Effect of Ternary Blends on Mechanical Strength, Durability and Microstructural Properties of Geopolymer Concrete

In this article Fly ash, GGBS and Metakaolin incorporated geopolymer concrete are investigated concerning the mechanical and durability characteristics of Geopolymer concrete. Conventional ordinary cement concrete is also cast to compare the results of this ternary blended geopolymer concrete. This particular concrete is produced using industrial by-products like fly ash, GGBS, and metakaolin which have Alumina and silica as major chemical compositions and can be called a sustainable building material as it utilizes industrial by-products. The main scope of this investigation is to produce eco-friendly geopolymer concrete through the utilization of waste materials, thereby addressing environmental concerns and promoting sustainable concrete production. Crimped Steel fibers with an aspect ratio of 66 were used in this investigation. The effect of varying compositions of GGBS, Metakoalin, and volume fraction of fibers on the strength and durability characteristics of ternary blends is studied. The durability of concrete is defined as the resistance of concrete under aggressive environmental conditions such as rain, wind and adverse climatic conditions without undergoing deterioration of concrete. Mechanical characteristics like compressive, flexural, and split tensile strength and durability characteristics like acid attack, sulphate attack, and chloride ion penetration are studied. The test results reveal that TGPC3-4 Mix showed superior mechanical characteristics and performed well in the durability test. When comparing these test results with those of conventional cement concrete, Ternary blended geopolymer concrete shows better results than OPC Cement concrete.

Automated summary

This article investigates the mechanical and durability characteristics of geopolymer concrete incorporated with fly ash, GGBS, and Metakaolin. The results are compared with conventional ordinary cement concrete. The study aims to produce eco-friendly geopolymer concrete using waste materials and promote sustainable concrete production. The test results show that the ternary blended geopolymer concrete exhibits superior mechanical and durability characteristics compared to OPC cement concrete.