MECHANICAL PERFORMANCE OF HYBRID FIBER-REINFORCED CONCRETE: THE SYNERGISTIC EFFECT OF RAMIE AND MICRO SYNTHETIC FIBERS

Authors

  • Delista Putri Deni Appropriate Structure Research Group, Department of Civil Engineering, Vocational School, Universitas Sebelas Maret, 57126, Surakarta, Indonesia
  • Aziz Abdul Majid Appropriate Structure Research Group, Department of Civil Engineering, Vocational School, Universitas Sebelas Maret, 57126, Surakarta, Indonesia
  • Oktavia Kurnianingsih Appropriate Structure Research Group, Department of Civil Engineering, Vocational School, Universitas Sebelas Maret, 57126, Surakarta, Indonesia
  • Hersa Adhi Pambudya Department of Civil Engineering, Vocational School, Universitas Sebelas Maret, 57126, Surakarta, Indonesia
  • Mazundha Laksmi Anasya Department of Civil Engineering, Vocational School, Universitas Sebelas Maret, 57126, Surakarta, Indonesia
  • Lutfi Alfia Nor'aini Department of Civil Engineering, Vocational School, Universitas Sebelas Maret, 57126, Surakarta, Indonesia

DOI:

https://doi.org/10.11113/aej.v16.25567

Keywords:

ramie fiber, micro synthetic fiber, mechanical performance, synergistic effect, Hybrid fiber-reinforced concrete, ramie fiber, micro synthetic fiber, mechanical performance, synergistic effect

Abstract

Conventional concrete has limitations in tensile strength and crack control. Fiber-reinforced concrete improves these properties, but single fiber types can hinder performance. While steel fibers are common, synthetic and natural fibers are gaining traction due to their cost-effectiveness, performance, and eco-friendliness. This research explores hybrid fiber concrete using micro synthetic (polyamide, 12 mm, 0.06% fiber volume fractions) and natural ramie (19 mm, 0.25%, 0.50%, 0.75% by cement weight) fibers to enhance mechanical performance. Five mix designs (V1-V5) were evaluated for compressive strength, splitting tensile strength, and modulus of elasticity at 28 days. Results showed that plain concrete (V1) had the highest compressive strength of 32.44 MPa but suffered brittle failure. V2 (micro synthetic fibers only) showed the lowest strength, indicating limited effectiveness. The addition of hybrid fibers (V3-V5) significantly increased the splitting tensile strength of concrete by 0.99-15.84% and modulus of elasticity by 101.73-198.05% higher than plain concrete. Hybrid fibers also transformed the failure mode from brittle to ductile. The V4 mixture represents the most effective combination of strength, stiffness, and crack resistance. This research highlights the synergistic potential of hybrid fiber reinforcement for improving concrete's tensile capacity, stiffness, and post-cracking behavior, offering valuable insights for durable concrete applications.

 

References

[1] Ahmad, J. and Z. Zhou. 2022. Mechanical Properties of Natural as well as Synthetic Fiber Reinforced Concrete: A Review. Construction and Building Materials. 333: 127353. DOI: https://doi.org/10.1016/j.conbuildmat.2022.127353

[2] Deni, D. P., S.A. Kristiawan, and S. Sangadji. .2022. Interfacial bond strength between micro synthetic fibre-reinforced patch repair mortar and concrete substrate. Engineering and Applied Science Research. 49(5): 630–642. DOI: https://doi.org/10.14456/easr.2022.62

[3] Bentur, A. and M. Sidney. 2006. Fibre reinforced cementitious composites. Crc Press. DOI: https://doi.org/10.1201/9781482267747

[4] Anas, M., M. Khan, H. Bilal, S. Jadoon, and M. N. Khan. 2022. Fiber Reinforced Concrete: A Review. Engineering Proceedings. 22(1): 1–7. DOI: https://doi.org/10.3390/engproc2022022003

[5] S. Zainal, S. M. I., F. Hejazi, and A. M. A. Mafaileh. 2023. Strengthening of Reinforced Concrete slabs using macro and micro synthetic fibers. Structures. 51: 1579–1590. DOI: https://doi.org/10.1016/j.istruc.2023.03.120

[6] American Concrete Institute. 2000. ACI 116R: Cement and Concrete Terminology. American Concrete Institute.

