FLEXURAL AND TENSILE STRENGTH PROPERTIES （弯曲和拉伸强度属性）.pdfVIP

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FLEXURAL AND TENSILE STRENGTH PROPERTIES （弯曲和拉伸强度属性）.pdf

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FLEXURAL AND TENSILE STRENGTH PROPERTIES （弯曲和拉伸强度属性）

VOL. 7, NO. 3, MARCH 2012 ISSN 1819-6608 ARPN Journal of Engineering and Applied Sciences ©2006-2012 Asian Research Publishing Network (ARPN). All rights reserved. FLEXURAL AND TENSILE STRENGTH PROPERTIES OF CONCRETE USING LATERITIC SAND AND QUARRY DUST AS FINE AGGREGATE 1 2 Joseph. O. Ukpata and Maurice. E. Ephraim 1Department of Civil Engineering, Cross River University of Technology, Calabar, Nigeria 2Department of Civil Engineering, Rivers State University of Science and Technology, Port Harcourt, Nigeria Email: joeukpata@ 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 and tensile characteristics of concrete using combinations of lateritic sand and quarry dust as complete replacement for conventional river sand fine aggregate. Samples of concrete (eg. cylinders, 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 0.65. Concrete samples were prepared, cured for 28 days, and tested in the laboratory to destruction in order to determine their flexural and tensile strength pro