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All Journal Jurnal Penelitian Teknik Sipil Konsolidasi
Satriawati Cangara
Program Studi Teknik Sipil, Fakultas Teknik, Universitas Bosowa
Civil Engineering, Building, Construction & Architecture Engineering Materials Science & Nanotechnology

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Analisis Stabilisasi Tanah Lempung Dengan Menggunakan Ampas Kopi Dan Arang Kayu Terhadap Nilai CBR Tenri Angka Arya Anggareksa; A. Rumpang Yusuf; Satriawati Cangara
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.4331

Abstract

Considering that almost all buildings are built on or on the surface of the land, the land must have resistance to the building or the forces that work through the building by stabilizing the quality of the soil. This research aims to analyze the effect of using coffee grounds and wood charcoal on the geotechnical properties of clay soil. The main focus of the research is on changes in the Unsoaked CBR (California Bearing Ratio) value of clay soil due to the addition of coffee grounds and wood charcoal, both of which have binding properties such as coffee grounds which contain organic C (44.87%), N. (1.69%), K(2.49%), Na(0.04%), P(0.18%), pH (5.6) and wood charcoal can improve water and air circulation so that it can bind carbon and reduces soil swelling and shrinkage. The experimental method was used by mixing 10% wood charcoal and variations of coffee grounds 5%, 10% and 15% into clay soil samples. The results of testing the soil characteristics showed that the soil according to AASHTO was clay soil. Meanwhile, according to the USCS classification, this soil is included in the CH category (high plasticity inorganic clay). The results of the research showed that adding 10% Wood Charcoal to the original soil could increase the CBR value by 23.91%, while in the Wood Charcoal variation with the addition of Coffee Grounds by 5%, 10% and 15%, the CBR value decreased by 18.42%. 15.38%, and 9.57%.
Analisis Perencanaan Waktu Pada Proyek Peningkatan Ruas Jalan Bulo-Bungin Di Kabupaten Enrekang Muh Agung Dewa Saputra D; Natsir Abduh; Satriawati Cangara
Jurnal Penelitian Teknik Sipil Konsolidasi Vol. 4 No. 1 (2026): Jurnal Penelitian Teknik Sipil Konsolidasi, Januari 2026
Publisher : Program Studi Teknik Sipil Universitas Bosowa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56326/jptsk.v4i1.4638

Abstract

This study examines the "Review of Time and Labor Schedule Planning for the Bulo-Bungin Road Improvement Project in Enrekang Regency" which has the aim of knowing the duration of time and how much optimal labor is needed or required in the Bulo-Bungin road improvement project in Enrekang Regency. This research uses quantitative research to analyze data obtained from project sites and related documentation. The analysis method used in this research is Critical Path Method (CPM). Where Critical Path Method (CPM) is used to prioritize project activities or activities. The results showed that using the Critical Path Method to plan the project's time and labor schedule was more effective, because the duration of the work time was 8 days faster than before using the s-curve says it takes 140 days.
Co-Authors A. Rumpang Yusuf Muh Agung Dewa Saputra D Natsir Abduh Tenri Angka Arya Anggareksa