1Post Graduate Student, M. Tech, Structural Engineering, PRIST University, Trichy-Thanjavur highways, Vallam, Thanjavur, Tamilnadu, India
2Assistant Professor, Department of Civil Engineering, PRIST University, Trichy-Thanjavur highways, Vallam, Thanjavur, Tamilnadu, India
Online published on 31 October, 2017.
It is estimated that more than 63, 00, 000 scrap-tires weighing more than 70, 00, 00 tones are produced in India. This waste being non-biodegradable poses severe fire, environmental and health risks. Concrete is one of the most popular construction materials. Due to this fact, the construction industry is always trying to increase its uses and applications and improving its properties, while reducing cost. In general, concrete has low tensile strength, low ductility, and low energy absorption. Concrete also tends to shrink and crack during the hardening and curing process. These limitations are constantly being tested with hopes of improvement by the introduction of new admixtures and aggregates used in the mix. Hence, it is inevitable to find an alternative material to the existing most expensive, most resource consuming Portland cement. Geopolymer concrete is an innovative construction material which produced by the chemical action of inorganic molecules. Fly Ash, a byproduct of coal obtained from the thermal power plant is used as bonding agent. Fly ash is rich in silica and alumina reacted with alkaline solution produced aluminosilicate gel that acted as the binding material for the concrete. It is an excellent alternative construction material to the existing plain cement concrete. Geopolymer concrete shall be produced without consuming of ordinary Portland cement. This paper briefly reviews the constituents of geopolymer concrete, its durability.
Geopolymer Concrete, Fly Ash, Strength, Curing, Applications
