Service Life Prediction of High-Performance Concrete with Respect to Chloride Ion Penetration by Incorporated with Fly Ash
E.V. Prudhvi Sai1, B. Kameswara Rao2
1E V Prudhvi Sai, Department of Civil Engineering, Koneru Lakshmaiah Educational Foundation, Vaddeswaram, Guntur (Andhra Pradesh), India.
2B. Kameswara Rao, Department of Civil Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur (Andhra Pradesh), India.
Manuscript received on 02 May 2019 | Revised Manuscript received on 14 May 2019 | Manuscript Published on 28 May 2019 | PP: 496-501 | Volume-7 Issue-6C2 April 2019 | Retrieval Number: F10890476C219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Service life of reinforced concrete structure as time period during which structure will full fill the required performance under defined repair and maintenance. Performance and service life of reinforced concrete structure are governed by several parameters such as strength, quality of concrete, concrete cover and most significantly exposure conditions. Fly ash is used as a supplementary cementitious material in the production of Portland cement concrete. By using fly ash is beneficial in reinforced concrete for low heat of hydration and better resistance against entry of chlorides. Reinforced concrete structures exposed to severe marine environments usually is attributed to the aggressive nature of chloride ions. This work is focused on predicting the remaining service life of reinforced concrete structure against chloride ion penetration due to incorporation of fly ash in concrete. The studies have been conducted on twelve mixes with three water binder ratios of 0.3,0.4,0.5 with respective fly ash percentages are 0,70,60,50,40,30%. The exposure ages of chloride penetration specimens are 28 and 90 days. For this study 84 number of cubes (150*150*150) were casted. The specimens were exposed to 3.5% sodium chloride solution. Chemical analysis is carried out to the exposed sodium chloride specimens.
Keywords: Fly Ash, Corrosion, Service Life Prediction, Water Binder Ratio, Chloride Ion Penetration.
Scope of the Article: Concrete Structures