Journal Title : International Journal of Modern Trends in Engineering and Science

Author’s Name : R Lavanya | R Venkatakrishnaiah  unnamed

Volume 03 Issue 07 2016

ISSN no:  2348-3121

Page no: 143-146

Abstract – In the last few years various research and modification has been done to produce   concrete which has the desired properties. Concrete is one of the most common materials used in the construction field. The current area of research in the concrete was introducing foundry sand and metakaolin in the ordinary concrete. Generation of  waste foundry sand as byproduct of the metal casting industries causes environmental problems because of its proper disposal. Thus its usage in building materials, construction and in other fields is essential for reduction of environmental problems. This research was carried out to produce an eco – friendly concrete. This paper demonstrates the possible use of waste foundry sand and metakaolin as a partial replacement by fine aggregate and cement. An experimental investigation was carried out on concrete containing waste foundry sand in the range of (0%, 10%, 20%, 30%,and 40%) by the weight for M30 grade of concrete. Metakaolin which is obtained by the calcinations of pure or refined kaolinitic clay at a temperature of between 6500C and 8500C, followed by grinding to achieve a fineness of 700-900 /kg exhibits high pozzolanity. When used in concrete it will fill the void space between cement particles resulting in a more impermeable concrete. The metakaolin were replaced in the level of   (5%, 10%, 15%, and 20%) by the weight of cement. Material was tested and compared with conventional concrete in terms of strength and durability. These tests were carried out on standard cube , cylinder and beam for 7 and 14 and 28 days to determine the properties of concrete. The aim of this research was to know the behavior and strength and durability properties of concrete after addition of foundry sand and metakaolin in different proportion by tests like compressive strength by cube specimen , split tensile by cylindrical specimen and flexural strength by beam model. The research was a resource for exploring the potential use of foundry sand and metakaolin as an alternative to virgin raw materials.    

Keywords— foundry sand, metakaolin , compressive strength , split tensile strength, flexural strength 


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