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Abstract
Kebutuhan material perbaikan beton yang mampu mencapai kekuatan awal tinggi semakin penting pada pekerjaan rehabilitasi struktur yang menuntut waktu henti singkat. Mortar polimer berbasis resin vinyl ester memiliki potensi sebagai material perbaikan cepat karena proses curing yang relatif cepat dan kekuatan mekanik tinggi, tetapi biaya resin masih menjadi kendala penerapan. Penelitian ini bertujuan menganalisis pengaruh substitusi volume resin vinyl ester dengan filler fly ash dan pasir Lumajang terhadap kuat tekan, kuat tarik, kuat lentur, dan efisiensi biaya mortar polimer. Penelitian dilakukan secara eksperimental dengan fokus pada komposisi resin 60% dan filler 40%, dimana filler tersusun atas fly ash dan pasir dengan rasio 50:50. Kuat tekan diuji pada umur 3 jam, 24 jam, dan 28 hari, sedangkan kuat tarik dan kuat lentur diuji pada umur 24 jam. Hasil penelitian menunjukkan kuat tekan sebesar 1005,32 kg/cm² pada umur 3 jam, 1056,00 kg/cm² pada umur 24 jam, dan 1101,32 kg/cm² pada umur 28 hari. Kuat tarik mencapai 155,84 kg/cm² dan kuat lentur mencapai 439,00 kg/cm². Komposisi tersebut menunjukkan keseimbangan antara kekuatan awal, perkembangan kekuatan jangka panjang, dan efisiensi biaya. Hasil ini menunjukkan bahwa mortar polimer vinyl ester dengan filler fly ash dan pasir berpotensi digunakan sebagai material perbaikan cepat, meskipun pengujian lekatan dan durabilitas lapangan masih diperlukan.
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References
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- ASTM International, ASTM D7264/D7264M Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials. West Conshohocken, PA: ASTM International, 2015.
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- Badan Standardisasi Nasional, SNI 03-6825-2002 Metode Pengujian Kekuatan Tekan Mortar Semen Portland untuk Pekerjaan Sipil. Jakarta: BSN, 2002.
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References
R. Bedi, R. Chandra, and S. P. Singh, "Mechanical properties of polymer concrete," Journal of Composites, vol. 2013, Article ID 948745, 2013, doi: 10.1155/2013/948745.
O. A. Ahmad, A. M. Al Kassasbeh, and M. A. Al Rawashdeh, "Fabrication of polymer concrete of lightweight and high performance," International Journal of GEOMATE, vol. 20, no. 77, pp. 116-122, 2021, doi: 10.21660/2020.77.44329.
N. J. Jin, J. Yeon, S. H. Min, and K. S. Yeon, "Strength developments and deformation characteristics of MMA-modified vinyl ester polymer concrete," International Journal of Concrete Structures and Materials, vol. 12, no. 4, 2018, doi: 10.1186/s40069-018-0232-0.
S. S. Alterary and N. H. Marei, "Fly ash properties, characterization, and applications: A review," Journal of King Saud University - Science, vol. 33, no. 6, 101536, 2021, doi: 10.1016/j.jksus.2021.101536.
T. Rochman, E. Arifi, E. N. Cahya, and A. M. Wicaksono, "The performance of novel polymer mortar containing vinyl ester resin reinforced by fly ash and iron sand under compressive, tensile, and flexural test," Journal of Building Engineering, vol. 76, 107205, 2023, doi: 10.1016/j.jobe.2023.107205.
T. Rochman, Sumardi, S. H. Susilo, and H. A. Wardhana, "Vinyl-ester-based polymer concrete incorporating high volume fly ash under tensile, compressive, and flexural loads," Journal of King Saud University - Engineering Sciences, vol. 36, no. 3, pp. 153-163, 2024, doi: 10.1016/j.jksues.2023.03.001.
ASTM International, ASTM D3039/D3039M Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials. West Conshohocken, PA: ASTM International, 2017.
ASTM International, ASTM D7264/D7264M Standard Test Method for Flexural Properties of Polymer Matrix Composite Materials. West Conshohocken, PA: ASTM International, 2015.
A. Kubit, M. Bucior, R. Kluz, K. Ochałek, and K. Burnat, "Effect of nanofillers on the mechanical properties of vinyl ester resin used as a carbon fiber reinforced polymer matrix," Advances in Science and Technology Research Journal, vol. 16, no. 4, pp. 10-21, 2022, doi: 10.12913/22998624/152053.
H. Z. Farahani, A. Farahani, P. Fakharian, and D. Jahed Armaghani, "Experimental study on mechanical properties and durability of polymer silica fume concrete with vinyl ester resin," Materials, vol. 16, no. 2, 757, 2023, doi: 10.3390/ma16020757.
J. J. Sokołowska, "Long-term compressive strength of polymer concrete-like composites with various fillers," Materials, vol. 13, no. 5, 1207, 2020, doi: 10.3390/ma13051207.
A. A. J. Ghanim, I. S. Agwa, A. M. Zeyad, and M. M. Sherif, "Effect of modified nano-titanium and fly ash on ultra-high-performance concrete properties," Structural Concrete, vol. 24, no. 5, pp. 6815-6832, 2023, doi: 10.1002/suco.202300053.
ASTM International, ASTM C579-23 Standard Test Methods for Compressive Strength of Chemical-Resistant Mortars, Grouts, Monolithic Surfacings, and Polymer Concretes. West Conshohocken, PA: ASTM International, 2023.
Badan Standardisasi Nasional, SNI 03-6825-2002 Metode Pengujian Kekuatan Tekan Mortar Semen Portland untuk Pekerjaan Sipil. Jakarta: BSN, 2002.
A. Palamarchuk, P. Yudaev, and V. Tcherdyntsev, "Polymer concretes based on various resins: Modern research and modeling of mechanical properties," Journal of Composites Science, vol. 8, no. 12, 503, 2024, doi: 10.3390/jcs8120503.