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Experimental study on carbonation depths of OPC and PPC concrete by conventional and advanced methods

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Title Experimental study on carbonation depths of OPC and PPC concrete by conventional and advanced methods
 
Creator Ranjan, Alok
Kumar, Shashi
Kumar, Rajesh
Mohan, Devendra
 
Subject Concrete
Durability
Reinforcement corrosion
Carbonation
Phenolphthalein
X-Ray Diffraction Analysis
Fourier Transform Infrared
 
Description 67-75
Analysis of carbonation depths in concrete through conventional phenolphthalein indicator method as well as advanced
methodologies such as X-ray diffraction analysis (XRDA) and fourier transform infrared (FTIR) method has been used to
evaluate the accurate effect of carbonation on concrete samples. Concrete is carbonated in an acceleration chamber for the
experimental process to achieve results in a limited period. Concrete samples have been prepared by using OPC cement and
PPC cement at three different water/cement ratios (0.40, 0.45, and 0.50), and retained in a carbonation chamber at fixed
parameters. The results of carbonation depths of concrete samples have been obtained from advanced methods as well as
conventional phenolphthalein indicator method and analyzed the results. Carbonation depths obtained from advanced methods
have been nearly double that of results obtained from the conventional method for OPC and PPC concrete. The carbonation
depth of concrete samples is increased with an increase in the W/C ratio. The carbonation depth of PPC concrete samples is
higher in comparison to OPC concrete obtained by all mentioned three methods. Hence OPC concrete is proposed to use in
place of PPC concrete to reduce the risk of carbonation in reinforced concrete structures in the polluted area.
 
Date 2024-04-02T09:48:17Z
2024-04-02T09:48:17Z
2024-04
 
Type Article
 
Identifier 0975-1017 (Online); 0971-4588 (Print)
http://nopr.niscpr.res.in/handle/123456789/63673
https://doi.org/10.56042/ijems.v31i1.2190
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJEMS Vol.31(1) February