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Gunawan Wibisono
Universitas Riau
Agriculture, Biological Sciences & Forestry Arts Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation

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Rancangan Lereng Tambang Batu Bara Terbuka Dengan Metode Probabilistik Frans Rezal; Muhamad Yusa; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Coal was a fossil fuel. The general sense was a combustible sedimentary rock, formed from the deposition of organic matter, primarily the remains of plants and were formed through the process of coalification.One of the coal deposits was in Bangko Tengah Suban Jeriji, Muara Enim Regency, South Sumatra Province. This research examines the design of the mine pit geometry by taking into account safety andeconomic factors with probabilistic methods. The geometry of mining that was used in this design include high levels of 18 meters and a width of berm 29 meters.The result of analysis show slopes for the singleslope 1:0.50 for overburden, interburden, and underburden, 1:0.75 for seam D, and 1:1.00 for seam E. The oveall slope have a depth of 200 meters with an angle of 27o for Highwall and 12o for Lowwall. The Safetyfactor obtained in this design are 2.101 with PoF 0% for Highwall and 3.575 with PoF 0% for Lowwall. There are 4 inter-ramp on this design with safety factor 1.260, 1.569, 3.495, and 3.455. All of inter-ramphave PoF 0%. The value of the stripping ratio of this design is 12.812.Keyword: Single Slope, Overall slope, FK, PoF.
Pengaruh Penambahan Bahan Alami Lateks (Getah Karet) Terhadap Karakteristik Beton Aspal Lapis Pengikat Dengan Pengujian Marshall Suci Cahya Ferdilla; Gunawan Wibisono; Alfian Malik
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

In Indonesia, flexible pavements quite often occured prematurely. A good quality of pavement needs materials that fulfill a specification, and sometime also requires additional modifier. Rubber can be used to modify and increase of asphalt concretes quality. The addition of rubber is able to improve shear resistance at high temperatures, prevent cracks, bleeding, stripping, and permanent deformation of asphalt concretes. This study try to investigate the effect of natural rubber latex addition on a binder course typed asphalt concrete (AC-BC) based on volumetric properties of Bina Marga Specification Revision 3. The latex contents used as bitumen substitution were 0%, 4%, 6% and 8% of bitumen content. The results showed that the addition of rubber latexdecreased the optimum asphalt content and increased mixture densities. A maximum of 6% latex content could be used as bitumen substitution, where its Marshall characteristics still met the specification.Keyword : Rubber Latex, Laston AC-BC, Marshall characteristics, Specification ofBina Marga 2010 Revision 3.
Pengaruh Penggantian Bahan Pengisi Semen Dengan Kombinasi Abu Bata Dan Abu Sekam Padi Pada Campuran Aspal AC-WC Rahmi Afifi; Alfian Malik; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Asphalt concrete wearing course (AC-WC) is the top layer in flexible pavement. Asphalt concrete is a mixture of asphalt, coarse aggregate, fine aggregate and filler. Many types of filler have been used to improve asphalt concrete performance. In this research, a combined of brick ash and rice husk ash was used as filler. As wasted products, this mixed filler can be used as an alternative replacement of Portland cement due to their similar chemical compounds. The objective of this research is to analyze Marshall characteristics (stability, flow, volumetric properties and Marshall Quotient) of an ACWC mixture containing a combination of Portland cement and a mixed of 40% brick ash and 60% rice husk ash as filler. Ratios of cement and the mixed ash used were 100:0, 50:50, and 0:100. After obtaining the optimum asphalt content for each different filler variation, Marshall test were performed to obtain flow, stability and density values. The result of tests showed that the composition of filler 50:50 gives Marshall characteristics with stability value of 1250,5 kg and air void of 4,846%. The composition of filler 0:100 gives Marshall characteristics with the highest stability value of 1692,9 kg and the smallest air void of 4,533%, which satisfied the specifications of Bina Marga 2010 Revision 3. Keywords: rice husk ash, brick ash, AC-WC, filler