[7] Buratti, N., C. Mazzotti, and M. Savoia. 2011. Post-cracking behaviour of steel and macrosynthetic fibre-reinforced concretes. Construction and Building Materials. 25(5): 2713–22. DOI: https://doi.org/10.1016/j.conbuildmat.2010.12.022

[8] Thomas, J. and A. Ramaswamy. 2007. Mechanical Properties of Steel Fiber-Reinforced Concrete. Journal Material Civil Engineering. 19: 385–92. DOI: https://doi.org/10.1061/(ASCE)0899-1561(2007)19:5(385)

[9] Roesler, J. R., S. A. Altoubat, D. A. Lange, K. A. Rieder, and G. R. Ulreich. 2006. Effect of synthetic fibers on structural behavior of concrete slabs-on-ground. ACI Material Journal. 103(1): 3–10. DOI: https://doi.org/10.14359/15121

[10] Khanlou, A., G. MacRae, A. Scott, S. Hicks, and G. Clifton. 2012. Shear performance of steel fibre reinforced concrete. Australasian Structural Engineering Conference, 1(2006): 8.

[11] Naaman, A. E. 2007. Engineered Steel Fibers with Optimal Properties for Reinforcement of Cement Composites. Journal Advanced Concrete Technology. 1(3): 241–52. DOI: https://doi.org/10.3151/jact.1.241

[12] ASTM International. 2014. ASTM C1116/C1116M-15 Standard Specification for Fiber-Reinforced Concrete. ASTM International. DOI: https://doi.org/10.1520/C1116_C1116M-10AR15

[13] Salvador Cesa, F., A. Turra, and J. Baruque-Ramos. 2017. Synthetic fibers as microplastics in the marine environment: A review from textile perspective with a focus on domestic washings. Science of the Total Environment, 598(1116): 29. DOI: https://doi.org/10.1016/j.scitotenv.2017.04.172

[14] Zheng, Z. and D. Feldman. 1995. Synthetic fibre-reinforced concrete. Progress in Polymer Science. 20(2): 185–210.

DOI: https://doi.org/10.1016/0079-6700(94)00030-6

[15] Liu, X., Q. Sun, Y. Yuan, and L. Taerwe. 2020. Comparison of the structural behavior of reinforced concrete tunnel segments with steel fiber and synthetic fiber addition. Tunnelling and Underground Space Technology. 103: 103506. DOI: https://doi.org/10.1016/j.tust.2020.103506

[16] Sanjay, M. R., G. R. Arpitha, P. Senthamaraikannan, M. Kathiresan, M. A. Saibalaji, and B. Yogesha. 2019. The hybrid effect of Jute/Kenaf/E-glass woven fabric epoxy composites for medium load applications: impact, inter-laminar strength, and failure surface characterization. Journal of Natural Fibers. 16(4): 600–612. DOI: https://doi.org/10.1080/15440478.2018.1431828

[17] Mudi, C. and A. Shaw. 2025. Natural fiber reinforcement-investigating ramie in cementitious composites with emphasis on fiber surface modifications. Journal of Building Engineering. 100: 111705. DOI: https://doi.org/10.1016/j.jobe.2024.111705

[18] Hasan, M., T. Saidi, M. Jamil, Z. Amalia, and A. Mubarak. 2022. Mechanical properties and absorption of high-strength fiber-reinforced concrete (HSFRC) with sustainable natural fibers. Buildings. 12(12): 2262. DOI: https://doi.org/10.3390/buildings12122262

[19] Rashmi Nayak, J., J. Bochen, and M. Gołaszewska. 2022. Experimental studies on the effect of natural and synthetic fibers on properties of fresh and hardened mortar. Construction and Building Materials. 347: 128550. DOI: https://doi.org/10.1016/j.conbuildmat.2022.128550

[20] Siva Chidambaram, R. and P. Agarwal. 2018. Performance Evaluation of Metallic and Synthetic Fiber Hybridization on the Cyclic Behavior of Exterior Beam Column Joint. Advanced Civil Engineering Material. 7(1): 381-402. DOI: https://doi.org/10.1520/ACEM20170137

[21] Santosa, B., A. G. Turangan, and S. A. Kristiawan. 2024. Direct tensile strength of repair mortar containing micro-synthetic fiber. AIP Conference Proceedings, 3110(1): 020018. DOI: https://doi.org/10.1063/5.0205140

[22] Mahendra, D. A. I. and Y. Risdianto. 2019. The use of ramie fiber on compressive strength and flexural strength in the manufacture of lightweight concrete panels using EAFS (electric arc furnace slag) as a substitute for sand. Rekayasa Teknik Sipil. 1(4): 1–7.

