Application of graphene-based materials in developing sustainable infrastructure: An overview

Badiei, Marzieh; Samsudin, Nurul Asma; Mohammad, Masita; Razali, Halim; Soltani, Soroush; Amin, Nur Azma

doi:10.1016/j.compositesb.2022.110188

Cited by 52 publications

(8 citation statements)

References 189 publications

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“…In contrast, the grafted oxygen functional groups in GO and rGO can reduce the van der Waals forces and increase the electrostatic repulsion between GO sheets, making dispersion easier. This enhanced dispersion of GO has been exploited by several studies, demonstrating that even small amounts of GO, used as an additive, can improve both early- and later-age properties of cementitious materials; ,− even though the use of GNPs has also been reported. − As expected, the reinforcing efficiency of graphene (GNP, GO, or rGO) in cementitious mixtures is influenced by graphene’s physicochemical characteristics (sheet size, oxygen content, functional group, layer thickness, and number of layers) and its properties (tensile strength and Young’s modulus), along with the characteristics of the mixture components and the preparation method of GO–cement composites. − By and large, properly proportioned cementitious materials, containing a small amount of graphene, demonstrate superior mechanical and durability properties. − …”

Section: Introductionmentioning

confidence: 86%

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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Section: Introductionmentioning

confidence: 86%

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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“…Currently, the focus of researchers is shifting towards the use of recycled polymers such as low-density polyethylene (LDPE) and high-density polyethylene (HDPE) [14,15], polyethylene terephthalate (PET) [16], and polystyrene (PS) [17]. At the same time, attempts are being made to give new life to materials typically destined for landfill or waste-to-energy processes, such as crumb rubber obtained from end-of-life tires [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Modified Asphalt with Graphene-Enhanced Polymeric Compound: A Case Study

Bruno,

Carpani,

Loprencipe

et al. 2024

Infrastructures

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In recent years, the increased use of heavy commercial vehicles with higher axle weights has required the development of innovative technologies to improve the mechanical properties of asphalt concrete conglomerates, such as fatigue resistance and rutting. This study offers a comprehensive comparative analysis of different types of asphalt concrete tested in four trial sections (S1, S2, S3, S4) of the SP3 Ardeatina rural road in Rome, under actual traffic and operational conditions. More precisely, the pavement technologies applied include modified asphalt concrete with graphene and recycled hard plastics for S1, asphalt concrete modified with styrene–butadiene–styrene (SBS) for S2, asphalt concrete with a standard polymeric compound for S3, and traditional asphalt concrete for S4. The evaluation approach involved visual inspections in order to calculate the pavement condition index (PCI) and falling weight deflectometer (FWD) tests. In addition, back-calculation analyses were performed using ELMOD software to assess the mechanical properties. The laboratory tests revealed superior properties of M1 in terms of its resistance to permanent deformations (+13%, +15%, and +19.5% compared to M2, M3, and M4, respectively) and stiffness (10,758 MPa for M1 vs. 9259 MPa, 7643 MPa, and 7289 MPa for M2, M3, and M4, respectively). These findings were further corroborated by the PCI values (PCIS1 = 65; PCIS2 = 17; PCIS3 = 28; PCIS4 = 29) as well as the FWD test results after 5 years of investigation, which suggests greater durability and resistance than the other sections.

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“…They are easier and cheaper [3] to produce in large quantities compared to other particles. GNPs have been studied in various fields such as electrical and thermal conductivity [4] and mechanical properties [5,6] and applied to many branches of the field including transportation [7] and construction [8].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of flexural modulus and strength of epoxy nanocomposites with the inclusion of functionalized GNPs using Tween 80

Halim,

Junid,

Sazali

et al. 2024

J. Eng. Appl. Sci.

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In this work, epoxy nanocomposite was prepared with the inclusion of unfunctionalized as-received GNPs (ARGNPs) and functionalized GNPs using surfactant Tween 80 (T80GNPs) in the epoxy resin using a mechanical stirrer. ARGNPs were used as it is, while T80GNPs were prepared through the adsorption of surfactant onto GNPs’ surface using a sonication procedure in an ultrasonic bath. Characterization of nanoparticles using SEM shows that ARGNPs indicated a softer image representing a thinner layer of graphene stacks compared to T80GNP which has a tangible solid-looking image resulting from the sedimentation during the process of filtration. Elementally, both ARGNPs and T80GNPs were found to contain carbon, oxygen, and sulfur, as indicated by the EDX spectrum, with the C/O ratio for T80GNPs being 34.7% higher than that for ARGNPs, suggesting the adsorption of Tween 80 molecules on the GNPs after functionalization. FTIR spectroscopy confirms the attachment of Tween 80 molecules on GNPs surface with T80GNPs spectrum indicated higher peak intensity than ARGNPs. Flexural testing demonstrated that the addition of 0.9 wt.% ARGNPs and 0.9 wt.% T80GNPs to the epoxy increased the modulus of the nanocomposites to 72.1% and 82.6%, respectively, relative to neat epoxy. With the same amount of particle content, both nanocomposites showed increased strength, with ARGNPs and T80GNPs exhibiting strengths of 70.5% and 87.8%, respectively, relative to neat epoxy.

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Application of graphene-based materials in developing sustainable infrastructure: An overview

Cited by 52 publications

References 189 publications

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

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

Modified Asphalt with Graphene-Enhanced Polymeric Compound: A Case Study

Enhancement of flexural modulus and strength of epoxy nanocomposites with the inclusion of functionalized GNPs using Tween 80

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