Assessment of Carbonation on Strength Properties of Concrete Made of Mineral Admixtures
V. Suryaprakash Reddy1, N. Venkat Rao2, Ram Mohan Rao Papolu3

1V. Suryaprakash Reddy, Department of Civil Engineering, Institute of Aeronautical Engineering, Dundigal, Hyderabad.
2N. Venkat Rao, Department of Civil Engineering, Institute of Aeronautical Engineering,(autonomus), Dundigal, Hyderabad.
3Dr. Ram Mohan Rao papolu, Department of Civil Engineering, Institute of Aeronautical Engineering (autonomus), Dundigal, Hyderabad. 

Manuscript received on September 15, 2019. | Revised Manuscript received on 24 September, 2019. | Manuscript published on October 10, 2019. | PP: 1832-1835 | Volume-8 Issue-12, October 2019. | Retrieval Number: L28581081219/2019©BEIESP | DOI: 10.35940/ijitee.L2858.1081219
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Abstract: Concrete is one of the most suitable materials in the world which are used for construction. It becomes more versatile because of his suitability in almost all situations. Reinforced structures are subject to corrosion by various means. Carbonation is one of these means that causes corrosion of reinforced concrete structures. The service life of the structures has been reduced due to the deterioration of the structures because of the corrosion of the reinforced concrete due to carbonation. This paper focuses on the effect of carbonation on the mechanical properties of concrete composed of mineral admixtures, such as ground granulated blast furnace slag and silica fume, by partial replacement of the cement. In this experiment, silica fume replaced cement in 5%, 10%, 15% and ground granulated blast furnace slag replaced the cement in 10%, 20%, 30%. Samples such as cubes, cylinders and prisms were casted and cured. Certain number of these specimens were also placed in carbonation chamber and tested for compressive strength, tensile strength and flexural strength. Normal concrete samples are also tested and the results are compared.
Keywords: Carbonation, Compressive Strength, Flexural Strength, Split Tensile Strength, Silica Fume.
Scope of the Article: Concrete Engineering