[23] Shakir, M. H. and A. K. Singh. 2025. Ramie fiber and its composites: A review. Polymer Composites. 46(8). DOI: https://doi.org/10.1002/pc.29417

[24] Musaddad. 2007. Ramie Fiber in Concrete Construction. Universitas Sumatera Utara.

[25] Purboputro, P. M. and A. Hariyanto. 2017. Analysis of Tensile Properties and Impact of Ramie Fiber Composites Treated with Alkali for 2, 4, 6, and 8 Hours with Polyester Matrix. Media Mesin: Majalah teknik Mesin. 18(2): 64–67. DOI: https://doi.org/10.23917/mesin.v18i2.5238

[26] Yudha Kusuma, G. 2018. The Use of Ramie Fiber in Normal Concrete Production on Mechanical Property Testing Capabilities. Rekayasa Teknik Sipil. 3(3): 1–5.

[27] Noorvand, H., M. Michael, and K. Kamil. 2022. Evaluation of optimum fiber length in fiber-reinforced asphalt concrete. Journal of Materials in Civil Engineering. 34(3): 04021494. DOI: https://doi.org/10.1061/(ASCE)MT.1943-5533.0004128

[28] Ayenia, I. S., J. M. Yatima, N. H. A. S. Lim, and O. G. Alukoa. 2024. A review of hybridised use of fibres in shear behaviour of fibre reinforced concrete beams. Asean Engineering Journal. 14(1): 145–156. DOI: https://doi.org/10.11113/aej.v14.20314

[29] Badan Standardisasi Nasional. 2012. SNI 7656:2012 Procedures for selecting mixtures for normal concrete, heavy concrete, and mass concrete. Badan Standardisasi Nasional.

[30] SIG. 2025. Dynamix, Innovative All-Purpose Cement. https://www.sig.id/dynamix-serbaguna (Accessed on 7 July 2025).

[31] ASTM International. 2020. ASTM C40 Standard Test Method for Organic Impurities in Fine Aggregates for Concrete. ASTM International. DOI: https://doi.org/10.1520/C0040_C0040M-20

[32] ASTM International. 2023. ASTM C117-23 Standard Test Method for Materials Finer than 75-μm (No. 200) Sieve in Mineral Aggregates by Washing. ASTM International. DOI: https://doi.org/10.1520/C0117-23

[33] ASTM International. 2023. ASTM C128 Standard Test Method for Relative Density (Specific Gravity) and Absorption of Fine Aggregate. ASTM International. DOI: https://doi.org/10.1520/C0128-22

[34] ASTM International. 2019. ASTM C136 Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates. ASTM International. DOI: https://doi.org/10.1520/C0136_C0136M-19

[35] ASTM International. 2024. ASTM C127 Standard Test Method for Relative Density (Specific Gravity) and Absorption of Coarse Aggregate. ASTM International. DOI: https://doi.org/10.1520/C0127-24

[36] ASTM International. 2020. ASTM C131 Standard Test Method for Resistance to Degradation of Small-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. ASTM International. DOI: https://doi.org/10.1520/C0131_C0131M-20

[37] Kordsa. 2021. KraTos MicroFiber 12 mm. Kordsa.

[38] ASTM International. 2018. ASTM C39/C39M-18 Standard Test Method for Compressive Strength of Cylindrical Concrete Specimens. ASTM International. DOI: https://doi.org/10.1520/C0039_C0039M-18

[39] ASTM International. 2017. ASTM C496/C496M-17 Standard Test Method for Splitting Tensile Strength of Cylindrical Concrete Specimens. ASTM International. DOI: https://doi.org/10.1520/C0496_C0496M-17

[40] ASTM International. 2014. ASTM C469/C469M Standard Test Method for Static Modulus of Elasticity and Poisson’s Ratio of Concrete in Compression. ASTM International. DOI: https://doi.org/10.1520/C0469_C0469M-14

[41] ASTM International. 2016. ASTM E178 Standard Practice for Dealing with Outlying Observations. ASTM International. DOI: https://doi.org/10.1520/E0178-16A

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Published

2026-08-31

Issue

Vol. 16 No. 3: September 2026

Section

Articles