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Rosyad, Farlin
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ANALISIS PENATAAN PARKIR KAWASAN PERKANTORAN PEMERINTAH KOTA PALEMBANG DI RUAS JALAN MERDEKA Rusedky, Muhammad; Rosyad, Farlin; Prawira, Wanda Yudha; Mulyati, Ely
Ensiklopedia of Journal Vol 8, No 1 (2025): Vol. 8 No. 1 Edisi 1 Oktober 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i1.3421

Abstract

The increasing population and vehicle ownership in Palembang City, particularly in the Government Office area along Jalan Merdeka, have caused significant parking shortages. This situation forces many vehicles, both from employees and visitors, to use on-street parking, which disrupts traffic flow. This study aims to analyze parking characteristics, including volume, accumulation, duration, turnover rate, parking index, current parking demand, and projections for the next five years, as well as to identify effective parking arrangement alternatives. The research method involved a five-day field survey on weekdays at three main locations, measuring existing parking capacity, recording vehicle entries and exits, and analyzing parking characteristics based on the Technical Guidelines for Parking Facility Management (Directorate General of Land Transportation, 1996). The results indicate that the existing parking capacity does not meet the standard Space Unit for Parking (SRP), with an average parking index exceeding 100% for both two-wheeled and four-wheeled vehicles. This condition highlights the urgent need for additional or optimized parking spaces. Recommended solutions include developing centralized parking facilities, implementing multi-story or mechanical parking systems, and applying scheduled parking management to improve efficiency and reduce congestion. Keywords : Parking, Capacity, Parking Index, On-Street Parking
ANALISIS CAMPURAN ASPAL AC-WC PG 76 DENGAN ADDITIONAL FILLER ABU BAMBU TERHADAP FLEKSIBILITAS DAN DURABILITAS Sidiq, Abdi Rachman; Rosyad, Farlin; Mulyati, Ely
Ensiklopedia of Journal Vol 8, No 1 (2025): Vol. 8 No. 1 Edisi 1 Oktober 2025
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i1.3415

Abstract

Highways are an essential land transportation infrastructure, and the quality of pavement must be maintained to ensure performance and service life. One effort to improve the quality of flexible pavement on the Asphalt Concrete-Wearing Course (AC-WC) layer is by utilizing alternative materials as filler. This study examines the effect of adding bamboo ash as an additional filler in AC-WC mixtures with PG 76 asphalt on flexibility (flow) and durability (Marshall Retained Stability). Bamboo ash contains silica (SiO₂) and exhibits pozzolanic properties, which have the potential to enhance mixture performance. The bamboo ash content variations used were 0%, 0.5%, 1.0%, 1.5%, and 2.0% by the total aggregate weight, with testing conducted using the Marshall Test method. The results showed that the addition of 0.5% bamboo ash increased the flow value from 3.32 mm to 3.52 mm, while further additions above this level did not result in additional flexibility improvement. All mixture variations had Marshall Retained Stability values above the minimum requirement of PU Bina Marga 2018 Revision 2 (≥90%), with the highest value recorded at 0.5% (91.47%). Based on the balance between flexibility and durability, the optimal bamboo ash filler content for AC-WC PG 76 is 0.5%.Keywords : AC-WC, bamboo ash, PG 76 asphalt, flexibility, durability, Marshall Test.
ANALISIS PENGUJIAN PENAMBAHAN BAJA RINGAN UNTUK MENINGKATKAN KUAT LENTUR BETON Rosyad, Farlin; Winanda, Ario Tri
Rang Teknik Journal Vol 7, No 2 (2024): Vol. 7 No. 2 Juni 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i2.5473

Abstract

This research aims to determine the results of the effect of adding pieces of tire rubber on the flexural strength of concrete. This research was conducted at the Civil Engineering Laboratory, Campus C, Bina Darma University. The object used in this research is the effect of adding light steel pieces on the flexural strength of concrete with percentages of 5%, 10% and 15%. The results of research and analysis regarding the influence of adding light steel pieces on the flexural strength of concrete in the form of small pieces measuring 2 cm long and2 mm wide have a very positive impact on the flexural strength value, this is in line with the increase in the flexural strength value for each percentage of the object. tests such as normal concrete have an average flexural strength value of 3.25 Mpa, the 5% percentage has an average flexural strength value of 6.41 Mpa,the 10% percentage has an average flexural strength value of 7.40 Mpa, and15%has an average flexural strength value of 5.59 Mpa, meaning there is an increase in the normal concrete flexural strength value of 3.25 Mpa. So these pieces of tire rubber have a positive effect and are suitable as an alternative addition to modified concrete mixes, and are suitable for use in structural concrete beams in residential buildings, house foundations and bridges.
ANALISIS PENGARUH KEHALUSAN ABU TERBANG (ABU SEKAM PADI) TERHADAP DURABILITAS DAN FLEKSIIBILITAS AC-BC NR Rosyad, Farlin; Febriansyah, Febriansyah
Rang Teknik Journal Vol 7, No 2 (2024): Vol. 7 No. 2 Juni 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i2.4737

