Structural Strength Enhancement of Rigid Pavement Using Scrap Steel Fibre Reinforcement

G. Niranjana, Research Scholar, Dr. Samson Mathew, Assistant Professor, and Dr. P. Jayabalan, Professor, Department of Civil Engineering, National Institute of Technology, Tiruchirappalli.
 
The performance of a pavement or overlay depends on the engineering properties of the material used in construction. The application of Steel Fibre Reinforced Concrete (SFRC) as composite matrix is potentially advantageous from the point of view of its capacity to bear much higher stresses. Under similar loading conditions pavement thickness can considerably be reduced in SFRC, hence reduction in material and cost. Sound SFRC pavement promises an appreciably higher life expectancy, reduced crack growth offer better serviceability and minimum corrosion.

 
In this study, an attempt has been made to analyze the mechanical characteristics of the waste steel scrap material which is available from the lathe is used as a steel fibre for pavement construction and to optimize the fiber content. The characteristics compressive strength and flexural strength of M30, M35, and M40 cement concrete for various proportions of steel scraps are experimentally found out. The steel scrap is added in various proportions by weight of the cement.