Comparison of compressive strength of cement mortars using an industrial product obtained from three different regions of India

Abstract

The quest to realize initial strength and develop high strength concrete has increased considerably in recent times. Cement is one among the main sources of environmental impacts of concrete use. it's therefore recognized because the most practical solution to scale back the environmental impacts of concrete, the shortage of cement content. this will be achieved by replacing some of cement with an industrial product like metakaolin. Metakaolin is that the material obtained by calcination of kaolinite at 500 and 800 degrees. Metakaolin (MK), in its applications partial replacement of cement, features a particularly growing role worldwide for technological enhancement thanks to its pozzolanic activity and mainly to realize strength. This paper portrays the results of an investigation on the utilization of metakaolin (MK) as a complementary cement material. Four metakaolin substitution levels were employed in experimental studies of mortar mixes: 5% 10% 15% and 20% by weight of hydraulic cement. The concise strength of mortar cubes with different levels of metakaolin with different chemical properties obtained from three different regions of India, namely Maharashtra, Gujarat and Tamil Nadu, was compared. The chemical composition of varied metakaolin was obtained by conducting X-ray deflection analysis. Mortar cubes are cast with varying w / b ratios, i.e. 5% to twenty substitution by metakaolin with replacement of cement at 0.30, 0.35, 0.40 and 0.45 w / b ratios. The results depicted that, overall, 20% substitution of metakaolin from Maharashtra, Gujarat and Tamil Nadu significantly increased the compressive strength. At a ratio of 0.45 w / b, Metakaolin from Tamil Nadu achieved initial strength upon 10% replacement of cement by metakaolin.Metakaolin.