Paper Key : IRJ************897
Author: Bharti Singh,Harsh Gupta
Date Published: 06 Jan 2023
Abstract
Concrete has been comprehensively utilized as a construction material due to its advantageous characteristics. Many researchers were working in order to make concrete to withstand more strength and durable. Also researchers make an attempt to utilize industrial wastes as replacement for cement, fine and coarse aggregates for making concrete, which partially improves strength, durability and helps in protecting the environment. Thus, the production of normal concrete, high strength concrete and high performance concrete, etc., with partial replacement of industrial wastes, adding mineral admixtures and natural plant extracting admixtures are highly recommended.1.1HIGH PERFORMANCE CONCRETEIn many construction applications, concrete is used to meet a specific requirement besides high strength. For example in pre stressed concrete bridges, high rise buildings, off shore structures, highways, airport pavements and in machine foundations, concrete should possess high fatigue strength. In nuclear reactors exposed to huge temperatures, the concrete must have a high resistance to thermal cracking. The need for high strength and durability property requirements have made the researchers to develop concretes with high strength and durability through research, out of different grades of concrete. The M50 grade concrete provides several advantages such as high strength and better durability properties (ACI Committee 211.4R-93 1996). Over the past few decades, M50 grade concrete has been used for a wide range of applications. The M50 grade concrete is preferably used in Railway Bridge to eliminate vibration problems and minimize the maintenance cost.