Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation
This study explores hybrid fiber-reinforced alkali-activated concrete (AAHFRC) as a sustainable solution, enhancing compressive strength and impact resistance through the bridging capacity of hybrid fibers. Utilizing a specialized ternary mix with FA: GGBS: SF in a 35:50:15 ratio with the hybrid int...
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Elsevier
2025-07-01
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| Series: | Composites Part C: Open Access |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666682025000726 |
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| author | Tejeswara Rao Maganti Chandra S Kandikuppa Hari K.R. Gopireddy Revanth Dugalam Krishna Rao Boddepalli |
| author_facet | Tejeswara Rao Maganti Chandra S Kandikuppa Hari K.R. Gopireddy Revanth Dugalam Krishna Rao Boddepalli |
| author_sort | Tejeswara Rao Maganti |
| collection | DOAJ |
| description | This study explores hybrid fiber-reinforced alkali-activated concrete (AAHFRC) as a sustainable solution, enhancing compressive strength and impact resistance through the bridging capacity of hybrid fibers. Utilizing a specialized ternary mix with FA: GGBS: SF in a 35:50:15 ratio with the hybrid interaction of steel, polypropylene, and glass fibers demonstrates the significant improving the impact resistance performance. Experiments were conducted on the compressive strength and impact resistance of AAHFRC in accordance with ACI 544 guidelines. Experimental results demonstrated a 63 % increase in compressive strength, with the highest value of 106.38 MPa recorded for the ASG2.0 hybrid mix, along with a significant improvement in impact resistance. The hybrid fiber mixes outperformed mono-fiber mixes, achieving the highest fracture impact energy (Ef) of 56 kN-m. The synergy factor further validated the effectiveness of hybrid systems, with ASG2.0 attaining a synergy index of 1.37, surpassing mono-fiber mixes. Complementing the experimental findings, statistical Weibull analysis and finite element analysis (FEA) using ANSYS were conducted. The Weibull analysis revealed strong reliability, with an R-squared value of 0.989, indicating high consistency in impact resistance performance. Explicit dynamic analysis using FEM verified improved stress distribution, reduced deformation, and a strong correlation between experimental and simulated results, with a difference of not more than 5 %. These outcomes demonstrate the potential of AAHFRC as a sustainable, durable, and high-performance material for advanced construction applications. |
| format | Article |
| id | doaj-art-0307fb096e7b4dc19b3c012279ada441 |
| institution | DOAJ |
| issn | 2666-6820 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Composites Part C: Open Access |
| spelling | doaj-art-0307fb096e7b4dc19b3c012279ada4412025-08-20T03:16:15ZengElsevierComposites Part C: Open Access2666-68202025-07-011710062910.1016/j.jcomc.2025.100629Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulationTejeswara Rao Maganti0Chandra S Kandikuppa1Hari K.R. Gopireddy2Revanth Dugalam3Krishna Rao Boddepalli4Department of Civil Engineering, Jawaharlal Nehru Technological University Kakinada (JNTUK), Kakinada, A.P., India; Corresponding author.Department of Civil Engineering, Jawaharlal Nehru Technological University Kakinada (JNTUK), Kakinada, A.P., IndiaDepartment of Civil Engineering, Jawaharlal Nehru Technological University Kakinada (JNTUK), Kakinada, A.P., IndiaDepartment of Civil Engineering, IIT Indore, Indore, MP, 453552, IndiaDepartment of Civil Engineering, Jawaharlal Nehru Technological University Kakinada (JNTUK), Kakinada, A.P., IndiaThis study explores hybrid fiber-reinforced alkali-activated concrete (AAHFRC) as a sustainable solution, enhancing compressive strength and impact resistance through the bridging capacity of hybrid fibers. Utilizing a specialized ternary mix with FA: GGBS: SF in a 35:50:15 ratio with the hybrid interaction of steel, polypropylene, and glass fibers demonstrates the significant improving the impact resistance performance. Experiments were conducted on the compressive strength and impact resistance of AAHFRC in accordance with ACI 544 guidelines. Experimental results demonstrated a 63 % increase in compressive strength, with the highest value of 106.38 MPa recorded for the ASG2.0 hybrid mix, along with a significant improvement in impact resistance. The hybrid fiber mixes outperformed mono-fiber mixes, achieving the highest fracture impact energy (Ef) of 56 kN-m. The synergy factor further validated the effectiveness of hybrid systems, with ASG2.0 attaining a synergy index of 1.37, surpassing mono-fiber mixes. Complementing the experimental findings, statistical Weibull analysis and finite element analysis (FEA) using ANSYS were conducted. The Weibull analysis revealed strong reliability, with an R-squared value of 0.989, indicating high consistency in impact resistance performance. Explicit dynamic analysis using FEM verified improved stress distribution, reduced deformation, and a strong correlation between experimental and simulated results, with a difference of not more than 5 %. These outcomes demonstrate the potential of AAHFRC as a sustainable, durable, and high-performance material for advanced construction applications.http://www.sciencedirect.com/science/article/pii/S2666682025000726Ternary blend concreteHybrid fibersImpact strengthSynergy effectWeibull analysisSimulation |
| spellingShingle | Tejeswara Rao Maganti Chandra S Kandikuppa Hari K.R. Gopireddy Revanth Dugalam Krishna Rao Boddepalli Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation Composites Part C: Open Access Ternary blend concrete Hybrid fibers Impact strength Synergy effect Weibull analysis Simulation |
| title | Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation |
| title_full | Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation |
| title_fullStr | Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation |
| title_full_unstemmed | Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation |
| title_short | Enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary-blended alkali-activated concrete: An experimental, weibull analysis and finite element simulation |
| title_sort | enhanced compressive strength and impact resistance in hybrid fiber reinforced ternary blended alkali activated concrete an experimental weibull analysis and finite element simulation |
| topic | Ternary blend concrete Hybrid fibers Impact strength Synergy effect Weibull analysis Simulation |
| url | http://www.sciencedirect.com/science/article/pii/S2666682025000726 |
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