Paper Key : IRJ************741
Author: Katakam Naga Sateesh ,Induri Siva Reddy ,Arise Pavan Shankar ,Jaladi Vamsi Ratnakar ,Anagani Sai Durga Prasad ,Kalyanpur Venkateswara Rao
Date Published: 05 May 2023
Abstract
In this experimental investigation stands for improving the properties of concrete with respect to strength and durability characteristics especially in this aggressive investigation review states on addition of Cement with mineral admixtures and superplasticizer. High strength concrete appears to be better choice for strong and durable structures. A large amount of by-product or wastes such silica fume and fly ash. are generated by industries, which causes environmental as well as health problems due to dumping and disposal. Proper introduction of silica fume and fly ash in concrete improves both the strength and durability characteristics of the concrete. The effects of flyash on workability, density and on various strength properties of high strength concrete M70 of grade concrete have been studied. The silica fume content varies from (5%, 10% and 15%) and fly ash contents varies from (10%, 20%, 30%) by volume of cement is used in concrete. For this purpose along with a Control Mix, 18 sets were prepared to study the compressive strength, tensile strength and flexural strength. Each set comprises of 9 cubes, 9 cylinders and 9 beams. All specimens are water cured and tested at the age of 7 and 28-days. Super plasticizer is to be used to increase workability. Ductility and bond of concrete is to found to increase in silica fume and fly ash in the concrete as observed from the Compressive test, Tensile Strength and Flexural Strength tests were performed in the hardened state. In this study optimum percentage silica fume and fly ash arrived at the keeping optimum percentage. The strength and durability properties of M70 grade of concrete was studied.Keywords: Silica Fume, Fly ash, Compressive Strength, Split Tensile Strength, Flexural Strength and acid attack.
DOI LINK : 10.56726/IRJMETS37929 https://www.doi.org/10.56726/IRJMETS37929