Stabilisasi Tanah Lempung Dengan Pasir Bermacam Gradasi Dan Campuran Kapur M. Shoffar Al Hafizh; Gunawan Wibisono; Soewignjo Agus Nugroho
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Unconfined compression strength and CBR values of sandy clay are influenced by several factor such as sand and clay content, soil properties, density, moisture content, and gradation. This research tries to figure out the effect of sandy clay gradation on its unconfined compression strength and CBR values. Sandy clay mixtures were made from different percentage of sand and clay fractions. Sand fraction gradation varied from well to poor (gap). Clay was also stabilized with quick lime. The results of this research indicated that the addition of sand and lime into clay increased unconfined compression strength and CBR values, especially after 28 days curing time. The largest value of unconfined compression strength test occurred at mixture with 70% clay, due to the cohesiveness obtained from clay and lime stabilisation. The largest CBR values were found in the mixture with less contained clay.Keywords: unconfined compression strength,CBR, gradation, density, sand, clay
Kuat Tekan Dan Porositas Beton Pcc Menggunakan Crumb Rubber Dan Abu Sekam Padi Dengan Air Gambut Sebagai Mixing Dan Curing Water Arief Rijaldo Fajri; Monita Olivia; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This study investigates the effect of peat water used on concrete with crumb rubber and rice husk ash as a mixing and curing water. The tests carried out were compressive strength and porosity for 28 days of curing. PCC concrete and PCC with crumb rubber and rice husk ash (PCC-CR-RHA) mixed and cured by clean water as a control, while the other variation were PCC-Peat and PCC-CR-RHA-Peat that are mixed and cured by peat water. PCC-CR-RHA concrete contains 5% of crumb rubber from mass of fine aggregate and 10% of rice husk ash from mass of cement. The results showed that the average compressive strength of both PCC and PCC-CR-RHA with clean water at 28 days were 35,43 MPa, while peat concrete were 16,1% lower with value at 29,72 MPa. The porosity of the specimens with clean water were 10,4% lower than the specimens with peat water. PCC-CR-RHA concrete with peat water had 90% of compressive strength (f’c) and more durable on peat water than PCC concrete showed by porosity test. The results of tests indicated that peat water can be used for mixing and curing water on PCC-CR-RHA concrete.Keywords : Peat water, crumb rubber, rice husk ash, compressive strength, porosity, rigid pavement, peat soil
Pengaruh Penggunaan Abu Bata Dan Semen Sebagai Bahan Pengisi (Filler) Terhadap Uji Karakteristik Marshall Pada Campuran Laston Lapis Antara (AC-BC) Fachrul Willian; Muhammad Shalahuddin; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Asphalt concrete is a mixture of asphalt, coarse aggregate, fine aggregate and filler. Many types of filler have been used to improve asphalt concrete performance. In this research, a combined ofbrick ash and portland cement was used as filler. As wasted products, this mixed filler can be used as an alternative replacement of Portland cement due to their similar chemical compounds. Thespecifications used follow the 2010 revision 3 Bina Marga General Specifications standard using the Marshall method. This research combined brick ash and portland cement at ratio of 0:100,25:75, 50:50, 75:25 and 100:0, asphalt content varied were 5%, 5.5%, 6%, 6.5% and 7%. The optimum fillers contents for each variation i.e. 6.08%, 6.43%, 5.83%, 6.20% and 5.50%respectively. The results present that all variations fulfill specification. The variation suggested as a mixture is a variation off 100:0, because that variations fulfill the specified spesifications economically.Keywords: portland cement, brick ash, AC-BC, Bina Marga Specifications 2010 Revision
