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Pengaruh Penambahan Limbah Karbit Dan Variasi Abu Serabut Kelapa Terhadap Kuat Geser Aprilia Getruda Rumngewur; Pebrinar Riani Sangle; Wong, Irwan Lie Keng
Paulus Civil Engineering Journal Vol. 7 No. 2 (2025): Paulus Civil Engineering Journal V7N2 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/4g0r1n55

Abstract

Recently, various ways have been developed to improve the soil conditions to increase soil stability. These soil improvements have been widely implemented and have shown positive results. In this research, researchers carried out soil improvement using carbide waste and fiber ash as additional materials. This research aims to determine the characteristics of the soil on Jl. Poros Lembang Kole Palian, Bittuang District, Tana Toraja Regency, South Sulawesi. This research was carried out using an experimental method, namely testing soil characteristics with soil mechanical testing. From the results of the soil mechanical testing obtained, the value obtained after testing the shear strength at a variation of 12% + 5% ash had three samples with an average = 0.449 kg/cm². The value for the variation of 12% carbide + 10% ash has three samples with an average = 0.585 kg/cm². The value for the variation of 12% carbide + 15% ash has three samples with an average = 0.615 kg/cm². Based on this research, it was concluded that the increase in soil shear strength values ​​with the addition of carbide waste and coconut fiber ash indicates that this addition can be used as a soil stabilization material.
Analisis Kinerja Lampu Lalu Lintas Pada Persimpangan Jalan Hasanuddin–Jalan W.R Supratman Timika–Papua Tengah Delu, Frederik Irsan; Pebrinar Riani Sangle; Ayu Kusuma
Paulus Civil Engineering Journal Vol. 7 No. 3 (2025): Paulus Civil Engineering Journal V7N3 2025
Publisher : Universitas Kristen Indonesia Paulus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52722/jrns0k02

Abstract

Titik sentral lalu lintas adalah simpang yang dilengkapi lampu lalu lintas, terletak di pertemuan jalan. Pentingnya lampu lalu lintas pada setiap persimpangan agar kendaraan dapat dengan mudah melalui persimpangan dan mencegah atau mengurai kemacetan.  Penelitian ini bertujuan untuk menganalisis simpang jalan Hasanuddin-W. R Supratman berdasarkan metode MKJI 1997. Hasil penelitian diperoleh data maksimum satuan mobil penumpang perjam adalah 607,3 smp/jam, nilai ini masih berada dibawah ambang batas yang dianjurkan oleh MKJI 1997, dimana nilainya antara 2500-5400 smp/jam. Dari hasil analisis dapat disimpulkan bahwa jalan Hasanuddin - jalan W R Supratman belum layak menggunakan simpang bersinyal.