The Effect of Using Liquid Latex as an Additive in Asphalt Concrete–Wearing Course (AC-WC) Mixtures on Marshall Characteristics
DOI:
https://doi.org/10.55606/jeei.v6i1.6664Keywords:
AC-WC, Additive, Liquid Latex, Marshall Characteristics, VFAAbstract
Population growth and increasing economic activities have raised the demand for durable and high-quality road infrastructure. However, the Asphalt Concrete–Wearing Course (AC-WC), which functions as the surface layer of flexible pavements, often suffers from premature damage such as cracking and deformation due to heavy traffic loads and extreme weather. Therefore, improvements in asphalt mixture materials are necessary. One alternative is the use of liquid latex derived from natural rubber as an additive. Owing to its high elasticity, liquid latex is expected to improve flexibility, crack resistance, and durability of asphalt mixtures. This study aims to evaluate the effect of liquid latex addition on the Marshall characteristics of AC-WC mixtures and to determine the optimum latex content. The research employed laboratory experimental methods using liquid latex contents of 0%, 2.5%, 5%, 7.5%, and 10%, with three specimens prepared for each variation. The evaluated parameters included stability, flow, air voids in the mix (VIM), voids in mineral aggregate (VMA), voids filled with asphalt (VFA), Marshall Quotient (MQ), and density. The results indicate that liquid latex significantly affects all Marshall parameters. However, excessive latex content reduces mixture performance. The optimum condition was achieved at 2.5% liquid latex with an asphalt content of 5.65%, producing a stability of 1102.2 kg, flow of 3.13 mm, VIM of 3.87%, VMA of 17.01%, VFA of 77.26%, MQ of 355.15 kg/mm, and density of 2.297 g/cc. All parameters satisfy the 2018 Bina Marga General Specifications (Revision 2).
References
Abdulrahman, H., Ahmad, J., & Hainin, M. R. (2021). Performance evaluation of natural rubber latex modified asphalt mixtures. Construction and Building Materials, 302, 124189. https://doi.org/10.1016/j.conbuildmat.2021.124189
Amal, A. S. (2012). Pemanfaatan getah karet pada aspal AC 60/70 terhadap stabilitas Marshall pada asphalt treated base (ATB). Jurnal Media Teknik Sipil, 9(1). https://doi.org/10.22219/jmts.v9i1.1111
Arifin, N. A., Hamsyah, & Didi, A. B. (2024). Pemanfaatan fly ash dan abu sekam padi sebagai substitusi filler pada campuran aspal AC-WC. Jurnal Konstruksi, 1(1), 10-20. https://doi.org/10.33364/konstruksi/v.1-1.xxxx
Badan Standardisasi Nasional. (1991). SNI 06-2489-1991: Metode pengujian campuran aspal dengan alat Marshall.
Badan Standardisasi Nasional. (2002). SNI 03-6893-2002: Metode pengujian berat jenis maksimum campuran beraspal.
Badan Standardisasi Nasional. (2008). SNI 2417-2008: Metode uji keausan agregat dengan mesin abrasi Los Angeles.
Badan Standardisasi Nasional. (2011a). SNI 2441-2011: Metode uji berat jenis aspal keras.
Badan Standardisasi Nasional. (2011b). SNI 2456-2011: Metode uji penetrasi aspal.
Direktorat Jenderal Bina Marga. (2024). Kondisi permukaan jalan nasional. Open Data PUPR. https://data.pu.go.id/dataset/kondisi-permukaan-jalan-nasional
Hainin, M. R., Yusoff, N. I. M., Ali, H., & Aziz, M. M. A. (2020). Engineering properties of asphalt mixtures incorporating natural rubber latex. International Journal of Pavement Engineering, 21(8), 989-1000. https://doi.org/10.1080/10298436.2018.1529184
Khotib, J., Susanto, A., & Wicaksono, D. (2024). Performance evaluation of latex-modified asphalt mixtures under tropical climate conditions. Case Studies in Construction Materials, 20, e01845. https://doi.org/10.1016/j.cscm.2023.e01845
Kurniadji. (1999). Pengembangan aspal karet dalam meningkatkan mutu campuran perkerasan jalan (p. 89). Departemen Pekerjaan Umum.
Lagaligo, D., Said, L. B., & Alifuddin, A. (2022). Pengaruh temperatur pemadatan pada campuran beton aspal (AC-WC) dengan bahan tambah karet alam terhadap ketahanan deformasi dan kuat tarik tidak langsung. Jurnal Konstruksi, 1(11), 23-36.
Mangaloksa, S. G. (2024). Pengaruh penambahan lateks pada campuran aspal AC-WC dengan abu vulkanik sebagai filler terhadap karakteristik Marshall [Undergraduate thesis, Universitas Malikussaleh].
Nawir, D. (2021). Bahan material perkerasan jalan. Kanhaya Karya.
Putri, E. E., Hadiwardoyo, S. P., & Suryadi, E. (2021). Effect of natural rubber latex on mechanical and volumetric properties of asphalt concrete wearing course. International Journal of Pavement Research and Technology, 14(3), 345-354. https://doi.org/10.1007/s42947-020-0021-7
Sukirman, S. (2010). Perencanaan tebal struktur perkerasan lentur. NOVA.
Sukirman, S. (2016). Beton aspal campuran panas (3rd ed.). Institut Teknologi Nasional.
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