Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties
Concrete is the most widely used material in the construction industry. However, the cement used in its production raises concerns due to high energy consumption and carbon emissions. This study investigates the potential of using Graphene Oxide (GO) to enhance concrete's performance while repl...
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Elsevier
2025-06-01
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| Series: | Results in Engineering |
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| author | Isuri Fonseka Damith Mohotti Kasun Wijesooriya Chi-King Lee Priyan Mendis |
| author_facet | Isuri Fonseka Damith Mohotti Kasun Wijesooriya Chi-King Lee Priyan Mendis |
| author_sort | Isuri Fonseka |
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| description | Concrete is the most widely used material in the construction industry. However, the cement used in its production raises concerns due to high energy consumption and carbon emissions. This study investigates the potential of using Graphene Oxide (GO) to enhance concrete's performance while replacing a considerable percentage of cement with industrial byproduct, Fly ash (FA). The primary objective is to reduce cement demand while achieving similar or enhanced concrete properties. The study examines the effect of FA replacements (10 %, 20 %, and 30 %) at a constant GO dosage on concrete's workability, compressive strength, indirect tensile strength, flexural strength, and elastic modulus. Additionally, different superplasticiser dosages were examined to maximise the benefits of GO through optimal dispersion. Mechanical properties were evaluated over 90 days curing period, and microstructural analysis was conducted using scanning electron microscopy (SEM). The results indicated that increasing FA content improves the workability of GO-added concrete, counteracting the workability reduction typically caused by GO. At 28 days, the GO-FA mix with 30 % FA replacement achieved mechanical properties comparable to conventional concrete, with slight enhancements of 6 %, 2 %, 3 %, and 4 % in compressive strength, indirect tensile strength, flexural strength, and elastic modulus, respectively. In contrast, FA-only mixes exhibited a 13 % reduction in compressive strength. SEM analysis confirmed that GO improved the microstructure, contributing to this enhanced mechanical performance in GO-FA concrete. This innovative approach demonstrates the feasibility of reducing cement consumption in concrete production without compromising its mechanical performance. |
| format | Article |
| id | doaj-art-0499f8901c9a4485bbb251e5dea8d804 |
| institution | DOAJ |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
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| spelling | doaj-art-0499f8901c9a4485bbb251e5dea8d8042025-08-20T03:10:01ZengElsevierResults in Engineering2590-12302025-06-012610474210.1016/j.rineng.2025.104742Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical propertiesIsuri Fonseka0Damith Mohotti1Kasun Wijesooriya2Chi-King Lee3Priyan Mendis4School of Engineering and Technology, The University of New South Wales, Canberra, ACT 2600, AustraliaSchool of Engineering and Technology, The University of New South Wales, Canberra, ACT 2600, Australia; Corresponding author.School of Engineering and Technology, The University of New South Wales, Canberra, ACT 2600, AustraliaSchool of Engineering and Technology, The University of New South Wales, Canberra, ACT 2600, AustraliaDepartment of Infrastructure Engineering, The University of Melbourne, Parkville, VIC 3010, AustraliaConcrete is the most widely used material in the construction industry. However, the cement used in its production raises concerns due to high energy consumption and carbon emissions. This study investigates the potential of using Graphene Oxide (GO) to enhance concrete's performance while replacing a considerable percentage of cement with industrial byproduct, Fly ash (FA). The primary objective is to reduce cement demand while achieving similar or enhanced concrete properties. The study examines the effect of FA replacements (10 %, 20 %, and 30 %) at a constant GO dosage on concrete's workability, compressive strength, indirect tensile strength, flexural strength, and elastic modulus. Additionally, different superplasticiser dosages were examined to maximise the benefits of GO through optimal dispersion. Mechanical properties were evaluated over 90 days curing period, and microstructural analysis was conducted using scanning electron microscopy (SEM). The results indicated that increasing FA content improves the workability of GO-added concrete, counteracting the workability reduction typically caused by GO. At 28 days, the GO-FA mix with 30 % FA replacement achieved mechanical properties comparable to conventional concrete, with slight enhancements of 6 %, 2 %, 3 %, and 4 % in compressive strength, indirect tensile strength, flexural strength, and elastic modulus, respectively. In contrast, FA-only mixes exhibited a 13 % reduction in compressive strength. SEM analysis confirmed that GO improved the microstructure, contributing to this enhanced mechanical performance in GO-FA concrete. This innovative approach demonstrates the feasibility of reducing cement consumption in concrete production without compromising its mechanical performance.http://www.sciencedirect.com/science/article/pii/S2590123025008199Graphene OxideCement Reduced ConcreteStrengthWorkabilityDispersion |
| spellingShingle | Isuri Fonseka Damith Mohotti Kasun Wijesooriya Chi-King Lee Priyan Mendis Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties Results in Engineering Graphene Oxide Cement Reduced Concrete Strength Workability Dispersion |
| title | Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties |
| title_full | Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties |
| title_fullStr | Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties |
| title_full_unstemmed | Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties |
| title_short | Evaluating the performance of cement-reduced concrete using graphene oxide: Synergistic effects on mechanical properties |
| title_sort | evaluating the performance of cement reduced concrete using graphene oxide synergistic effects on mechanical properties |
| topic | Graphene Oxide Cement Reduced Concrete Strength Workability Dispersion |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025008199 |
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