Effect of crushed coarse aggregate on properties of concrete
DOI:
https://doi.org/10.5377/nexo.v34i05.13109Keywords:
Cement, coarse aggregate, compressive strength, ultrasonic pulse velocityAbstract
This paper presents the effect of the use of crushed coarse aggregate of different size and qualities, on the mechanical properties of concrete. Concrete mixtures with water/cement ratios of 0.50 and 0.45, with two types of cement, and coarse aggregates of ½” and ¾”, quality A and B, were prepared. Cylindrical specimens (100 mm x 200 mm) were cast and moist-cured for 7 days. The compressive strength and the ultrasonic pulse velocity at different ages were determinate. Results indicate that the size and quality of aggregate affected the mechanical resistance of concrete mixtures.
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