EFFECT OF NANO-METAKAOLIN ON THE FRESH AND HARDENED PROPERTIES OF CONCRETE

Abstract

The increasing worldwide need for sustainable, high-performance concrete has prompted significant study into the uses of nanotechnology in cementitious materials. This study seeks to evaluate the properties of fresh and cured concrete with nano-metakaolin (NMK) as a nanoscale additive. This study involved NMK at weight ratios of 0%, 3%, 6%, 9%, and 12% relative to cement. A total of 30 concrete specimens was made adopting a mix proportion of 1:1:2. Total of 30 concrete samples were assessed for water absorption (WA) and compressive strength (CS). The ideal outcome shown that the CS reached 36.5 MPa with the incorporation of 6% NMK in concrete. The workability and WA of concrete declined as NMK content increased.

Keywords: Concrete, nano-metakaolin, slump test, water absorption, Compressive Strength.