TRANSFORMASI LIMBAH ABU ARANG KAYU JATI MENJADI MATERIAL FUNGSIONAL PADA ASPAL STONE MATRIX ASPHALT (SMA)

Authors

  • Muhamad Abdul Hadi
  • Rafi Putra Roni Universitas Islam Indonesia

DOI:

https://doi.org/10.32497/wahanats.v30i2.6848

Abstract

The wood processing industry generates large quantities of teak wood charcoal ash waste that remain underutilized. This study investigates its application as a filler substitute in Stone Matrix Asphalt (SMA) mixtures with varying proportions of 0%, 25%, 50%, 75%, and 100%. The tests conducted included Marshall Standard (MS), Voids in Coarse Aggregate (VCA), Cantabro Loss (CL), Index of Retained Strength (IRS), and Indirect Tensile Strength (ITS), referring to the 2018 Bina Marga Specifications, Revision 2. The results indicate an optimum filler content at 25%, yielding the highest stability of 1028.53 kg and an ITS value of 454,14 kPa, accompanied by low flow values and good resistance to moisture damage. Increasing the filler content to 50% and 100% reduced stability to 934,99 kg, increased flow, and decreased certain parameters, although MQ values and CL (maximum 15.59%) still met specification requirements. Overall, the 25% substitution level provided the best balance of high stability, low flow, and durability, whereas 75% and 100% substitution levels led to a decline in mixture performance.

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Published

2025-12-30

Issue

Vol. 30 No. 2 (2025): Wahana Teknik Sipil

Section

Articles

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Copyright (c) 2025 Muhamad Abdul Hadi, Rafi Putra Roni

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