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All Journal Media Ilmiah Teknik Sipil Pilar Teknologi : Jurnal Penelitian Ilmu-ilmu Teknik
Jawara, Kholiddien Tyas
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Civil Engineering, Building, Construction & Architecture

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Abu Ampas Tebu Pengurang Semen Dalam Paving Jawara, Kholiddien Tyas; Winalda Purnama, Pramudya Fathoni; Prasetyo, Olga Donny; Tristono, Tomi
JURNAL PILAR TEKNOLOGI : Jurnal Ilmiah Ilmu Ilmu Teknik Vol 3, No 2 (2018): JURNAL PILAR TEKNOLOGI
Publisher : LPPM Universitas Merdeka Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33319/piltek.v3i2.17

Abstract

Cement is a basic requirement that is always needed in the construction work. Every year the price of cement has increased. In this experimental study using ash waste bagasse to reduce the amount  of cement in paving by substituting it. Variations in the composition of the addition of bagasse ash are 0%, 5%, 10%, 15%, 20%, 25% of cement volume and with a ratio of 1: 4, i.e., 1 cement and 4 sand. Based from the results of compressive strength analysis, water absorption, and density, the paving with a mixture of ash-bagasse gain of 5% is the best when compared to other mixtures. The result are a compressive strength of 34.63 MPa, the water retention capacity of 2.12% and the density of 1.39 gr / cm3. The paving with a mixture of 10% bagasse ash yielded a compressive strength of 33.84 Mpa, the water retention capacity of 2.23% and the density of 1.37 g / cm3, indicating that 10% ash addition had the same paving test results without the addition of ash bagasse. In SNI 03-0691-1996, paving with the addition of bagasse ash by 5% and 10% including as the paving of quality B. Keywords : ash of waste bagasse, paving, pozzolan.
Analisis Manfaat Ekonomi Rencana Pelebaran Jembatan Mangunharjo Kota Madiun Ditinjau Dari Sisi Lalu Lintas: Analysis Of The Economic Benefits Of The Mangunharjo Bridge Widening Plan In Madiun City From The Traffic Perspective Jawara, Kholiddien Tyas; Ansusanto, J. Dwijoko
Media Ilmiah Teknik Sipil Vol. 13 No. 3 (2025): Media Ilmiah Teknik Sipil
Publisher : ​Institute for Researches and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/mits.v13i3.11041

Abstract

The Manguharjo Bridge has a traffic width of 6.50 m (two lanes in two directions) and is prone to congestion due to high traffic flow and limited road capacity. Congestion causes economic losses, environmental pollution, and energy waste. The Madiun City Government has proposed widening the bridge to address these issues. Based on this overview, a study is needed to assess the economic benefits of the Manguharjo Bridge widening plan. This research uses a quantitative methodology to analyze the benefits of widening the Manguharjo Bridge with two alternative lane widths over the bridge's 75-year lifespan. Primary data includes geometric surveys, traffic volume, and land use. Secondary data includes vehicle growth, time value, and vehicle component prices. Traffic performance analysis uses PKJI 2023, traffic forecasting, Vehicle Operating Cost and time value savings to evaluate the project's benefits. Based on the analysis results, Alternative 1 yields Vehicle Operating Cost savings of IDR 1,504,929,465,276 and time value savings of IDR 8,672,188,817,959. Alternative 2 achieved Vehicle Operating Cost savings of Rp3,903,545,756,479 and time value savings of Rp9,852,675,485,931. The results of the above analysis show that Alternatives 1 and 2 have good economic efficiency, which will be used for evaluation in determining the width of the traffic lanes on the Manguharjo Bridge.
Co-Authors J. Dwijoko Ansusanto Prasetyo, Olga Donny Tomi Tristono Winalda Purnama, Pramudya Fathoni