Experimental investigation for the influence of graphene oxide on properties of the cement-waste concrete powder composite

Sui, Yuwu; Liu, Shu; Ou, Chuping; Liu, Qinlei; Meng, Guanming

doi:10.1016/j.conbuildmat.2020.122229

Cited by 28 publications

(4 citation statements)

References 24 publications

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“…The mini flow table test is a widely adopted method for determining the workability of fresh cementitious pastes. This test is carried out to study the effect of colloidal Nano silica, GO and FA on cement-based composites [33][34]. To examine the fluidity of the cement composites, a mini slump cone with the following dimensions is used: 57 mm in height, 38 mm in bottom diameter, and 19 mm in top diameter.…”

Section: Fluidity Of Cement Pastementioning

confidence: 99%

Synergistic effect of graphene oxide and coloidalnano-silica on the microstructure and strength properties of fly ash blended cement composites

Subramani,

Ganesan

2024

Matéria (Rio J.)

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Cement concretes are widely used and very effective in the construction industry. Micro-scale problems such as porosity, micro-cracks, etc. Many researchers have done research work globally to address this issue. This research investigation also addresses this by using colloidal nano-silica along with Graphene oxide (GO) particles in fly ash-based cement compounds. The change in the behaviour of cement matrix experimentally observed with 10% replacement of FA with cement, 2.5% replacement of Nano-silica with cement, and GO of variable dosage in this research investigation, GO as additive of dosages 0.02%, 0.03%, 0.04%, 0.05%, and 0.06% by mass of cement has been used. GO and Nano-silica were sonicated for 30 minutes to get uniform dispersion of nanoparticles. The material characterization and cement blended composite characterization has been performed using Energy-dispersive X-ray analysis, Scanning Electron Microscopy, X-Ray diffraction, and Fourier transform infrared tests. From the Test results, it is found that the addition of 0.03% of GO is the optimum dosage of the cement composites. It is observed that GO+NS with FA affects the overall hydration process of the cement composites. GO, and NS fills the pores, causing a reduction in pore volume and promoting the more compact and dense microstructure.

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Section: Fluidity Of Cement Pastementioning

confidence: 99%

Synergistic effect of graphene oxide and coloidalnano-silica on the microstructure and strength properties of fly ash blended cement composites

Subramani,

Ganesan

2024

Matéria (Rio J.)

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“…Therefore, it is economically and technically feasible for the addition of GO to strengthen the performance of concrete. In general, the mechanism through which GO enhances concrete performance is currently in an intense exploration stage, and two strongly supportive theories are emphasized as follows: (1) the formation of flower-like crystals to regulate hydration reaction [ 28 ]; (2) the provision of nanoscale filling to enhance compactness [ 29 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Graphene Oxide on the Mechanical Properties and Durability of High-Strength Lightweight Concrete Containing Shale Ceramsite

Hong

Lee

et al. 2023

Materials

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An effective pathway to achieve the sustainable development of resources and environmental protection is to utilize shale ceramsite (SC), which is processed from shale spoil to produce high-strength lightweight concrete (HSLWC). Furthermore, the urgent demand for better performance of HSLWC has stimulated active research on graphene oxide (GO) in strengthening mechanical properties and durability. This study was an effort to investigate the effect of different contents of GO on HSLWC manufactured from SC. For this purpose, six mixtures containing GO in the range of 0–0.08% (by weight of cement) were systematically designed to test the mechanical properties (compressive strength, flexural strength, and splitting tensile strength), durability (chloride penetration resistance, freezing–thawing resistance, and sulfate attack resistance), and microstructure. The experimental results showed that the optimum amount of 0.05% GO can maximize the compressive strength, flexural strength, and splitting tensile strength by 20.1%, 34.3%, and 24.2%, respectively, and exhibited excellent chloride penetration resistance, freezing–thawing resistance, and sulfate attack resistance. Note that when the addition of GO was relatively high, the performance improvement in HSLWC as attenuated instead. Therefore, based on the comprehensive analysis of microstructure, the optimal addition level of GO to achieve the best mechanical properties and durability of HSLWC is considered to be 0.05%. These findings can provide a new method for the use of SC in engineering.

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“…With the rapid development of nanomaterial science, researchers have used nanomaterials combined with industrial solid waste materials (such as fly ash [ 6 ], plastic [ 7 ], waste glass [ 8 ], etc.) to replace a portion of cement in concrete.…”

Section: Introductionmentioning

confidence: 99%

Recent Progress of Cement-Based Materials Modified by Graphene and Its Derivatives

Zhao

Zhang

2023

Materials

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Graphene, with its excellent properties and unique structure, has been extensively studied in the context of modifiable cement-based materials. However, a systematic summary of the status of numerous experimental results and applications is lacking. Therefore, this paper reviews the graphene materials that improve the properties of cement-based materials, including workability, mechanical properties, and durability. The influence of graphene material properties, mass ratio, and curing time on the mechanical properties and durability of concrete is discussed. Furthermore, graphene’s applications in improving interfacial adhesion, enhancing electrical and thermal conductivity of concrete, absorbing heavy metal ions, and collecting building energy are introduced. Finally, the existing issues in current study are analyzed, and the future development trends are foreseen.

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Experimental investigation for the influence of graphene oxide on properties of the cement-waste concrete powder composite

Cited by 28 publications

References 24 publications

Synergistic effect of graphene oxide and coloidalnano-silica on the microstructure and strength properties of fly ash blended cement composites

Synergistic effect of graphene oxide and coloidalnano-silica on the microstructure and strength properties of fly ash blended cement composites

Effect of Graphene Oxide on the Mechanical Properties and Durability of High-Strength Lightweight Concrete Containing Shale Ceramsite

Recent Progress of Cement-Based Materials Modified by Graphene and Its Derivatives

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