Abstract

Construction progress, whether for buildings or roads, can be used to determine how well an area is performing. The development of an effective transportation system can facilitate the entry and exit of raw materials or finished goods to other areas, improving the economy of local communities as a whole. The method used in this research is by adding a percentage of rice husk ash of 0% (as a comparison), 4%, 6% and 8% as a substitute material for the fine fraction in the AC-BC nr asphalt mixture. To determine the effect of the fineness of rice husk ash on the durability and flexibility of AC-BC (Asphalt Concrete – Binder Course) nr. To find out what the optimum level of variation of rice husk ash mixture is as a substitute material for AC-BC (Asphalt Concrete - Binder Course) asphalt mixture nr.. The optimum residual flow value in the 2-4% zone is 3.9 mm, while the lowest residual flow value decreased in the 3-8% zone with a value of 3.07 mm. Flow values that are below the minimum limit cause cracking and low durability. The highest residual marshall value is in the 2-4% zone with a value of 96.68%, while the lowest residual marshall value is in the normal range with a value of 91.69%. The minimum requirement for residual marshall is 90%.Keywords: Rice husk ash, Asphalt sir-20, Flow, Residual Marshall, Durability, Flexibility.
ANALISIS PENGARUH FILLER ABU KULIT KOPI TERHADAP STABILITAS DAN KEPADATAN ASPAL AC – WC NR Rosyad, Farlin; Pranata, Heru
Rang Teknik Journal Vol 7, No 2 (2024): Vol. 7 No. 2 Juni 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i2.5474

Abstract

The filler material in the asphalt mixture has the function of increasing the binding capacity of asphalt concrete, so it can improve stability, the filler mixture can fill the voids between the aggregate particles (Fauziah, 2014). If the material is tested for sieve analysis, it must pass the N0 sieve. 200. In this study the author used coffee husk ash as an asphalt filler, coffee husk ash is the result of burning coffee husk waste after grinding coffee, and the characteristics of this coffee husk ash are not fully utilized, so that with this coffee husk ash can be used as a variation in the use of asphalt filler,This research was conducted at the Civil Engineering Study Program Laboratory, Buchori Building 3, Bina Darma University, Palembang, located on Jl. Jendral Ahmad Yani No. 15, 9/10 Ulu, Lintas Ulu 1 sub-district, Palembang city, South Sumatra. The materials used in this research are as follows: The fine aggregate used is stone ash that passes through sieve no. 8 and stuck no. 200, Coarse Aggregate used is split stone/crushed stone retained on filter no. 8, Rubber Asphalt Sir 20 obtained from PT. Sumatra Bitumen Modification, Jl. Across Sumatra Muara Enim – Prabumulih, the coffee skin ash is ground by pounding it so that the coffee skin ash can pass through filter no. 200 and can then be used as a filler. Found in Lubuk Dalam Village, Tanjung Sakti PUMI, Lahat Regency, South Sumatra.Reviewing the test results from variations in coffee skin ash, it can be concluded that the influence of the density value on the optimum coffee skin ash is at a percentage of 2% with a value of 2.242 gr/cc. Meanwhile, based on the Marshall parameter test results in terms of variations in coffee skin ash, it can be concluded that the influence of the stability value on the optimum coffee skin ash is at a percentage of 4% with a value of 1679 kg/cmᵌ.
PENGARUH PENAMBAHAN ABU SERBUK KAYU DAN PASIR BERGRADASI KASAR DALAM MENINGKATKAN KUAT TEKAN PAVING BLOCK Rosyad, Farlin; Rahman, Robbani; Prawira, Wanda Yudha
Rang Teknik Journal Vol 7, No 2 (2024): Vol. 7 No. 2 Juni 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i2.4745

