Carbonation Depth Analysis of Concrete Using Various Fly Ash and Silica Fume Doses


Authors : Maninder Pal Singh; Vishal Mahajan

Volume/Issue : Volume 9 - 2024, Issue 12 - December

Google Scholar : https://tinyurl.com/4zfe2mur

Scribd : https://tinyurl.com/5n74hps9

DOI : https://doi.org/10.5281/zenodo.14591215

Abstract : As part of a research initiative conducted by the governments of several nations, it has been noted that structures constructed between 1960 and 2000 are currently exhibiting significant indicators of degradation. It is clear that a harsh environment has an effect on failure rates. This paper reports on an experimental study that was conducted to examine how carbonation affected the mechanical characteristics of both plain concrete and concrete that had various doses of fly ash and silica fume added by weight replacement of ordinary Portland cement. This study uses cement with a constant water/cement ratio of 0.46. The effect of carbonation is observed by measuring the depth of carbonation using phenolphthalein solution. In the present study, it adjudged that from all fly ash and silica fume based mix combinations the mix combination PC20SF mentioned as the most optimum mix combination in terms of decrease in carbonation depth.

Keywords : Carbonation Depth, Durability of Concrete, Silica Fume, Fly Ash.

References :

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14. Claisse, P.A. Cabrera J.G. and Hunt, D.N.,2001 Measurement of porosity as a predictor of the durability performance of concrete with and without condensed silica fume, Advances in Cement Research, 13(4), 165-174.

As part of a research initiative conducted by the governments of several nations, it has been noted that structures constructed between 1960 and 2000 are currently exhibiting significant indicators of degradation. It is clear that a harsh environment has an effect on failure rates. This paper reports on an experimental study that was conducted to examine how carbonation affected the mechanical characteristics of both plain concrete and concrete that had various doses of fly ash and silica fume added by weight replacement of ordinary Portland cement. This study uses cement with a constant water/cement ratio of 0.46. The effect of carbonation is observed by measuring the depth of carbonation using phenolphthalein solution. In the present study, it adjudged that from all fly ash and silica fume based mix combinations the mix combination PC20SF mentioned as the most optimum mix combination in terms of decrease in carbonation depth.

Keywords : Carbonation Depth, Durability of Concrete, Silica Fume, Fly Ash.

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