Partially Replacement of Regional (Dhangadhra) Coarse (Sand Stone) Aggregate with Natural Course Aggregate (Basalt Stone) in Concrete Production

The present study makes an effort to assess a safe and economy use of such a structural grade concrete, a supplementary material for housing as well as infrastructure industry. The investigation was carried out using workability test, axial compression test, flexural strength test and split tensile strength test. There will be 33 batches of concrete mixes consist of such combination in natural different types of coarse aggregates like 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100%. With variation of W/C ratio as 0.55,0.50 and 0.45. The parametric study includes proportions of both types of coarse aggregate regional coarse aggregate and natural coarse aggregate. The study shows the combined gradation improve strength and workability of concrete. The experimental study carried out to on different proportion 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% and 100%. Along with control mix to check effect on compressive strength, split tensile strength and flexural strength. The results are useful for application as per availability of aggregate.