Self-sensing cementitious composite sensor with integrated steel fiber and carbonaceous powder for real-time application in large-scale infrastructures

Dinesh, A.; Suji, D.; Pichumani, Moorthi

doi:10.1016/j.sna.2023.114209

Cited by 19 publications

(2 citation statements)

References 46 publications

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“…In brief, Table 4 illustrates the composition of components within the self-sensing cement-stabilized sand. In prior investigations, combined conductive fillers were extensively employed to improve the mechanical and electrochemical properties of cementitious composites effectively [35,[64][65][66]. The enhanced impact of hybrid conductive fillers on mechanical and electromechanical characteristics is attributed to their distinct physical attributes [67].…”

Section: Mixing Procedures and Sample Preparationmentioning

confidence: 99%

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Roshan,

Abedi,

Gomes Correia

et al. 2024

Sensors

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Numerous elements, such as the composition and characteristics of carbon nanomaterials, the composition and characteristics of the matrix material, moisture levels, temperature, and loading circumstances, influence the piezoresistive behavior of self-sensing cementitious composites. While some past research has explored the impact of some of these factors on the performance of self-sensing cementitious composites, additional investigations need to be conducted to delve into how loading conditions affect the sensitivity of self-sensing cement-stabilized composites. Therefore, this study explores the influences of various loading conditions (i.e., location of loading regarding the location of recording electrodes, and loading level) on the electromechanical performance of self-sensing cement-stabilized sand. To this end, firstly, the evaluation of the percolation threshold based on 10% cement-stabilized sand specimens containing various multiwall carbon nanotubes (MWCNTs) and graphene nanoplatelets (GNPs) was performed. Then, 10% cement-stabilized sand containing 4% MWCNTs/GNPs was tested under various cyclic compressive stresses. The results suggested that the distance between the loading area and the electrode location used for recording the electrical resistance significantly impacted the sensitivity of cement-stabilized sand. Optimal sensitivity was achieved when the electrodes were positioned directly beneath the loading area. Moreover, the study showed that the stress sensitivity of self-sensing cement-stabilized sand increased proportionally with the stress level. An examination through scanning electron microscopy (SEM) demonstrated that the loading condition influences the bridging characteristics of carbon nanomaterials in cement-stabilized sand, leading to diverse electromechanical behaviors emerging based on the loading condition. This study underscores the importance of considering specific parameters when designing self-sensing cement-stabilized sand for application in practical field use.

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Section: Mixing Procedures and Sample Preparationmentioning

confidence: 99%

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Roshan,

Abedi,

Gomes Correia

et al. 2024

Sensors

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“…Due to its excellent compatibility and durability, SCC constructed of conductive materials plays a vital part in the SHM compared to traditional sensors. Steel fber (SF), carbon nanotube (CNT), carbon black (CB), carbon fber (CF), nickel powder (NP), and graphite powder (GP) are conductive materials that can help develop the SCC [11][12][13][14][15][16]. Both fber and powder materials can develop SCC to detect stress, strain, and damage in concrete structures under monotonic and cyclic loads [17].…”

Section: Introductionmentioning

confidence: 99%

Concurrent Prospects to Develop Activated Charcoal Reinforced Self-Sensing Cement Composites for Structural Health Monitoring Applications

Dinesh¹,

Suji

Pichumani

2023

Structural Control and Health Monitoring

Self Cite

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This research examines the electromechanical characteristics of self-sensing cement composite (SCC) containing activated charcoal (AC) at various concentrations (5%, 10%, 15%, 20%, and 25%). The developed composite is placed in various zones in the beam to monitor beam behaviour, as well as in the column center to monitor column deflection. The research reveals that AC reduced the compressive strength and resistivity of cement composites by generating local hydration and carbon accumulation. The performance index approach optimizes AC concentrations at 25% and 20% without and with 10% silica fume (SF), respectively. The embedded SCC has monitored the deflection of beams and columns with a maximum correlation between electrical resistivity and deflection at 99% and 96%, respectively. According to the findings, the AC can generate SCC, which might be utilized to monitor the deflection of beams and columns.

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Self-sensing Cementitious Composites for Monitoring Concrete Beams under Bending

Carísio,

Dos Santos,

Martins

et al. 2024

RILEM Bookseries

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Self-sensing cementitious composite sensor with integrated steel fiber and carbonaceous powder for real-time application in large-scale infrastructures

Cited by 19 publications

References 46 publications

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Performance of Self-Sensing Cement-Stabilized Sand under Various Loading Conditions

Concurrent Prospects to Develop Activated Charcoal Reinforced Self-Sensing Cement Composites for Structural Health Monitoring Applications

Self-sensing Cementitious Composites for Monitoring Concrete Beams under Bending

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