An Experimental Analysis of Coarse Aggregate Size Influence on Concrete Strength
DOI:
https://doi.org/10.54060/a2zjournals.jmce.67Keywords:
Aggregate size, Concrete strength, compressive strength, Mix ratio, Slump testAbstract
Concrete is one of the most widely used construction materials, and its mechanical properties, particularly compressive strength, are influenced by various factors, including the size of coarse aggregates. This research investigates the effect of different coarse aggregate sizes on the compressive strength of concrete. Through a series of controlled experiments, concrete samples with varying coarse aggregate sizes were tested, and the results demonstrated a correlation between aggregate size and compressive strength. This study provides insights into optimal aggregate selection for enhancing concrete performance in construction applications. The aim of this research is to evaluate the impact of different coarse aggregate sizes on the strength of concrete. The materials used in this study included water, fine aggregates, coarse aggregates, and cement. For testing fresh and hardened concrete, we employed the workability test (slump test) and the compressive strength test (cube test) in accordance with IS 456-2000. The specimens for compressive strength testing measured 150 mm x 150 mm x 150 mm and were cured for 7, 14, and 28 days, using a concrete mix with a grade of M20, (mix ratio of 1:1.5:3).The results indicated that concrete with aggregate sizes between 20 mm and 25 mm achieved higher compressive strength after 28 days compared to those with sizes of 12 mm to 19 mm and 4.75 mm to 10 mm.
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