Pemanfaatan Limbah Oil Sludge Untuk Campuran Beraspal Jenis Laston Pengikat (AC-BC) Dengan Pengujian Marshall) Trivia Ariska; Gunawan Wibisono; Alfian Malik
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Abstract

Petroleum industry has an important role in supplying fuel necessaries. In process to produce pretoleum crude oil into various of petroleum based products also emerged waste products includesolids, liquids and gases. Solid waste products which found from poduction activities of the industry produce called Oil Sludge. Oil sludge is categorized as hazardous and toxic waste (B3) because the characteristic and the concentration can contaminate the environment. This research aims to investigate the potential of oil sludge as a partial replacement of asphalt in Asphalt Concrete -Binder Course (AC-BC). In this study the variation of oil sludge addition was 0%, 4%, 6% and 8% of the weight of asphalt. The addition of oil sludge decreased the optimum asphalt content (OAC) and increased the unit weight of the asphalt concrete mixture. This is caused by the fine grains contained in the oil sludge. Based on the Marshall characteristics test results, the maximum allowable content of oil sludge that could be used was 4% with 6.65% of OAC and 948,03 kg of average stability value which satisfied the specifications of Bina Marga 2010 Revision 3.Keyword : oil sludge, asphalt concrete, AC-BC, marshall, Specification of Bina Marga 2010 Revision 3
Pengaruh Pemanfaatan Abu Kulit Kerang Sebagai Filler Terhadap Stabilitas Campuran AC-WC Febri Paramitha Ramadhani; Alfian Malik; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
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Abstract

In the highway pavement, fillers have the smallest parts if be compared to coarse and fine aggregates. Fillers that commonly used are Portland cement, limestone, stone ash and fly ash which is relatively expensive. Therefore, there is a need for research by using other alternative materials such as shellfish ash (AKK) which is one of the waste materials that have similar characteristics to cement. The purpose of this study was to test the performance of clamshell ash fillers in AC-WC mixtures that eligible Marshall requirements based on Bina Marga Specification 2010 Revision 3 method using shellfish ash used as fillers in ACWC mixtures. The type of bitumen used in this study is asphalt with penetration of 60/70. In this study, the filler proportion used were 0%, 2%, 4%, and 6% of the total weight of the aggregate mixture. Tests were carried out by using the Marshall test with a variety of treatment periods of 1 day, 4 days, 7 days and 28 days of immersion at 600C temperature. The results showed that Marshall durability with variations in the addition of shellfish ash by 2% with optimum bitumen content 6.3%, has the lowest durability value of 12,95%. While the variation of the addition of shellfish ash by 2% with optimum bitumen content 6.3%, has the highest durability value of 25,28%. This mixture is more resistant to the effects of water on the immersion process. Keywords: Shell ash, AC-WC, Bina Marga Specification 2010 Revision 3, durability
Penggunaan Abu Kulit Kerang Sebagai Bahan Pengisi (Filler) Dalam Campuran Aspal Jenis Ac-Wc Dengan Pengujian Marshall Fandy Agisman; Alfian Malik; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

