Compressive Strength of Concrete Retrofitted by Fiberglass - Reinforced Polyethylene Terephthalate EthyleneVinyl Acetate with varying thickness

Abstract

One of the issues presently experienced by the construction and construction sectors is the deterioration of the quality of multiple types of concrete constructions. Strengthening of these structures becomes necessary whenever the reinforced concrete is insufficient to maintain their service functions and/or due to natural causes. This research study aimed to analyze the effect of varying thickness of fiberglass enhanced (PET-EVA) on compressive strength of concrete for retrofitting. The experimental research method was employed in this study using ASTM C39/C39M for compressive strength of concrete. Fiberglass retrofitted concrete specimens divided into three categories. They are (a) chopped strand mat, (b) chopped strand mat and mesh and (c) chopped strand mat, mesh with PET-EVA. The average compressive strength of retrofitted concrete specimens with 1, 3, and 5 layers were 14.993 MPa, 22.280 MPa, and 20.557 MPa, respectively. The compressive strength for specimens 1, 3, and 5 were 305.239 kN, 482.193 kN, and 472.101 kN, respectively. The researchers concluded that the compressive strength of all layers of the concrete fiberglass-reinforced PET-EVA passed the minimum requirements as prescribed by the ACI Standards.