ABSTRACT
Everyday a huge quantity of Glass-fiber Reinforced Polymer (GFRP) and Epoxy resin (GRE) waste powder is coming out from the composite pipe industries in Oman. This powder is harmful to human beings and aquatic animals. Composite pipes manufacturing industries are struggling a lot for the disposal of the waste GRE dust. At present, these GRE waste materials are buried under the ground without affecting the groundwater. Impervious layers are constructed to avoid the seepage and protect the groundwater. Composite pipes manufacturing industries are spending huge amounts to save the environment from the GRE waste disposal. In this experimental project work, GRE waste is added to the concrete to partially replace cement with proportions such as 5%, 15% and 25%. Mechanical properties of concrete with and without GRE waste is investigated like compressive, split tensile strength and bending strength tests experimentally. Experimental results depict that the spilt tensile value of concrete with 5% GRE dust is 6.45% more when compared to the control specimen. Also, compressive and bending strengths of concrete with 5% GRE dust is not much affected and it is almost equal to the control specimen.
Keywords: GRE waste powder; experimental investigation; strength properties; control specimen
January 2025 – Sustainable Chemical Engineering