Studies on mechanical properties and durability of steel fiber reinforced concrete incorporating graphene oxide

Liu, Chang Jiang; Hunag, Xiao Chuan; Wu, Yuyou; Deng, Xiaowei; Zheng, Zhou; Yang, Bo

doi:10.1016/j.cemconcomp.2022.104508

Cited by 48 publications

(17 citation statements)

References 35 publications

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“…Compared with P‐SA, the porous structure of P‐ATP/SA is denser (Figure 2F). It is attributed to the fact that ATP akin to reinforcing bars in concrete, thus enhancing the stability of P‐SA's 3D structure 34 . Figure S1 (see in the Supplementary Materials) highlights ATP's nano‐scale rod‐like structure.…”

Section: Resultsmentioning

confidence: 99%

“…It is attributed to the fact that ATP akin to reinforcing bars in concrete, thus enhancing the stability of P-SA's 3D structure. 34 Figure S1 (see in the Supplementary Materials) highlights ATP's nano-scale rod-like structure. Meanwhile, due to the addition of ATP, the surface of the aerogel becomes rougher and irregular clusters with non-uniform distribution appear.…”

Section: Photothermal and Joule Heating Performancementioning

confidence: 99%

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Optimizing cleanup of highly viscous oil spills: A biomass‐based aerogel with photothermal conversion and joule heating for a dual‐energy absorption device

Zhang,

et al. 2024

Polymers for Advanced Techs

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The frequent occurrences of offshore oil spills have led to severe environmental contamination and ecological threats. However, traditional recovery methods pose issues such as high‐energy consumption, low absorption efficiency and secondary pollution. This work prepared a hydrophobic aerogel (P‐GO@CNTs‐9/ATP/SA) using sodium alginate, attapulgite and graphene oxide surface‐modified carbon nanotubes with superior solar/Joule heating ability. The water contact angle of this aerogel is approximately 147.5°. Moreover, this aerogel demonstrates stable and efficient photothermal conversion properties, reaching a surface temperature of 82.3 °C under one solar illumination (1 kW/m2). Furthermore, when applying a voltage of 10 V, the surface temperature of the P‐GO@CNTs‐9/ATP/SA aerogel reaches 170.4 °C, assisting photothermal conversion to enhance the fluidity of viscous oil, thereby conserving energy. Finally, we present a continuous absorption device utilizing P‐GO@CNTs‐9/ATP/SA as the primary component, enabling automatic switching between photothermal and electrothermal modes for the comprehensive and continuous treatment of oil spills. Due to the unique design, environmental friendliness and ideal absorption capacity, this approach offers a novel choice for recovery of oil spills, which is expected to further promote principles of sustainable development.

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Section: Resultsmentioning

confidence: 99%

Section: Photothermal and Joule Heating Performancementioning

confidence: 99%

Optimizing cleanup of highly viscous oil spills: A biomass‐based aerogel with photothermal conversion and joule heating for a dual‐energy absorption device

Zhang,

et al. 2024

Polymers for Advanced Techs

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“…When chlorides penetrate the concrete cover externally, they tend to be adsorbed into the main cement hydration product, calcium silicate hydrate (CSH), owing to their positive surface charge. The surface charge of CSH is primarily governed by the segregation of cementitious phases, the adsorption of ions, and the charge associated with the significantly high Ca 2+ ions present in the pore solution [67,68]. When chloride ions penetrate the concrete, a percentage of them are bound, whilst the remaining free chloride ions passage through the pore solution with the aid of different transport mechanisms.…”

Section: Chloride-binding Mechanismsmentioning

confidence: 99%

Effect of Graphene Oxide Nanomaterials on the Durability of Concrete: A Review on Mechanisms, Provisions, Challenges, and Future Prospects

Udumulla,

Ginigaddara,

Jayasinghe

et al. 2024

Materials

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This review focuses on recent advances in concrete durability using graphene oxide (GO) as a nanomaterial additive, with a goal to fill the gap between concrete technology, chemical interactions, and concrete durability, whilst providing insights for the adaptation of GO as an additive in concrete construction. An overview of concrete durability applications, key durability failure mechanisms of concrete, transportation mechanisms, chemical reactions involved in compromising durability, and the chemical alterations within a concrete system are discussed to understand how they impact the overall durability of concrete. The existing literature on the durability and chemical resistance of GO-reinforced concrete and mortar was reviewed and summarized. The impacts of nano-additives on the durability of concrete and its mechanisms are thoroughly discussed, particularly focusing on GO as the primary nanomaterial and its impact on durability. Finally, research gaps, future recommendations, and challenges related to the durability of mass-scale GO applications are presented.