In asphalt concrete mixture. Filler has the smallest percentage composition compared to coarse and fine aggregates. Portland cement, lime stone ash and fly ash are commonly used as filler but they are relatively expensive. Therefore, it is composition to find alternative cheap materials. Clam shell ash is one of those materials that can be found relatively cheaper. The aim of this research is to examine the performance of clamshell ash filler in Asphalt Concrete Wearing Course (AC-WC) mixture that comply with Bina Marga 2010 revision 3 spesification. The type of asphalt used in this research is Pen 60/70. In the determination of KAO, the approximate variations of optimum asphalt content were 5%, 5.5%, 6%, 6.5% and 7%. Clamshell ash proportion used 0%, 2%, 4%, 6% and 8%.The results of this study showed that the performance of AC-WC mixture using shell ash filler has better stability value than without it. Recommended shell ash filler content for AC-WC mixture that comply with the spesification is 4%.Keywords: shell ash, General Specification of Bina Marga 2010, filler, Marshall, AC-WC
Pengaruh Pasir Pulau Bungin Kabupaten Kuantan Singingi Pada Campuran Laston Lapis Fondasi/Asphalt Concrete Base (AC-BASE) Arief Rahman; Sri Djuniati; Gunawan Wibisono
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Abstract

Sand of Pulau Bungin is a natural sand that comes from Batang Kuantan River, Kuantan Singingi Regency. The existence of sand of Pulau Bungin makes development progress in Kuantan Singingi Regency because easily obtained, and more economical no need to bring sand material from other area and not have to go through stone breaking process by stone crusher. Based on the Bina Marga Specification 2010 Revision 3, the use of natural sand for asphalt concrete mixture (AC) should not exceed 15% of the total aggregate mixture weight. Therefore, we need to know the efficiency of using natural sand in concrete asphalt mixture (AC) for optimal utilization. This research aims to find out the optimum asphalt (KAO) and to know Marshall's characteristics whether to meet the Bina Marga Specification 2010 Revision 3. The natural fine aggregate variation of sand used in this research is 0%, 5%, 10%, 15% and 16 % of the total weight of the aggregate mixture. The addition of natural sand in the asphalt concrete mixture of the asphalt concrete base (AC-Base) causes the value of optimum asphalt (KAO) to decrease. On the mixture asphalt concrete base (AC-Base), 5% of the sand content of the 5% content of the optimum asphalt content (KAO) was increased by 6,20% and the largest stability was 3341 kg. Without considering the limits of natural sand usage as set out in the Bina Marga Specification 2010 Revision 3 then the addition of natural sand is still possible in the asphalt concrete base (AC-Base) until 16%.Keywords: Natural sand, asphalt concrete base (AC-Base), a general Specification Bina Marga 2010 Revision 3 and characteristics of Marshall.
Co-Authors Abdurrahman, Habib Abrar Rifqi Pratama Afdal Afdal Agus Ika Putra Agus Nugroho, Soewignjo Ahmad Fajriman Aidi Yani Fitri Ainiyyah Fadhilah Alfian Kamaldi Alfian Malik Alfikri, Nur Ali Imron Rusadi Andarsin Ongko Ardian Yolanda Arief Rahman Arief Rijaldo Fajri Arif Rahman Avrilly Zesthree Mauliza Ayu Nofikasari Dhea Fitra Yofani Dinni Yunike Jasril Edy Saputra Eko Soebowo Erwin Erwin Fachrul Willian Fahri Hafisuddin Fahrurrozi Fandy Agisman Febri Paramitha Ramadhani Ferisma Ratu Giri Ferry Fatnanta Frans Rezal Habib Abdurrahman Hasibuan, Putra S Hengki Tornando Ihsanul Muslim Irvan Arisma Iskandar Romey Sitompul Ismeddyanto, Ismeddiyanto Ismi Siska Rahmayani Kairon Wika Rejeki Sembiring Kamaldi, Alfian Khairil Badry Khairul Umam Leo Sentosa M. Shoffar Al Hafizh Marpaung, Horas Saut Maringan Mia Qoryati Milka Novita Manalu Mohd. Rizki Novianto Monita Olivia Monita Olivia Muhamad Yusa Muhammad Alfaridzi Adfan Muhammad Ikhsan Muhammad Riyan Sabri Muhammad Rizky Muhammad Shalahuddin Muhammad Yusa Muhardi Niko Rizaldi Nur Alfikri Nurwijayanti Ori Patinsyah Qoryati, Mia Rahmi Afifi Rahmi Afifi Ramadhan Yanuari Rezha Yaren Ria Larici Rijaldo, Arief Rinaldi Rinaldi Rizqy Ridho Prakasa Rudy Satriya Pratama Satibi, Syawal Shakila Fuadah Lubis Soewignjo Agus Nugroho Sri Djuniati Suci Cahya Ferdilla Surgaroni uga Trivia Ariska Wicaksono Mahestra Noegroho Zakiyul Fuadi