Mechanical Properties of Ternary Blended Concrete: An Experimental Study

Abstract

Concrete has become part of civil engineering world and every structural development is more or less dependent on concrete. The increased concrete usage is resulting in higher cement productions which is significantly leading to CO2 emissions. We can only reduce carbon emissions when if we could cut the usage of cement and hence, replacement of cement with other durable substances is so far, the best found solution and hence blended concrete has come into picture for the past few years. Sustainable developments leading to circular economy is the key factor in finding alternative binders to concrete production that could possibly minimize the carbon dioxide emission volume. Also, the river sand is becoming scarce and hence utilization of manufactured sand with a visibly good results in strength as well as durability properties are being experimented. The present study experimented on the industrial end products i.e., Supplementary Cementitious Materials (SCMs) namely, Metakaolin, fly ash, Silica Fume, GGBS, etc which we use to replace the cement as far as possible. The effective usage of these materials as substitutes to cement is hereby analyzed with certain variations in the proportion of addition of these materials. Rather than utilizing the SCMs directly, the concept of dissolution is experimented in order to analyze the best results. The thesis work highlights on analyzing the mechanical properties of concrete namely Compressive Strength, Split Tensile Strength and Flexural Strength in blended mixes to that of conventional concrete.