Development of a comprehensive methodology for the design and fabrication of carbon fiber integrated cement composite toward health monitoring of structural components

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

doi:10.1016/j.engstruct.2022.115453

Cited by 23 publications

(4 citation statements)

References 39 publications

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“…However, the ER increased by four to five times when the PE fiber content increased to 1.5 and 2.0 vol%. The electron tunneling ability among conductive carbon fibers was weakened by a large amount of non‐conductive PE fibers 35 . As far as doping carbon fiber, the ER reduced by 67% when the volume fraction of carbon fiber increased to 0.75 vol%.…”

Section: Resultsmentioning

confidence: 97%

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A study on HyFRCC consisting of PE and carbon fiber: Investigation of electrical and fracture properties based on orthogonal design

Zhu,

Shen,

Wei

2023

Structural Concrete

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Hybrid fiber‐reinforced cementitious composites (HyFRCC) consisting of polyethylene (PE) and carbon fiber (CF) have potential for use in advanced composite materials by integrating high mechanical performance with smart functions based on electrical properties. However, an evaluation of the electrical and fracture properties of HyFRCC has not yet been reported. An orthogonal experimental design was used to investigate the effect of the water‐to‐binder (w/b) ratio and volume fraction of PE and carbon fiber on the electrical properties and fracture behavior of HyFRCC in this paper. The results show that the w/b ratio plays a major role in controlling the electrical resistivity of HyFRCC. The larger the amount of hybrid fibers added, the higher the w/b ratio needed. In particular, the PE fiber must not exceed 1.5 vol% to obtain HyFRCC with low electrical resistivity. Carbon fiber has a significant effect on the initial fracture toughness of HyFRCC, while PE fiber determines its unstable fracture toughness. A hybrid fiber system containing 1.0 vol% PE fiber and 0.5 vol% carbon fiber at a w/b ratio of 0.35 was used to reach a compatible electrical property and fracture behavior of HyFRCC. The results of this work provide a novel approach for designing and developing multifunctional cementitious composites, which would be a promising building material for structural strengthening and protection of steel corrosion as well as structural health monitoring.

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Section: Resultsmentioning

confidence: 97%

“…The electron tunneling ability among conductive carbon fibers was weakened by a large amount of non-conductive PE fibers. 35 As far as doping carbon fiber, the ER reduced by 67% when the volume fraction of carbon fiber increased to 0.75 vol%. The higher the amount of conductive medium, the lower the ER.…”

Section: Analysis Of Electrical Resistivitymentioning

confidence: 97%

A study on HyFRCC consisting of PE and carbon fiber: Investigation of electrical and fracture properties based on orthogonal design

Zhu,

Shen,

Wei

2023

Structural Concrete

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“…The SSCM incorporated with nanomaterial possess multifunctional properties that are used appropriately in various field application such as to monitor high speed rail infrastructures, 130 in traffic detection, 233 , 234 smart pavements by weigh‐in‐motion (WIM) sensing 235 . In SHM application such as railway sleepers, 236 vibrations, 58 structure deformations, 237 dynamic load behavior, 238 aircraft structures, 239 self‐cleaning, 240 stress strain behavior of concrete, 28 and to monitor the performance of the RC beams 241 and beam‐column of large scale sub‐assemblage 242 . This paves the way for the application of self‐sensing sensors with high precision and easy installation in SHM to attain smart and sustainable infrastructures 243 .…”

Section: Application Of Sscm In Structural Elements For Shmmentioning

confidence: 99%

Smart cement‐sensor composite: The evolution of nanomaterial in developing sensor for structural integrity

Kanagasundaram

Elavenil

2023

Structural Concrete

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The integration of self‐sensing ability and different functional properties of nanomaterials into construction materials leads to smart and multifunctional cementitious sensor composites. Significant evolution of the Structural Health Monitoring (SHM) has helped to elevate the life span and mitigate damages of the structure. Developing smart cementitious sensor composite with electrical properties as a parent element and embedding it in the structural components have proved to be advantageous in terms of evaluating the damages, monitoring the periodic health and life assessment of the structures. In this review, the copious development processes and various methods of designing smart‐sensing cementitious composites have been scrutinized. This work recapitulates the principle of self‐sensing technique, typical functional fillers, trends of percolation threshold, dispersing material, dispersion technology, and also describes the required sensing ability of the sensors using the conduction theory. Subsequently application of smart cement‐sensors in structural components for SHM is discussed. In addition, this review article provides comprehensive information on the effects of nano materials and their dispersion in the development for smart and multifaceted cementitious sensor composites with enhanced sensitivity parameters and economic benefits that are suitable for future prospects.

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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

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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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Development of a comprehensive methodology for the design and fabrication of carbon fiber integrated cement composite toward health monitoring of structural components

Cited by 23 publications

References 39 publications

A study on HyFRCC consisting of PE and carbon fiber: Investigation of electrical and fracture properties based on orthogonal design

A study on HyFRCC consisting of PE and carbon fiber: Investigation of electrical and fracture properties based on orthogonal design

Smart cement‐sensor composite: The evolution of nanomaterial in developing sensor for structural integrity

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

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