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Analisis Kinerja Batu Bulat Quarry Takari Sebagai Agregat Kasar Pada Campuran Aspal Beton (HRS-WC Dan AC-WC) Ditinjau Dari Karakteristik Marshall BELA, KRISANTOS RIA; Sianto, Paulus
Jurnal Teknik Sipil Unaya Vol 10, No 2 (2024): Juli 2024
Publisher : Center for Research and Community Service (LPPM) University of Abulyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30601/jtsu.v10i2.5418

Abstract

Perkerasan jalan adalah bagian krusial dari infrastruktur transportasi, mempengaruhi efisiensi, keamanan, dan biaya pemeliharaan jalan. Penelitian ini memfokuskan pada analisis kinerja Batu Bulat Quarry Takari sebagai pengganti agregat kasar pada campuran aspal beton HRS-WC dan AC-WC dengan menggunakan karakteristik Marshall sebagai parameter utama. Sampel material diambil dari Quarry Takari dan diuji di Laboratorium Dinas Pekerjaan Umum dan Perumahan Rakyat, Provinsi Nusa Tenggara Timur. Hasil pengujian menunjukkan bahwa campuran HRS-WC dan AC-WC tidak memenuhi standar Spesifikasi Bina Marga Tahun 2018 Revisi 2 untuk beberapa parameter Marshall seperti VMA, VFA, stabilitas, dan flow. Dengan demikian, kadar aspal optimum (KAO) tidak dapat ditentukan untuk kedua campuran. Penelitian ini mengindikasikan bahwa penggunaan batu bulat sebagai pengganti agregat kasar perlu dievaluasi lebih lanjut untuk menemukan alternatif yang memenuhi spesifikasi yang diperlukan untuk meningkatkan kualitas dan kinerja campuran aspal beton.
Considering Speeding Behavior when Designing a Workable Road Pavement at Downgrade Un-signalized Intersection Sianto, Paulus; Demon, Stephanus Ola; da Costa, Don Gaspar Noesaku
JUTEKS : Jurnal Teknik Sipil Vol 9 No 2 (2024): JUTEKS (Jurnal Teknik Sipil)
Publisher : P3M- Politeknik Negeri Kupang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32511/juteks.v9i1.1221

Abstract

Result of field observation shown that the tendency of riders to exceed speed limit also occurred at downgrade road segments, whereas previous study had reported that even on a flat road only riders with braking ability of 6 m/s2 can be avoided from crash due to the presence of unexpected object suddenly appears at 20 m ahead when traveling at around 60 km/h. This might be triggered by lack of information about pavement, geometrical and traffic condition surrounding. The aim of this study is to identify the accident risk at downgrade road segments due to inappropriate speed choice and/or pavement condition. Accident probability was assessed using the safety factor model, i.e., the ratio of available to minimum stopping sight distances. The minimum stopping sight distance was modified from the AASHTO stopping sight distance model, whilst the available stopping sight distance was determined using the average critical gap acceptance of 35 m obtained from field measurement. From the result of simulation, it was found that only riders with a braking ability of greater than 6.57 m/s2 could avoid crash and/or fatal accident safely. Besides, if the difference in braking ability was around 2 m/s2 then it is required a minimum safety distance of 15.1 m between the following motorcyclists. This strongly indicate that a workable road pavement design should be developed based on appropriate speed limit and/or geometrical condition
Pengaruh Perbedaan Produksi Minimum antara Alat dan Tenaga Kerja terhadap Waktu Penyelesaian, Biaya Proyek, dan Keuntungan Angul, Aurelia Lete; Lulu, Laurensius; Bela, Krisantos Ria; Sianto, Paulus; Manubulu, Christiani Chandra; Usboko, Gregorius Paus
Local Engineering Vol. 3 No. 1 (2025): June
Publisher : CV. Gio Architect

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59810/lejlace.v3i1.155

Abstract

A project is a detailed series of activities within a limited timeframe aimed at achieving specific objectives. Resources such as manpower, equipment, materials, money, and time are crucial for project success. The research objective is to determine the impact of minimum production differences between equipment and labor on project completion time, costs, and profits. The completion time for the binder course work item, based on labor and equipment, is 0.83 days, with a minimum production used of 10,000 liters. Conversely, based on equipment's minimum production, the completion time is 0.47 days, with a minimum production used of 17,500 liters. This shows a difference in completion time of 0.35 days with a reduction of 0.43%. According to the Bill of Quantities (RAB) data, the project cost is lower compared to the project cost based on labor, equipment, and labor and equipment combined. The initial profit according to the Bill of Quantities data is Rp 337,328,068.10, and the profit based on minimum labor production is Rp 145,723,835.86, resulting in a profit decrease of -56.80%.