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Journal : Syntax Literate: Jurnal Ilmiah Indonesia

Pengaruh Stabilisasi Tanah Gambut Menggunakan Fly Ash Bottom Ash Ditinjau dari Nilai California Bearing Ratio (CBR) Khaidarius, Angga; Sutejo, Yulindasari; Hadinata, Febrian
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v9i8.17073

Abstract

Tanah gambut merupakan salah satu tanah bermasalah yang memiliki kompresibilitas dan kandungan air yang sangat tinggi. Tanah gambut juga memiliki kapasitas daya dukung tanah yang rendah sehingga diperlukan teknik perbaikan. Pada penelitian ini menggunakan bahan campuran Fly Ash, Bottom Ash, dan Fly Ash+Bottom Ash. Penggunaan fly ash dan bottom ash sebagai bahan campuran karena bahan ini memiliki butiran yang halus, berwarna keabu- abuan dan diperoleh dari hasil pembakaran batu bara dengan kandungan unsur kimia antara lain silika (SiO2), alumina (Al2O3), Fero oksida (Fe2O3) dan kalsium oksida (CaO) serta memiliki kandungan unsur-unsur lainnya. Penelitian ini menggunakan variasi kadar fly ash dan bottom ash yaitu 0%, 10%, 15%, 20%, 25%. Lokasi pengambilan sampel tanah gambut diambil di Desa Parit Kecamatan Indralaya Utara Kabupaten Ogan Ilir Provinsi Sumatera Selatan. Pengujian laboratorium meliputi pengujian soil properties dan California Bearing Ratio (CBR) Unsoaked.Hasil soil properties (lokasi 1) yaitu: Kadar air (w) 550 ,64%, Kadar Organik (OC) 49,54%, Kadar Abu (AC) 50,46%, Kadar Serat (FC) 42,03%, Berat Jenis (Gs) 1,754 gr/cm3, dan Nilai pH 3. Hasil Pengujian CBR tanah gambut asli sebesar 4.73 % (Lokasi 1) dan 4.55% (Lokasi 2). Nilai CBR Unsoaked Tanah Gambut + fly ash yaitu 3,99%; 4,94%; 7,30%; 9,86%; 12,16%; 15,97%. Tanah Gambut + bottom ash yaitu 3,99%; 4,44%; 6,66%; 8,32%; 10,57%; 13,86%. Tanah Gambut + fly ash + bottom ash yaitu 3,99%; 5,43%; 7,84%; 10,03%; 12,95%; 18,72%.
Material Ramah Lingkungan Pada Gedung Layanan Paru Rsud Siti Fatimah: Evaluasi Dan Rekomendasi Saptaprima, Nyimas Siti Yuliani; Fitriani, Heni; Hadinata, Febrian
Syntax Literate Jurnal Ilmiah Indonesia
Publisher : Syntax Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36418/syntax-literate.v10i8.61346

Abstract

The use of environmentally friendly materials in hospital contruction is essential to support sustainability and promote a healthier built environment. This study aims to analyze the practical application of green materials in the construction of the Pulmonary Service Building at RSUD Siti Fatimah, Palembang. A descriptive qualitative approach was employed, combining content analysis of technical document (Bill of Quantity and Technical Specifications) with quantitative data gathered from questionnaires distributed to construction proffesionals involved in the project. The materials were assessed based on six sustainability indicators: local materials, certified materials, recycled and reused materials, renewble materials, prefabricated materials, and materials free from hazardous substances. The findings indicate that local and certtified materials are the most commonly implemented, while the use of recycled and renewable materials remains limited. There is also a variation in understanding among professions, with architects and engineers demonstrating higher awareness compared to supporting roles. Material mapping revealed that the majority of structural and architectural components met some green criteria, though not optimally. Key barriers to implementation include limited material availability, higher costs, and lack of strong internal policy. This studi recommends enhancing green construction awareness, improving policy enforcement, and promoting the broader use of environmentally friendly materials in hospital building projects.