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ANALISIS CAMPURAN ASPAL AC-WC PG 76 DENGAN ADDITIONAL FILLER ABU BAMBU TERHADAP FLEKSIBILITAS DAN DURABILITAS Abdi Rachman Sidiq; Farlin Rosyad; Ely Mulyati
Ensiklopedia of Journal Vol 8, No 1 (2025): Vol. 8 No. 1 Edisi 1 Oktober 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i1.3415

Abstract

Highways are an essential land transportation infrastructure, and the quality of pavement must be maintained to ensure performance and service life. One effort to improve the quality of flexible pavement on the Asphalt Concrete-Wearing Course (AC-WC) layer is by utilizing alternative materials as filler. This study examines the effect of adding bamboo ash as an additional filler in AC-WC mixtures with PG 76 asphalt on flexibility (flow) and durability (Marshall Retained Stability). Bamboo ash contains silica (SiO₂) and exhibits pozzolanic properties, which have the potential to enhance mixture performance. The bamboo ash content variations used were 0%, 0.5%, 1.0%, 1.5%, and 2.0% by the total aggregate weight, with testing conducted using the Marshall Test method. The results showed that the addition of 0.5% bamboo ash increased the flow value from 3.32 mm to 3.52 mm, while further additions above this level did not result in additional flexibility improvement. All mixture variations had Marshall Retained Stability values above the minimum requirement of PU Bina Marga 2018 Revision 2 (≥90%), with the highest value recorded at 0.5% (91.47%). Based on the balance between flexibility and durability, the optimal bamboo ash filler content for AC-WC PG 76 is 0.5%.Keywords : AC-WC, bamboo ash, PG 76 asphalt, flexibility, durability, Marshall Test.
PEMANFAATAN LIMBAH PLASTIK SEBAGAI BAHAN BETON RINGAN RAMAH LINGKUNGAN Nadia Meilani; Ely Mulyati
Ensiklopedia of Journal Vol 8, No 1 (2025): Vol. 8 No. 1 Edisi 1 Oktober 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i1.3413

Abstract

This study aims to examine the effect of utilizing plastic waste as an additive material in lightweight concrete on the compressive strength of the concrete. The testing was conducted with variations in the percentage of plastic waste at 5%, 10%, and 15% in the concrete mix, then compared to normal concrete without plastic waste. The results showed that the highest compressive strength was obtained in the mix with 5% plastic waste, reaching 29.09 MPa, which is slightly higher than the normal concrete with a compressive strength of 28.24 MPa at 28 days of age. At 10% and 15% plastic waste, the compressive strengths were 28.45 MPa and 28.03 MPa respectively, indicating a decrease compared to the 5% mix. These data suggest that the addition of plastic waste does not consistently improve the quality of concrete, so the optimal percentage must be carefully determined to avoid reducing the concrete’s strength. This study illustrates that the utilization of plastic waste as an additive in lightweight concrete can enhance compressive strength at certain levels, but excessive use may negatively affect the concrete’s performance.Keywords: Plastic Waste, Environmentally Friendly Lightweight Concrete