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All Journal Teknik Sipil dan Arsitektur Jurnal Teknik Sipil Syntax Literate: Jurnal Ilmiah Indonesia Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Teknik Sipil dan Arsitektur Jurnal Teknik Sipil Cendekia (JTSC) Jurnal Locus Penelitian dan Pengabdian Jurnal Indonesia Sosial Sains
Prabowo, Yudi Setio
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PENGARUH PENAMBAHAN SERAT KULIT DURIAN DAN PECAHAN KACA TERHADAP KEKUATAN TEKAN PADA BETON RINGAN Jonathan Glaudio Sitorus; Prabowo, Yudi Setio
Jurnal Teknik Sipil dan Arsitektur Vol 31 No 1 (2026): Jurnal Teknik Sipil dan Arsitektur
Publisher : Fakultas Teknik Universitas Tunas Pembangunan Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36728/jtsa.v31i1.5548

Abstract

Beton ringan banyak digunakan dalam konstruksi karna beratnya yang ringan, namun kelemahan utamanya terletak pada kuat tekan yang rendah. Inovasi diperlukan untuk meningkatkan sifat mekaniknya sekaligus memanfaatkan limbah ramah lingkungan. Penelitian ini bertujuan untuk menganalisis pengaruh penambahan serat kulit durian (sebagai pengganti agregat kasar) dan pecahan kaca (sebagai pengganti agregat halus) terhadap kuat tekan dan workability beton ringan. Metode yang digunakan adalah eksperimental laboratorium dengan membuat benda uji kubus 15x15x15 cm. Variasi campuran terdiri dari beton normal (kontrol), serta dua variasi beton modifikasi: Variasi 1 (substitusi 2% kulit durian dan 4% pecahan kaca) dan Variasi 2 (substitusi 3% kulit durian dan 5% pecahan kaca). Hasil pengujian menunjukkan bahwa nilai slump beton modifikasi turun menjadi 9 cm dari 10 cm pada beton normal, mengindikasikan penurunan workability. Hasil uji kuat tekan pada umur 7 hari membuktikan bahwa beton normal mencapai kuat tekan rata-rata 5,40 MPa. Sementara itu, kuat tekan pada Variasi 1 dan Variasi 2 masing-masing hanya sebesar 3,00 MPa dan 3,20 MPa. Disimpulkan bahwa penambahan serat kulit durian dan pecahan kaca menyebabkan penurunan pada workability dan kuat tekan beton ringan, meskipun Variasi 2 dengan komposisi substitusi lebih tinggi menunjukkan nilai kuat tekan yang sedikit lebih baik.Kata kunci: Beton ringan, Kulit durian, Pecahan kaca, Kuat tekan, Workability.
Green Shells (Perna Viridis L.) Application as A Partial Substitute for Fine Aggregate on Concrete Experiment Kurniawan, Reyhan Aliev; Prabowo, Yudi Setio
Jurnal Teknik Sipil Vol 26, No 1 (2026): Jurnal Teknik Sipil Universitas Tanjungpura
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v26i1.98770

Abstract

The depletion of natural aggregates and the accumulation of shellfish waste necessitate the development of alternative materials for concrete production. This study evaluates the feasibility of using green mussel shell powder (GMSP) as a partial replacement for fine aggregate in concrete. Unlike earlier studies that primarily focus on limited substitution levels, this research systematically examines a broad range of replacement levels (0–50%) to identify the performance threshold for GMSP incorporation. Concrete mixtures were evaluated for 28-day compressive strength, water absorption, and fresh-state workability. The results indicate a nonlinear relationship between GMSP content and compressive strength, with optimal performance at 10% replacement. At this level, a compressive strength of 28.26 MPa was achieved, exceeding the control mixture by 12.8%, attributed to the high CaCO₃ content (77.5%) and associated matrix densification. Higher substitution levels led to a marked reduction in strength due to increased porosity and deterioration of the interfacial transition zone. Although water absorption increased with GMSP content, all values remained within acceptable durability limits. The findings confirm that GMSP from Margaluyu Village is a viable supplementary material, with 10% replacement recommended for optimal structural and sustainability performance.
Analysis of Concrete Compressive Strength Using Blood Clam Shells (Anadara Granosa) as a Substitute for Part of Coarse Aggregate Hidayat, Mohamad Irpan; Prabowo, Yudi Setio
Jurnal Teknik Sipil Vol 26, No 1 (2026): Jurnal Teknik Sipil Universitas Tanjungpura
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v26i1.98758

Abstract

The growing demand for concrete has exacerbated the depletion of natural aggregates, necessitating the exploration of alternative materials derived from waste streams. This study examines the feasibility of using blood cockle shells (Anadara granosa), a coastal waste by-product, as a partial replacement for coarse aggregates in structural concrete. Unlike most previous studies that emphasize fine aggregate or filler substitution, this research focuses on coarse aggregate replacement and its influence on both fresh and hardened concrete performance. An experimental program was conducted using 150 mm concrete cube specimens with replacement levels of 0%, 5%, 10%, and 15% by weight, designed in accordance with SNI 03-2834-2000 for a target strength of 25 MPa. All specimens were water-cured and tested at 7, 14, 21, and 28 days. Workability was evaluated through slump tests, while compressive strength was measured using standard compression testing. Results show that workability increased with higher shell content, whereas compressive strength reached an optimum value of 26.5 MPa at 5% replacement before declining at higher substitution levels. These findings demonstrate that low-percentage substitution of blood cockle shell is technically viable and offers a sustainable pathway for structural concrete applications.
Analysis of Adding Durian Skin Fiber as a Coarse Aggregate Additive in Concrete Arifin, Muhammad Fahmi; Prabowo, Yudi Setio; Mahendra, Muhammad Oka
Jurnal Teknik Sipil Vol 26, No 1 (2026): Jurnal Teknik Sipil Universitas Tanjungpura
Publisher : Fakultas Teknik Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jts.v26i1.98769

Abstract

The extensive use of concrete has accelerated the depletion of natural aggregates and increased the accumulation of underutilized agricultural waste. Durian peel is a biomass residue with potential application in cement-based materials. This study investigates the feasibility of using untreated durian peel fiber as an additive to coarse aggregate in K-175 grade concrete. Unlike previous studies that primarily focus on chemically treated natural fibers, this research establishes the baseline performance of untreated durian peel fiber to identify its practical limitations. An experimental program was conducted using fibers sourced from Serang and Cilegon, Indonesia, processed through cleaning, cutting, and drying. Concrete mixtures were prepared with fiber contents of 0%, 2%, and 4% by weight of coarse aggregate. Twelve 150 mm cube specimens were tested for slump and compressive strength at curing ages of 3 and 7 days. Results indicate that increasing fiber content consistently reduced workability and compressive strength. At 7 days, compressive strength decreased from 5.40 MPa to 4.10 MPa and 2.15 MPa for 2% and 4% fiber additions, respectively. These findings confirm that untreated durian peel fiber is unsuitable for structural concrete but may be suitable for non-structural applications after material modification.
Co-Authors Andika Pratama Arifin, Muhammad Fahmi Haz, Muhamad Hafda Hidayat, Mohamad Irpan Hofifah, Siti Jonathan Glaudio Sitorus Kurniawan, Reyhan Aliev Mahendra, Muhammad Oka Mulyanto, Reza Putra, Al Fiillian Sah Revaldi, M. Alvin Romadhoni, Al – Hafiz Ruchiyat, Ficka Sukma, Berlian Naluri