FLEXURAL STRENGTH PROPERTIES OF CONCRETE USING LATERITIC SAND AND QUARRY DUST AS FINE AGGREGATE
Abstract
ABSTRACT
This is part of a research on the structural characteristics of concrete using lateritic sand and quarry dust as fine aggregate. This paper presents the results of an experimental study investigating the flexural strength of concrete using combinations of lateritic sand and quarry dust as complete replacement for conventional river sand fine aggregate. Samples of concrete beams were made using varying contents of lateritic sand and quarry dust as fine aggregate. The proportion of lateritic sand was varied from 0% to 100% against quarry dust at intervals of 25%, using concrete mix of 1:1.5:3 and water/cement ratio of 0.60. Concrete samples were prepared, cured for 28 days, and tested in the laboratory to destruction in order to determine their flexural strength properties. The results for flexural strengths of concrete using 100% quarry dust sand and laterite were found at 7, 14, 28, days has the av
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