Electrical percolation and fluidity of conductive recycled mortar cement: graphite powder: recycled sand with addition of industrial waste carbon fiber

Espinoza-Moreno, C. A.; Rodríguez-Rodríguez, Margarita; Pellegrini-Cervantes, Manuel J.; Barrios-Durstewitz, C.P.; Núñez-Jáquez, R. E.; Peinado-Guevara, Héctor José; Chinchillas-Chinchillas, Manuel J.; Fajardo-San-Miguel, G.

doi:10.1007/s42823-020-00188-0

Cited by 14 publications

(3 citation statements)

References 34 publications

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“…It is attributed to more contact points: the conductive PP fiber is more likely to generate contact points than the conductive CB nanoparticles, as shown in Figure 23. e same is true for other types of fibers [127].…”

Section: Field Response Mechanismmentioning

confidence: 55%

Research Progress in Environmental Response of Fiber Concrete and Its Functional Mechanisms

Lei

Zhao

et al. 2022

Advances in Materials Science and Engineering

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Smart fiber reinforced concretes (FRC) are good in intelligent environmental response. With the smart FRC being used in buildings such as bridges and tunnels, the real-time online distributed monitoring of concrete state can be realized. It provides an excellent solution to reduce the emergencies caused by the accumulation of damages, resistance attenuation, etc. This paper analyzes smart FRC’s self-sensing and self-healing response characteristics under different environmental response fields. Furthermore, the intelligent response mechanism of smart carbon fiber reinforced concrete (CFRC), optical fiber reinforced concrete (OFRC), glass fiber reinforced concrete (GFRC), and nanofiber reinforced concrete (NFRC) would be summarized. The response fields include the stress field, temperature field, electromagnetic field, chemical field, and humidity field, among which the field response mechanism of smart NFRC is classified and summarized. Finally, the advantages and disadvantages, the intelligent response parameters, and the applications of smart FRC under different environmental fields are compared.

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Section: Field Response Mechanismmentioning

confidence: 55%

Research Progress in Environmental Response of Fiber Concrete and Its Functional Mechanisms

Lei

Zhao

et al. 2022

Advances in Materials Science and Engineering

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“…However, the addition of an appropriate number of nanofibers can improve the mechanical properties of concrete [51]. In some experiments, the addition of nanomaterials has no significant effect on the working performance, but some experimental studies have shown that due to the large surface area of nanomaterials, it is easy to cause a decrease of effective water-binder ratio, which leads to the decrease of cement workability [52]. Some experiments have reported the addition of modifiers to reduce the effect of graphite on performance [53].…”

Section: Effect Of Conductive Materials On Other Propertiesmentioning

confidence: 99%

Review of Research on Conductive Cement-Based Material

Li,

Tier

2023

AEF

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The conductivity of cement-based materials is usually poor, and this material is not a common conductive material. However, with the rapid development of Internet of Things technology in recent years, the rise of smart cities has brought more and more opportunities and needs, and conductive cement-based materials have emerged. Conductive cement-based material is a new type of composite material. The conductive material is added to the cement-based material to reduce its resistance and enhance the conductive properties of the material. The material can not only be applied to the construction of smart cities, such as smart street lamps and smart roads but also can be widely used in buildings, public transportation, and other fields. In the study of conductive cement-based materials, the size and shape of conductive materials have a direct impact on the electrical conductivity of cement-based materials. This is because the dispersion of the conductive material has a significant effect on the conductivity, and the size and shape of the conductive material can determine its dispersion. Secondly, in the application environment of cement-based materials, factors such as humidity and cracks may affect electrical conductivity. Therefore, to ensure the stability and reliability of conductive cement-based materials, a large number of experimental studies are needed to optimize the dispersion and shape of conductive materials and to understand the performance of materials in different environments. The research of conductive cement-based materials is of great significance to the construction of smart cities in the future. This conductive material has great application prospects, which can not only improve the intelligent level of urban infrastructure but also bring more social and economic benefits.

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“…Wang et al [ 33 ] integrated graphite and carbon fiber into cement, resulting in a maximum absorption peak (with the reflectivity of −5.67 dB) within the 12.5–18 GHz frequency range. Espinoza et al found that in the presence of graphite powder, the electrical conductivity is determined by the simultaneous contact between the carbon fibers and the graphite powder, forming a conductive path with enhanced conductivity properties [ 34 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of a novel foamed concrete modified with carbon fiber and graphite: Mechanical, electro-magnetic and microstructural characteristics based on X-CT

Tu,

Xia,

et al. 2024

Heliyon

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Electrical percolation and fluidity of conductive recycled mortar cement: graphite powder: recycled sand with addition of industrial waste carbon fiber

Cited by 14 publications

References 34 publications

Research Progress in Environmental Response of Fiber Concrete and Its Functional Mechanisms

Research Progress in Environmental Response of Fiber Concrete and Its Functional Mechanisms

Review of Research on Conductive Cement-Based Material

Preparation of a novel foamed concrete modified with carbon fiber and graphite: Mechanical, electro-magnetic and microstructural characteristics based on X-CT

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