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Sefrus, Tri
Universitas Prof. Dr. Hazairin, SH
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Journal : Majalah Teknik Simes

 1 
Estimasi Demand Angkutan Barang Shortcut Padang – Solok dari Peralihan Moda Truk ke Kereta Api Sebagai Bahan Pertimbangan Proyek Kerjasama Pemerintah Swasta (KPS) Tri Sefrus
MAJALAH TEKNIK SIMES Vol 9 No 2 (2015): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Abstract

Commodity movement area of Jambi, Riau and West Sumatra eastern part transported by road transport with the same line, namely Padang - Solok. The transport flow reached 8158 vehicles with payloads reached 2,338,834 tons per year (Department of Communication and Information, 2011). The traffic flow is causing congestion and road damage. To that end, it is necessary to limit the load of freight trucks. One of them with modal shifts to rail. And one of the technical aspects to be considered, is taking into account the number of requests (estimated demand) in the long term. Estimates of origin destination matrix made by the method of Gravity types without limitation, by using secondary data from the Department of Transportation West Sumatra Province. From the estimation, predictable amount of freight that passes through Padang - Solok in 2015 amounted to 2.29512 million tons with a growth rate of 1.52% per year. So predictable amount of freight in 2040 amounted to 3.34632 million tons / year.
ANALISA PENAMBAHAN GETAH DAMAR BATU (AGATHIS ALBA) PADA CAMPURAN ASPHALT CONCRETE-BINDER COURSE (AC-BC) Tri Sefrus
MAJALAH TEKNIK SIMES Vol 7 No 1 (2013): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Research on the analysis of the resin stone resin on the concrete asphalt-binder course mixture (AC-BC) is motivated by resin vibration with asphalt, ie high viscosity and strong bonding power among particles and resin content in resin gum. Therefore, it is necessary to find out the effect of sap damar stone 0%; 1.5%; 2.5% and 3.5% of asphalt content on marshall characteristics in AC-BC samples. The method used is laboratory study with Marshall test equipment. The test was done with 24 hours fresh water immersion and waterbath 60 oC for 30 minutes. The results after Kao reflect a direct proportion of freedom relative to the addition of resin sap, which is 1663 kg; 1914 kg; 1961 kg and 2040 kg. Similarly, the VFA (67,046; 68,251; 73,115 and 74,397) and the marshall quota (457; 590; 589 and 658). In contrast to stability, the actual VMA is inversely proportional (5,766; 15,530; 14,642 and 14,43) and the melt is changed parabolically (3.64 mm; 3.83 mm; 3.33 mm and 3.10 mm) and the VIM b is unstable (3,828; 4,201; 3,741 and 3,911) respectively. These conditions make it possible to get the right price to compare AC-BC, and the optimal percentage at the time of resin of 3.5%
Studi Kebutuhan Instalasi Pengolahan Air Limbah (Ipal) Tempat Pembuangan Akhir Sampah Dengan Geomembrane Kota Bengkulu Oscar Hidayat; Tri Sefrus; Meilani Belladona
MAJALAH TEKNIK SIMES Vol 15 No 2 (2021): Juli 2021
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (844.439 KB) | DOI: 10.32663/simes.v15i2.2072

Abstract

Based data from Bengkulu Environmental centre in 2019, it is known that the volume of waste for Bengkulu city residents per day reaches 373.07 m3/day. The amount of water that enters the Air Sebakul TPA causes leachate to collect quickly and then moves to dissolve into the ground. The absence of waste water treatment plant at this landfill causes contamination of surface water and ground water. Especially when it rains, the leachate will flow into the drainage channels of residents around the TPA which causes an unpleasant odor. The purpose of this research ia to determine the ned for WWTP (waste water treatment plant) at the Air Sebakul TPA Bengkulu by using geomembrane layer. The method of the study uses a survey method with forecasting using geometric formulas and mononobe while the data validation test uses a tracking signal approach.The results of this study show that the prediction of the Bengkulu city waste heap and leachate discharge for the next five years is 792.746,35 (m3/year) or 9.972 m3/day. Based on the current land capacity which has an area of + 30.000 m2, The air Sebakul TPA is declared capable of accommodating waste for the next years. While the planning for the next ten years with waste generation reaching 1.728.810, 26 (m3)/year is declared unable to accommodate waste.Therefore, a large-scale land expansion is needed from the existing land availability, as well as a larger IPAL storage capacity.
Studi Pengembangan Rute Penerbangan Terintegrasi Di Indonesia Tri Sefrus
MAJALAH TEKNIK SIMES Vol 14 No 2 (2020): Majalah Teknik Simes
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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Abstract

Abstract Air passenger demand in Indonesia has continued to increase since the last decade. According to IATA Indonesia will become the world’s six largest airline travel market by 2034. One of the impacts that is currently felt is the high flight delay. The efforts that have been carried out so far in anticipation of increasing the number of passengers and airport overcapacity are through the development of existing airports; both terminal expansion and runway upgrades. In fact, physical development can not be carried out continuous airport development alternative through integrated flight routes.
Studi Karang Mati Sebagai Pengganti Agregat Kasar Pada Adukan Beton Hendy Ramadana Putra; Tri Sefrus
MAJALAH TEKNIK SIMES Vol 16 No 2 (2022): Vol 16 No 2 (2022): Majalah Teknik Simes Volume 16 Nomor 2 Juli 2022
Publisher : UNIVERSITAS PROF. DR. HAZAIRIN, SH BENGKULU

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In this area Kaur is an area located in the southern coastel area of Bengkulu Province,The main problem of this research is that there are many dead corals that are not utilized by the surrounding population. The purpose of this research is the number of dead corals, so that they only become coastel waste. The method used is a laboratory test that is guided by SNI 03-1969-1990. Based on the results of the compressive strength of concrete it is known that the coarse agregate of dead coral used is a mixture of 60%. The study used the composition of 1 cement, 1.6 sand, 2.5 coral in the composition of concrete. The results show that the concrete is 60% more improved than the other concretes.
Co-Authors Aprizon, Windra Belladona, Meilani Cristy Pujianti andriyani Dewanti . Dewanti ., Dewanti Diana, Elviza Dwiantoro, Edito Edito Dwi Antoro Gusti, Aldila Anugrah Hendy Ramadana Putra Jhordi Hendarwan Muchammad Zaenal Muttaqin Muhammad Subair Muhammad Zudhy Irawan, Muhammad Zudhy Muttaqin, Muchammad Zaenal Oscar Hidayat Pandu Winata, Carles Pujiastuti, Elly Tri Sazuatmo Sazuatmo Sazuatmo, Sazuatmo Sigit Priyanto Sigit Priyanto Subair, Muhammad Susetyo, Cahyono Syaputra, M.Taufik Akbar Tonadi, Een Yoggi Hendra Safutra Yori Herwangi, Yori