The Effectiveness of Organic-Based Admixed Inhibitors in Multi-Exposure Environments

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Gautam Kumar; Ayush Sangal

The Effectiveness of Organic-Based Admixed Inhibitors in Multi-Exposure Environments

Authors: Gautam Kumar, Ayush Sangal

Unique Paper ID: 182607
Volume: 12
Issue: 2
PageNo: 2940-2944

Keywords: Corrosion Durability Organic Inhibitors Concrete 4-Amino Benzoic Acid Triethyl Phosphate Reinforcement Protection

Abstract:
Reinforced Cement Concrete (RCC) remains the cornerstone of modern construction due to its structural capabilities. However, the durability of RCC is persistently challenged by reinforcement corrosion, particularly under chloride ingress and carbonation exposure. This research investigates the corrosion inhibition efficiency of two organic compounds—4-amino benzoic acid (ABA) and triethyl phosphate (TEP)—as admixed inhibitors in reinforced concrete. Initially, tests were conducted in simulated pore solutions to evaluate the inhibitors' behavior under laboratory-controlled chloride and CO2 exposures. Subsequently, concrete prisms using Ordinary Portland Cement (OPC) and Portland Pozzolana Cement (PPC) were cast and subjected to similar exposure conditions. Electrochemical techniques, including Linear Polarization Resistance (LPR) and Half-Cell Potential (HCP), were employed to assess corrosion performance. Additionally, concrete cubes were tested for free chloride content and carbonation depth. The results showed ABA’s superior performance, particularly in PPC concrete, where its chelating properties effectively preserved the steel’s passive layer. In contrast, TEP, despite promising results in pore solution, was ineffective in concrete, likely due to its single functional group and dosage limitations (Teryusheva, 2020; Shehnazdeep & Pradhan, 2022). This study confirms the potential of ABA as a robust organic corrosion inhibitor in harsh exposure conditions.

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Cite This Article

ISSN: 2349-6002
Volume: 12
Issue: 2
PageNo: 2940-2944

The Effectiveness of Organic-Based Admixed Inhibitors in Multi-Exposure Environments

Available:https://ijirt.org/article?manuscript=182607

21 Jul, 2025

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