Relationships between anodic polarisation and corrosion of steel in concrete

Baweja, Daksh; Roper, H; Sirivivatnanon, V.

doi:10.1016/0008-8846(93)90079-o

Cited by 7 publications

(2 citation statements)

References 3 publications

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“…Previous studies have shown that the OCP has many important applications and can provide information on the probability of corrosion . Normally, corrosion of the steel in the simulated concrete pore solution is considered not to be initiated if the OCP is equal to or more positive than −270 mV (SCE) . Accordingly, the time point at which OCP drops to a value below −270 mV is considered as the point of corrosion initiation.…”

Section: Resultsmentioning

confidence: 99%

Modified hydrotalcites for improved corrosion protection of reinforcing steel in concrete – preparation, characterization, and assessment in alkaline chloride solution

Yang

Fischer²,

Cerezo

et al. 2015

Materials & Corrosion

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Six Mg-Al hydrotalcites (Mg/Al ¼ 2 and 3) were synthesized through the modification of two carbonate hydrotalcites (i.e., Mg(2)Al-CO 3 and Mg(3)Al-CO 3 ) by two amino acids (11-aminoundecanoic acid and p-aminobenzoic acid) and sodium nitrite. They were characterized by means of XRD, FTIR, TG/DSC, and elemental analysis. The ion exchange of the modified hydrotalcites (MHTs) were investigated in alkaline chloride solution and the results showed that ion exchange occurred between free chloride ions and the intercalated inhibitive anions in MHT.The corrosion inhibition of three MHTs (Mg/Al ¼ 2) was evaluated based on the open circuit potential and linear polarization resistance evolution of steel coupons in 0.1 M NaOH solution stepwise enriched with chlorides and the results showed that MHT, in particular, Mg(2)Al-pAB exhibited an improved corrosion inhibiting effect in terms of a higher chloride threshold compared to its constituent free inhibitor ions (i.e., pAB). This study confirms the dual protection that MHT, in particular, Mg(2)Al-pAB, offers to the steel: capturing chlorides and simultaneously releasing the intercalated inhibitors to further protect the steel from corrosion.

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Section: Resultsmentioning

confidence: 99%

Modified hydrotalcites for improved corrosion protection of reinforcing steel in concrete – preparation, characterization, and assessment in alkaline chloride solution

Yang

Fischer²,

Cerezo

et al. 2015

Materials & Corrosion

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“…Baweja, Roper and Sirivivatnanon [98] investigated the corrosion of reinforced steel in high chloride conditions by the Tafel polarisation technique. Localised reinforcement corrosion was found with high chloride conditions.…”

Section: Tafel Polarisationmentioning

confidence: 99%

Corrosion monitoring at the interface using sensors and advanced sensing materials: methods, challenges and opportunities

Rajendran

Prathuru

Fernandez

et al. 2023

Corrosion Engineering, Science and Technology

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Detecting and monitoring of corrosion is one of the major challenges in insulated metallic structures or structures with one or more than one interface. This review paper aims to consolidate scattered literature on laboratory system-based corrosion measurement at the interface region. There are range of sensor-based detection and monitoring methods (active, passive) for corrosion rate analysis, including those which measures a surrogate, i.e. quantifying moisture, temperature, pH and qualify other changes or degradations at the interface. With the emergence of a novel application of advanced sensing methods, this review also presents the possibility of the application of hybrid and multifunctional sensing methods at the interfaces, aimed at advancing corrosion monitoring at the interface region. Key research areas of development relating to the application of combination of other materials (e.g. metal oxides, carbon nanotubes, metal nanowires, piezoelectric) as potential sensors and their impact on existing practices in the field are identified.

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The effect of two types of modified Mg-Al hydrotalcites on reinforcement corrosion in cement mortar

Yang

Polder

Mol

et al. 2017

Cement and Concrete Research

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Relationships between anodic polarisation and corrosion of steel in concrete

Cited by 7 publications

References 3 publications

Modified hydrotalcites for improved corrosion protection of reinforcing steel in concrete – preparation, characterization, and assessment in alkaline chloride solution

Modified hydrotalcites for improved corrosion protection of reinforcing steel in concrete – preparation, characterization, and assessment in alkaline chloride solution

Corrosion monitoring at the interface using sensors and advanced sensing materials: methods, challenges and opportunities

The effect of two types of modified Mg-Al hydrotalcites on reinforcement corrosion in cement mortar

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