution, as well as an attempt to study the effects of using recycled concrete aggregates (RCA) in combination with natural aggregates and carbon modified bitumen for the design of Dense Asphalt Concrete. The Marshall Procedure is used to conduct experimental research and the Optimal Binder Content (OBC) for DAC is determined. By preparing asphalt concrete mixes, detailed laboratory examinations will be conducted. The volumetric characteristics of the blends will be determined, as well as different strength tests like as marshal stability.