Experimental investigation on strength of concrete using plastics and metakaolin.

This paper presents the result of an experimental investigation carried out to find the suitability of metakaolin and plastic fibre in production of concrete. The conventional concrete M30 was made using OPC 53 grade and other mixes were prepared by replacing part of OPC with metakaolin and adding plastic fibre by weight of fine aggregate. The replacement metakaolin level were 5%,10%,15%,20% and from this finding the optimize value and kept constant further adding plastic fibre with 0.5%,1%,1.5% by weight of fine aggregate. All mixes were tested for compressive, spilt tensile and flexural strength at the end of 28 days. The test result indicates the metakaolin can be used effectively to replace 15% cement in concrete. The optimize value 15% kept constant and adding plastic fibre can be used effectively adding 1% by weight fine aggregate in concrete.