Assessing the potential of nano-reinforced blended lime-cement pastes as self-sensing materials for restoration applications

Dimou, Angeliki-Eirini; Metaxa, Zoi S.; Alexopoulos, Nikolaos D.; Kourkoulis, Stavros K.

doi:10.1016/j.matpr.2022.02.623

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…[153,155] Further work from Dimou et al showed no significant changes in the flexural strength due to the addition of GO, but an improvement in the compressive strength, which was reported to increase by 20-30% compared with the reference mortar. [156][157][158] Besides investigating these properties, Dorin et al proved that GO addition only slightly improves the adhesion of the modified mortar. In these studies on the influence of GO on the performance of natural hydraulic mortars, different concentrations of GO in different physical forms (aqueous dispersions or powder) have been tested.…”

Section: Loss Of Structural Integritymentioning

confidence: 99%

“…showed no significant changes in the flexural strength due to the addition of GO, but an improvement in the compressive strength, which was reported to increase by 20–30% compared with the reference mortar. [ 156–158 ] Besides investigating these properties, Dorin et al. proved that GO addition only slightly improves the adhesion of the modified mortar.…”

Section: Applications In Cultural Heritagementioning

confidence: 99%

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Present Status and Perspectives of Graphene and Graphene‐related Materials in Cultural Heritage

Galvagno,

Tartaglia,

Stratigaki

et al. 2024

Adv Funct Materials

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Cultural heritage faces recurring degradation processes and natural aging phenomena, demanding the envisioning of innovative preservation solutions inspired by cutting‐edge scientific research. Over extended time frames, current preservation strategies often prove inadequate in preserving the different constituent materials of cultural assets, which are thus threatened by their inherent fragility and by the complex interactions with the surrounding environment. The distinctive properties of graphene and graphene‐related materials (GRMs) now offer unexplored opportunities in the field of cultural heritage, addressing various forms of deterioration phenomena. This work critically analyzes early‐stage literature on the use of graphene and GRMs. Strengths, weaknesses, and limitations in anti‐corrosion, anti‐fading, and consolidation properties of graphene and GRMs are thoroughly investigated, along with their possible applications in smart sensors to monitor the state of health of endangered artifacts. The aim is to elucidate how specific characteristics of graphene and GRMs can be applied to the conservation, diagnostics, and monitoring of artistic and archaeological assets. Future perspectives in the design of stable, long‐lasting, and compatible graphene‐based solutions for cultural heritage protection are highlighted, providing a detailed discussion on potentials and pitfalls.

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Section: Loss Of Structural Integritymentioning

confidence: 99%

Section: Applications In Cultural Heritagementioning

confidence: 99%

Present Status and Perspectives of Graphene and Graphene‐related Materials in Cultural Heritage

Galvagno,

Tartaglia,

Stratigaki

et al. 2024

Adv Funct Materials

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A critical review of electrical-resistance-based self-sensing in conductive cement-based materials

Chung¹

2023

Carbon

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A Review of Self-Sensing in Carbon Fiber Structural Composite Materials

Chung

2023

World Sci. Ann. Rev. Funct. Mater.

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Sensing is a basic ability of smart structures. Self-sensing involves the structural material sensing itself. No device incorporation is needed, thus resulting in cost reduction, durability enhancement, sensing volume increase and absence of mechanical property diminution. Carbon fiber renders electrical conductivity to a composite material. The effect of strain/damage on the electrical conductivity enables self-sensing. This review addresses self-sensing in structural composite materials that contain carbon fiber reinforcement. The composites include polymer-matrix composites with continuous carbon fiber reinforcement (relevant to aircraft and other lightweight structures) and cement–matrix composites with short carbon fiber reinforcement (relevant to the civil infrastructure). The sensing mechanisms differ for these two types of composite materials, due to the difference in structures, which affects the electrical and electromechanical behaviors. For the polymer–matrix composites with continuous carbon fiber reinforcement, the longitudinal resistivity in the fiber direction decreases upon uniaxial tension, due to the fiber residual compressive stress reduction, while the through-thickness resistivity increases, due to the fiber waviness reduction; upon flexure, the tension surface resistance increases, because of the reduction in the current penetration from the surface, while the compression surface resistance decreases. These strain effects are reversible. The through-thickness resistance, oblique resistance and interlaminar interfacial resistivity increase irreversibly upon fiber fracture, delamination or subtle irreversible change in the microstructure. For the cement–matrix composites with short carbon fiber reinforcement, the resistivity increases upon tension, due to the fiber–matrix interface weakening, and decreases upon compression; upon flexure, the tension surface resistance increases, while the compression surface resistance decreases. Strain and damage cause reversible and irreversible resistance changes, respectively. The incorporation of carbon nanofiber or nanotube to these composites adds to the costs, while the sensing performance is improved marginally, if any. The self-sensing involves resistance or capacitance measurement. Strain and damage cause reversible and irreversible capacitance changes, respectively. The fringing electric field that bows out of the coplanar electrodes serves as a probe, with the capacitance decreased when the fringing field encounters an imperfection. For the cement-based materials, a conductive admixture is not required for capacitance-based self-sensing.

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Assessing the potential of nano-reinforced blended lime-cement pastes as self-sensing materials for restoration applications

Cited by 3 publications

References 17 publications

Present Status and Perspectives of Graphene and Graphene‐related Materials in Cultural Heritage

Present Status and Perspectives of Graphene and Graphene‐related Materials in Cultural Heritage

A critical review of electrical-resistance-based self-sensing in conductive cement-based materials

A Review of Self-Sensing in Carbon Fiber Structural Composite Materials

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