Utilizing graphene oxide in cementitious composites: A systematic review

Murali, M.; Alaloul, Wesam Salah; Mohammed, Bashar S.; Musarat, Muhammad Ali; Salaheen, Marsail Al; Al-Sabaeei, Abdulnaser M.; Abdulkadir, Isyaka

doi:10.1016/j.cscm.2022.e01359

Cited by 9 publications

(7 citation statements)

References 126 publications

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“…For instance, adding a small percentage of graphene oxide to a cement-based composite enhances flexural and compressive strength by 50% and 28%, respectively [29]. Multiple authors obtain similar claims reported in the following references [30][31][32][33]. The increase in the mechanical properties is because graphene oxide is considered a seeding nanomaterial for the growth of C-S-H, thereby producing more C-S-H in the composite [8].…”

Section: Introductionmentioning

confidence: 57%

On the nanoscale interface, electronic structure, and optical properties of nanocarbon-reinforced calcium silicate hydrates

Munio,

Domato,

Pido

et al. 2023

Phys. Scr.

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This study presents results from quantum chemical simulations of the synergetic interaction, electronic structure, and optical properties of calcium-silicate hydrates (C-S-H) reinforced by graphene-nanoribbons and single-walled carbon nanotubes (SWCNT). The calculations show that C-S-H/graphene-nanoribbon and C-S-H/SWCNT composites are stabilized by electrostatic interaction due to the charge transfer from Ca ions at the interface of C-S-H to the nearby C atoms of the graphene-nanoribbon and SWCNT. Removing Ca ions at the interface drastically decreases the strength of interaction into a weak van der Waals type. The Bader charge transfer analysis and electron distribution topology further confirm these results. Generally, the electronic states of the graphene-nanoribbon and SWCNT are shifted to lower energy in the complex. The electronic structure of graphene-nanoribbon and SWCNT is susceptible to the Ca ions-rich C-S-H environment. The composites’ overall absorption spectra can be considered superimposed of the isolated nanocarbon and C-S-H except in the lower energy region due to charge transfer and realignment of energy states. The results presented here reveal the bonding mechanism of the C-S-H with nanocarbon at the fundamental level. This work serves as a reference for the nanoengineering cement-based material with nanocarbon for the next-generation smart infrastructure.

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Section: Introductionmentioning

confidence: 57%

On the nanoscale interface, electronic structure, and optical properties of nanocarbon-reinforced calcium silicate hydrates

Munio,

Domato,

Pido

et al. 2023

Phys. Scr.

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“…For instance, combining a small percentage of graphene oxide into a calcium silicate hydrate (C-S-H) matrix enhances flexural and compressive strength by 50% and 28% [59]. Several papers obtained similar conclusions communicated in the following works [60][61][62][63]. The improvement in the macroscopic mechanical properties is attributed to the nanomaterials, which served as a seeding nanomaterial for the growth of C-S-H, thus producing more C-S-H in the composite [64].…”

Section: Introductionmentioning

confidence: 67%

Insights on the Bonding Mechanism, Electronic and Optical Properties of Diamond Nanothread—Polymer and Cement—Boron Nitride Nanotube Composites

Domato,

Munio,

Jacosalem

et al. 2024

Preprint

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The success of composite materials is attributed to the nature of bonding at the nanoscale and the resulting structure-related properties. This study reports the interaction, electronic, and optical properties of diamond nanothread/polymers (cellulose and epoxy) and boron nitride nanotube/calcium silicate hydrate composites using density functional theory modeling. Our findings indicate that the interaction between the nanothread and polymer is due to van der Waals-type bonding. Minor modifications in the electronic structures and absorption spectra are noticed. Conversely, the boron nitride nanotube and calcium silicate hydrate composite display an electron-shared type of interaction. The electronic structure and optical absorption spectra of the diamond nanothread and boron nitride nanotube in all configurations studied in the aforementioned composite systems are well maintained. Our findings offer an electronic-level perspective into the bonding characteristics and electronic-optical properties of diamond nanothread/polymer and boron nitride nanotube/calcium silicate hydrate composites for developing next-generation materials.

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“…The dimensions of FG produced by detonation synthesis are much smaller than those of GOs and GNPs, which is typically on the order of 100 nm . Experimental specific surface area (SSA) of graphene is determined to be ∼200 m 2 g –1 , which is an order of magnitude lower than the theoretical SSA of 2630 m 2 g –1 for isolated graphene sheets − obtained under a rigorous dispersion scheme (e.g., ultrasonication).…”

Section: Graphene Production and Its Characteristicsmentioning

confidence: 80%

New Generation Graphenes in Cement-Based Materials: Production, Property Enhancement, and Life Cycle Analysis

Surehali,

Volaity,

Simon

et al. 2024

ACS Sustainable Chem. Eng.

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Several studies have explored the use of graphene to improve the properties of cement-based materials. However, most commercially available graphenes are expensive, not amenable to mass production, and have high embodied energy and emissions, making their use in concrete less attractive, despite the beneficial mechanical property attributes. This paper discusses the use of two novel graphene types, fractal graphene (FG) and reactive graphene (RG), obtained through a cost-effective and scalable detonation synthesis, in cement-based materials. FG and RG are sheets containing 6–10 layers, with lateral dimensions of 20–50 nm and a z-axis thickness of <5 nm. RG is functionalized with carboxylic groups. An ultrasonication process is employed to ensure dispersion of graphene particles in aqueous solutions. Both FG and RG, when added at very small dosages (≤0.04% by mass of cement), enhance the compressive strength of cement mortars by >70% at early ages and up to 20% at later ages. The beneficial effect of functionalization results in better performance for RG-modified mixtures, even at dosages as low as 0.02%. Concomitant enhancements in heat of hydration, hydrate formation, and rheological response are observed. A significant reduction in porosity and critical pore size (by 50% or more) promises significantly improved concrete durability, and thus reduced life-cycle costs. A comparative life cycle analysis (LCA) is used to show that FG- and RG-modified mortars have normalized (by the 28 d strength) energy demand and global warming potential (GWP) that is up to 15% lower than those of conventional mortars. Overall, this study shows that FG and RG, manufactured through a scalable, cost-, energy-, and CO2-efficient detonation synthesis, can beneficially impact the engineering and environmental performance of concretes.

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Utilizing graphene oxide in cementitious composites: A systematic review

Cited by 9 publications

References 126 publications

On the nanoscale interface, electronic structure, and optical properties of nanocarbon-reinforced calcium silicate hydrates

On the nanoscale interface, electronic structure, and optical properties of nanocarbon-reinforced calcium silicate hydrates

Insights on the Bonding Mechanism, Electronic and Optical Properties of Diamond Nanothread—Polymer and Cement—Boron Nitride Nanotube Composites

New Generation Graphenes in Cement-Based Materials: Production, Property Enhancement, and Life Cycle Analysis

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