Review on Accelerated Carbonation on the Properties of Concrete
Rajani V Akki1, K.E.Prakas2

1Rajani V Akki, Assistant Professor, School of Civil Engineering, REVA University, Bangalore, Karnataka, India.
2Dr. K.E. Prakash, Professor & Dean, Department of Civil Engineering, Shree Devi Institute of Engineering, Mangalore, Karnataka, India

Manuscript received on December 28, 2020. | Revised Manuscript received on February 13, 2021. | Manuscript published on February 28, 2021. | PP: 63-66 | Volume-10 Issue-3, February 2021. | Retrieval Number: 100.1/ijeat.C21230210321 | DOI: 10.35940/ijeat.C2123.0210321
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Abstract: Concrete is an essential material in all constructions throughout the world. It has lot of uses in our daily routine life. Every material has to deteriorate and damage due to many factors in the same way the concrete also deteriorates. The carbonation process is identified as a main reason for the corrosion in reinforcement concrete structure. The mechanism of carbonation which includes the entrance of carbon dioxide (CO2) into the solid permeable framework of concrete to shape a situation by decreasing the pH around the fortification and inception of the corrosion procedure. This paper investigates the impact of the carbonation on the characteristics of the concrete like strength in compression, split tensile strength, flexural strength, shear strength and durability. The addition of supplementary cementitious materials like fly ash, GGBFS, rice husk ash, metakaolin is known to enhance the strength and durability of concrete in construction. In this paper an accelerated carbonation test has been done to assess concrete carbonation on specimens made with cement and with the partial replacement of cement by fly ash GGBFS, rice husk ash, metakaolin. An accelerated carbonation chamber has been constructed for creating an environment of carbonation process to occur and also the passage of carbon dioxide gas is kept constant for all the cubes, cylinders and beams. Concrete cubes, cylinders and beams are prepared for M30 grade subjected to different percentages of carbonation. 
Keywords: Concrete, accelerated carbonation, durability, cementitious materials
Scope of the Article: Concrete Engineering