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“…Moreover, 0.03 wt.% of graphene oxide was found to be the optimum amount for improving the concrete's resistance to chloride. The chloride ion resistance of graphene oxide-modified, steel fibre-reinforced concrete is illustrated in Figure 12 [109]. Zhang et al [110] evaluated the durability of marine concrete doped with nanoparticles.…”

Section: Chloride Ion Penetration Of Concrete Enhanced With Nanomater...mentioning

confidence: 99%

“…Figure 12. The chloride ion resistance of graphene oxide-modified, steel fibre-reinforced concrete.Reproduced with permission from[109], (Cement and Concrete Composites); published by (Elsevier), (2022) (Note: SFRC: 0% graphene oxide, GOSFR-1: 0.01%wt. graphene oxide, GOSFRC-3: 0.03 wt.%, GOSFRC-5: 0.05 wt.%, GOSFRC: 0.07% graphene oxide).…”

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confidence: 99%

An Elucidative Review of the Nanomaterial Effect on the Durability and Calcium-Silicate-Hydrate (C-S-H) Gel Development of Concrete

Al-saffar,

Wong,

Paul

2023

Gels

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Concrete as a building material is susceptible to degradation by environmental threats such as thermal diffusion, acid and sulphate infiltration, and chloride penetration. Hence, the inclusion of nanomaterials in concrete has a positive effect in terms of promoting its mechanical strength and durability performance, as well as resulting in energy savings due to reduced cement consumption in concrete production. This review article discussed the novel advances in research regarding C-S-H gel promotion and concrete durability improvement using nanomaterials. Basically, this review deals with topics relevant to the influence of nanomaterials on concrete’s resistance to heat, acid, sulphate, chlorides, and wear deterioration, as well as the impact on concrete microstructure and chemical bonding. The significance of this review is a critical discussion on the cementation mechanism of nanoparticles in enhancing durability properties owing to their nanofiller effect, pozzolanic reactivity, and nucleation effect. The utilization of nanoparticles enhanced the hydrolysis of cement, leading to a rise in the production of C-S-H gel. Consequently, this improvement in concrete microstructure led to a reduction in the number of capillary pores and pore connectivity, thereby improving the concrete’s water resistance. Microstructural and chemical evidence obtained using SEM and XRD indicated that nanomaterials facilitated the formation of cement gel either by reacting pozzolanically with portlandite to generate more C-S-H gel or by functioning as nucleation sites. Due to an increased rate of C-S-H gel formation, concrete enhanced with nanoparticles exhibited greater durability against heat damage, external attack by acids and sulphates, chloride diffusion, and surface abrasion. The durability improvement following nanomaterial incorporation into concrete can be summarised as enhanced residual mechanical strength, reduced concrete mass loss, reduced diffusion coefficients for thermal and chloride, improved performance against sulphates and acid attack, and increased surface resistance to abrasion.

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Studies on mechanical properties and durability of steel fiber reinforced concrete incorporating graphene oxide

Cited by 48 publications

References 35 publications

Optimizing cleanup of highly viscous oil spills: A biomass‐based aerogel with photothermal conversion and joule heating for a dual‐energy absorption device

Optimizing cleanup of highly viscous oil spills: A biomass‐based aerogel with photothermal conversion and joule heating for a dual‐energy absorption device

Effect of Graphene Oxide Nanomaterials on the Durability of Concrete: A Review on Mechanisms, Provisions, Challenges, and Future Prospects

An Elucidative Review of the Nanomaterial Effect on the Durability and Calcium-Silicate-Hydrate (C-S-H) Gel Development of Concrete

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