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Analisis Perbedaan Kekuatan Struktur Kolom Akibat Tsunami pada Gedung Laboratoriom Dinas PUPR Kota Banda Aceh Mhd. Arief Diana; Michel Kasaf; Taufik, Taufik; Anwar, Khairul; Pitri, Deni Trianda
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 3 (2025): Juni 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i3.5510

Abstract

The earthquake and subsequent tsunami that struck Banda Aceh at the end of 2004 caused extensive damage to various infrastructures, including the Laboratory Building of the Public Works Department of Banda Aceh City. This study aims to evaluate the variation in concrete strength between columns that were submerged during the tsunami and those that remained unaffected. A non-destructive testing (NDT) method was employed, using a Concrete Hammer Test device to assess the condition of the concrete. The testing was conducted on first-floor columns, with each column section tested 12 times at intervals of 3 cm between points. The results indicate a significant reduction in compressive strength, with the most severe decline observed in column K.6.4, where a 57% strength loss was recorded due to porous concrete conditions. The smallest reduction was found in columns K.1.9 and K.6.5, both showing a 5% decrease, while column K.1.7 exhibited no detectable deterioration. Overall, the majority of columns experienced notable degradation in structural integrity, underscoring the necessity for further comprehensive evaluations to determine the building’s continued feasibility and safety for use.
Studi Dampak Penambahan Abu Cangkang Kemiri terhadap Kekuatan Aspal Penganti Filler pada Kekerasan AC- WC Taufik, Taufik; TM Rezaka Alfitra; Jiwa Malem Marsya; Jetno Harja; Michel Kasaf
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 4 (2025): Agustus 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i4.6256

Abstract

Southeast Aceh Regency is one of the hazelnut-producing areas that produces large amounts of shell waste. This study aims to utilize hazelnut shell ash as a replacement filler in the Asphalt Concrete – Wearing Course (AC-WC) mixture with variations in 2%, 3%, and 4% levels, as well as an optimal asphalt content of 6.4%. The test was carried out using the Marshall Test method referring to the 2018 General Specification of Bina Marga to assess the parameters of stability, flow, Void in Mix (VIM), Void in Mineral Aggregate (VMA), Void Filled with Bitumen (VFB), and Marshall Quotient (MQ). The results of the study showed that all parameters met the specification limits of Bina Marga 2018. The stability value increased with the addition of filler content, from 1464.00 kg (2%) to 1749.67 kg (4%). The flow value is in the range of 2–4 mm, VIM is in the range of 3–5%, VMA is above 14%, and VFB is above 65%. Although the MQ value decreases with increasing filler levels, all values remain above the minimum standard. In conclusion, hazelnut shell ash is effectively used as an alternative filler that is able to improve the technical performance of the AC-WC mixture while providing environmental benefits through the use of organic waste