Graphene oxide as nano-material in developing sustainable concrete – A brief review

Akarsh, P.K.; Marathe, Shriram; Bhat, Arun Kumar

doi:10.1016/j.matpr.2021.12.510

Cited by 22 publications

(10 citation statements)

References 73 publications

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“…Therefore, to limit the content of C 3 A and C 3 S is one of the most effective methods for improving the durability of concrete when subjected to sulfate attack. The pozzolanic activity of NS can reduce the calcium hydroxide content during the C 3 S and C 2 S hydration, then limit the ettringite formation [ 23 , 34 ]. On the other hand, the filling effect of pozzolanic activity of NS can also decrease the permeability of concrete and mitigate the microstructure damage in front of sulfate attack [ 38 , 39 , 40 ].…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, the micro-surface of high content of NC (3–9%) was rougher than that in 1%, and delayed the compressive strength, with the effect augmented over time [ 3 ]. Generally, such a high content of nanomaterial-induced reductions are attributed to the agglomeration of nanoparticles as, due to the high inter-particle van der Waal’s forces, the relatively high content of nanoparticles were prone to agglomerate [ 22 , 26 , 34 ]. Hou et al observed more un-hydrated cement particles in mortar containing 5% colloidal NS than that of 2.25% [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of High Performance Concrete Mixed with Nano-Silica in Front of Sulfate Attack

Nie

et al. 2022

Materials

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Nano-silica (NS) is an effective material to improve the strength and durability of high-performance concrete (HPC), but little information is available regarding its role in HPC response to long-term sulfate attack. In this study, six different dosages of NS (0%, 1%, 2%, 3%, 4%, and 5%) as cement partial replacement were mixed into HPC and the casted specimens were soaked in sulfate solution for different periods (0, 100, 200, and 300 days). The mass change, dynamic elastic modulus, compressive and splitting strength, microstructure morphology, and porosity characteristics of HPC specimens were measured by mass tests, mechanical properties tests, scanning electron microscopy (SEM), and nuclear magnetic resonance (NMR) tests. The results showed that the incorporation of NS decreased the mass loss, elevated the compressive and splitting strength, and reduced the porosity formation of HPC in front of sulfate attack. The percentage of 1% NS was among the most effective dosages as, after soaking for 300 days, it decreased the mass loss by 13.5%, elevated the elastic modulus as well as compressive and splitting strength by 50.4%, 31.7%, and 69.8% in comparison of unmodified HPC, respectively. The sulfate attack resistance was delayed in a higher (2–5%) mixed dosage, mainly due to the agglomeration of nano particles, especially after long-term reactions. This study can provide experimental references regarding the performance of HPC mixed with NS in front of sulfate attack.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of High Performance Concrete Mixed with Nano-Silica in Front of Sulfate Attack

Nie

et al. 2022

Materials

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“…However, when the GONS concentration rose, they became less flexible. The GONSs were used in This agrees with the latest review paper on utilizing graphene and graphene oxide in the concrete mix [33]. Figure 5 is a summary of Kumar's [34] in-depth examination of the impact of different nanomaterial additions on the flexural strength of concrete 28 days after its placement.…”

Section: Effect Of Various Kinds Of Nanomaterials On Concrete Flexura...mentioning

confidence: 94%

Utilization of PET fiber and nanomaterial in concrete: Review of flexural concrete behavior

Odaa,

Al-Hadithi,

Mansoor

2023

IOP Conf. Ser.: Earth Environ. Sci.

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Concrete may gain maximum flexural strength to a certain percentage with the inclusion of plastic fiber. Because of the weakening bonding concerning the fiber and cement paste, it loses strength under compression at the same rate it gains. The optimal addition ratio must be established to add Polyethylene Terephthalate (PET) fiber to concrete to improve its mechanical and structural qualities. To decide what will change in the microstructure of the concrete and the traction link between the PET fiber’s surface, it is highly advised to use any nanomaterials with PET fibers. Concrete fabric’s characteristics may be enhanced with nanomaterials, thus increasing concrete brittle and proving its activity in case of combination with various fibers as composite materials. The high surface area for fine material can modify concrete texture, one of the properties which leads to increased compressive strength. So, there is a need to create more experimental research and analytical survey. All studies from 2010-2022 It has referenced.

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“…GO is a carbon nanomaterial that is gaining popularity for its use in concrete. [8][9][10][11][12] It has a unique two-dimensional structure and excellent properties that can significantly improve the mechanical properties and functionality of concrete. The addition of GO can work in several ways to improve the quality of concrete.…”

Section: Introductionmentioning

confidence: 99%

The mechanism of fluidity improvement of cement slurry by graphene oxide: a study on nanofriction

Ji,

Hou,

Wang

et al. 2024

Phys. Chem. Chem. Phys.

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Graphene oxide as nano-material in developing sustainable concrete – A brief review

Cited by 22 publications

References 73 publications

Analysis of High Performance Concrete Mixed with Nano-Silica in Front of Sulfate Attack

Analysis of High Performance Concrete Mixed with Nano-Silica in Front of Sulfate Attack

Utilization of PET fiber and nanomaterial in concrete: Review of flexural concrete behavior

The mechanism of fluidity improvement of cement slurry by graphene oxide: a study on nanofriction

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