An investigation of flexural and compressive strengths of fly ash coarse aggregate concrete beams

Abstract

Fly ash is a great cement alternative that may be utilized in the cement manufacturing process or as a separate addition at the batching plant during ready-mix concrete production on-site or at a ready-mix concrete facility. As a by-product, India’s 85 thermal power plants produce a massive amount of Fly ash (140 million tonnes per year), almost equalling the annual cement output. Fly ash is dumped in open fields, causing ecological and environmental issues. In this case, three considerations—environmental safety, energy savings, and the intrinsic benefits of using Fly ash—necessitate a thorough examination of the implications of using Fly ash in concrete construction by the construction industry. Thus, there is a lot of interest in using fly ash in concrete, which is reflected in the concrete industry’s current growth. As a result, the focus of this work is on an experimental investigation of the characteristics of fly-ash concrete. The flexural behaviour of fly ash concrete beams with and without reinforcing is the subject of this study. The prepared fly ash concrete beams surface morphology and porous of materials was analyzed by SEM and by XRD analysis. Fewer than two point loads, all beams have the same dimensions. Fly ash aggregate concrete has higher Ultimate load, Energy absorption potential, and Deflection values than ordinary concrete, according to the results of the experiment. The crack value is calculated as same.