Development of solid state embeddable reference electrode for corrosion monitoring of steel in reinforced concrete structures

Maruthapandian, Viruthasalam; Saraswathy, V.; Muralidharan, S.

doi:10.1016/j.cemconcomp.2016.09.001

Cited by 26 publications

(13 citation statements)

References 46 publications

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“…Nanomaterials possess small volume and adding nanomaterials such as nano-silica (NS), Sardon et al used (3-aminopropyl) triethoxysilane (APTES)-modified SiO 2 to reduce the agglomeration of NS significantly [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. The addition of nano-titanium dioxide (nano-TiO 2 ) [ 14 ], nano-iron (nano-Fe 2 O 3 ) [ 15 ], nano-alumina (nano-Al 2 O 3 ) [ 16 ], carbon nanotube (CNTs) [ 17 , 18 , 19 ], and nano-clay particles [ 20 ] into cementitious composite can improve its overall properties. Among these nanomaterials, NS and CNTs are particularly significant in cementitious composite [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

High-Strength, Waterproof, Corrosion-Resistant Nano-Silica Carbon Nanotube Cementitious Composites

Shi

2020

Materials

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This study aims to prepare a nano-silica-carbon nanotube (NS-CNT) elastic composite using NS (nano-silica), CNTs (carbon nanotube), and (D3F) trifluoropropyltrimethoxysilane. The results show that the activated NS could promote the hydrolysis of D3F. Polymerization products of nano-silica and D3F are uniformly adhered onto the surfaces of CNTs, thereby forming a NS-CNT composite. The composite is composed of irregular ellipsoids of 3–12 μm in length and 2–10 μm in diameter. The activated NS-CNT composite material effectively promotes the further hydration of (CaOH)2 in the cement to form hydrated calcium silicate, and further dehydration–condensation between the surface hydroxyl group of the composite material and the inherent hydroxyl group of (CaOH)2. The cementitious composite-based composites containing the activated NS-CNT exhibit high mechanical strengths, high water resistances, and good durability and corrosion resistance. The chemical characterizations reveal the morphology, nucleation mode of the composite, and its influence on the hydration structure and products of cementitious composite.

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Section: Introductionmentioning

confidence: 99%

High-Strength, Waterproof, Corrosion-Resistant Nano-Silica Carbon Nanotube Cementitious Composites

Shi

2020

Materials

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“…The steel inside the concrete is inevitably affected by corrosion [31]. Severe corrosion can damage the internal components of concrete, which may greatly shorten the service life of the concrete and increase potential safety risks [32][33][34]. Lei et al [35] fabricated superhydrophobic concrete with a water contact angle of 159° and a sliding angle of 5°.…”

Section: Anticorrosionmentioning

confidence: 99%

The Role of Synthetic Superhydrophobic Surfaces in Construction Materials

Shaikh¹,

Qu²,

Grachev

2020

CTCSE

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“…Liquid based SCE are not suitable for embeddable sensors and their use is therefore restricted to laboratory environments [79]. Ag/AgCl reference electrodes are generally used in RCS to measure the rebar corrosion potential [79] or to determine the chloride content in SCPS [73,[120][121][122][123][124][125][126]. Some reported that Ag/AgCl reference electrodes embedded in mortar specimens are stable only for short periods [127] while others found good long-term stability [128].…”

Section: Open Circuit Potential (Ocp)mentioning

confidence: 99%

“…However, it is generally accepted that OCP should always be complemented with other measurements. Several embeddable solid reference sensors in concrete for OCP monitoring have been developed [71,[118][119][120][121][122][123][124]. Saturated calomel electrodes (SCE) and saturated copper sulfate electrodes, due to their compatibility and ease of use, are used for laboratory studies in alkaline environmentssimulated concrete pore solutions (SCPS).…”

Section: Open Circuit Potential (Ocp)mentioning

confidence: 99%

Electrochemical Sensors for Monitoring the Corrosion Conditions of Reinforced Concrete Structures: A Review

Figueira¹

2017

Applied Sciences

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Several methods for corrosion monitoring of reinforced concrete structures (RCS) have been proposed in the last few decades. These systems may be used either in new, existing or repaired structures. The corrosion monitoring can be performed by different methodologies. These may or may not be destructive, use different degrees of complexity and cost, and provide information on the progression and kinetics of the corrosion phenomena. The destructive methods are limited to sampling. Therefore, these may not be representative of the whole structure, which is extremely important in RCS with large heterogeneities both in terms of materials used and in terms of the exposure environment. Within this context, non-destructive methods have been widely developed, which are intended to provide quick information about the entire structure. Ideally, these systems should be able to detect the corrosion state of the steel inside the concrete, the main causes of corrosion and the evolution of corrosion phenomena over time. This manuscript reviews and summarizes the actual state of the art and the main achievements in the field of electrochemical sensors based on non-destructive methods for corrosion monitoring of RCS in the last few years. The challenges and perspectives in this field will also be discussed.

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Development of solid state embeddable reference electrode for corrosion monitoring of steel in reinforced concrete structures

Cited by 26 publications

References 46 publications

High-Strength, Waterproof, Corrosion-Resistant Nano-Silica Carbon Nanotube Cementitious Composites

High-Strength, Waterproof, Corrosion-Resistant Nano-Silica Carbon Nanotube Cementitious Composites

The Role of Synthetic Superhydrophobic Surfaces in Construction Materials

Electrochemical Sensors for Monitoring the Corrosion Conditions of Reinforced Concrete Structures: A Review

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