We all know that the tensile strength of concrete is less than the compressive strength of concrete The major scope of this research is to study the mechanical properties of GFRC is a fiber-reinforced concrete by the addition of glass fibre to increase the tensile strength and to compromise the need in demand of naturally occurring fine aggregate in construction field by partially replacing the non - bio degradable waste as fine aggregate. Glass fiber-reinforced concrete consists of high tensile strength, Glass fiber is a non-corrosive material and non - Bio degradable waste used here is the purpose to reduce the demand of naturally occurring fine aggregate in construction and to conserve nature. the plastic waste used (PET).