Abstract

At present, paving blocks are widely used as building elements for making building construction, especially for yard pavement, parking lots, and environmental roads. Paving blocks are often used because they have good compressive strength properties, can withstand loads within certain limits, longer plan life, and are easy to install. In addition to these advantages, paving blocks are also better than other pavements in terms of economical maintenance, also in terms of the exterior of a building, and also when viewed in terms of environmental sustainability, as a water absorption system. Sawdust is the material (generally powder) that remains from burning wood. Generally, 6-10% of the mass of wood burned produces ash. From the results of research and discussion in the manufacture of paving blocks with wood dust ash additives planned to increase the compressive strength of paving blocks at the age of 28 days, it was found that the compressive strength of normal paving blocks with 0% wood dust ash was 16.08 MPa, while the compressive strength of paving blocks added with wood dust ash with a composition of 5%, 10%, and 15%, produced a compressive strength of 18.05 MPa; 15.24 MPa; 12.20 MPa;. The effect of sawdust ash on the addition of composition materials in the manufacture of paving blocks can increase the compressive strength of the paving block itself. The compressive strength of paving blocks increases after the addition of sawdust ash from the lowest sawdust ash of 0% to 5% ash only, while paving blocks with 10% and 15% sawdust ash experience a significant decrease in compressive strength value from normal sawdust ash. Keywords: Paving Block, Wood Powder Ash
ANALISIS PENGARUH SUBSTITUSI BAN BEKAS TERHADAP STABILITAS DAN KEPADATAN ASPAL AC-WC Rosyad, Farlin; Sapitri, Sinta Bela
Rang Teknik Journal Vol 7, No 2 (2024): Vol. 7 No. 2 Juni 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i2.5475

Abstract

Theautomotiveindustryincreasesalongwiththeincreaseintireproductionwhichresultsinan increaseintirerubberwastethatcannotbeattributedtonaturalfactors.Intuitivewaystosolvethisproblem, innovativewaysareneededtoreducetirerubberwastewhichisincreasingly increasing. Theuseoftire rubberasasubstitute-increasing materialforasphaltisoneoftheintuitivewaystoreduceunusedtire rubberwaste. Itishopedthatasphaltmixedwith rubbertirepieces canactasasubstitute forsimilar materialsandthestabilityoftheasphaltwillincrease.Usedtire rubberwasteisveryeasy tofind,butthis materialisdifficulttofindnaturally.This aims toinvestigatetheimpact of replacingconventionalcoarse aggregatewithusedtirepowderonthestability anddensity oftheAC-WC asphaltmixture.Wastetire powder,which isarecycledproductfrom usedtires,isusedasanadditive inasphaltmixtures toreduce theuseof naturalaggregatesandsupportsustainablerecyclingpracticesintheroadconstructionindustry. Theresearchmethodinvolvesthepreparation ofseveralAC-WCasphaltmixtureswithvaryingratiosof usedtirepowder.Theresultingasphaltmixtureisthentestedusingvariouslaboratory tests,including stabilityand densitytests.Inaddition,analysisofmechanicalpropertiessuchasmodulusofelasticityand tensilestrengthwasalsocarriedouttoevaluatetheperformance ofasphaltmixturescontainingusedtire powder.Basedonthe resultsofMarshallparametertestingintermsofvariationsinused tire substitution, itcanbeconcludedthattheinfluenceofthestabilityvalueonoptimumtirerubberisatapercentageof4% witha valueof1,846kg.Meanwhile,basedonthetestresultsintermsofvariationsinusedtires,itcanbe concludedthattheinfluenceofdensityvalueonoptimumtirerubberisatapercentageof4%witha value of2.377gr/cc.
ANALISIS PENGARUH SUBSTITUSI BAN BEKAS TERHADAP DURABILITAS DAN FLEXSIBILITAS ASPAL AC-WC Rosyad, Farlin; Sakti, Redho Muhammad; Irham, Irham; Wahab, Wahyuni
Rang Teknik Journal Vol 7, No 2 (2024): Vol. 7 No. 2 Juni 2024
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31869/rtj.v7i2.4746

Abstract

The increase in tyre production has led to an increase in tyre rubber waste, which is harmful to the environment. The use of rubber tyres as a substitute additive material in concrete or laston (AC-WC) is one way out to reduce unused rubber tyre waste. The purpose of this research is to determine the effect of the use of used rubber tyres on the Durability and Flexibility values of the laston layer mixture (AC-WC) and to determine the optimum mixture component value for Durability and Flexibility in the laston layer mixture (AC-WC). This research uses experimental methods, namely, quantitative research methods. In this study, researchers used a percentage of used tyre mixture of 1%, 2%, 3% and 4% of the weight of the test specimen and 0% as a normal mixture. The results of this study indicate that the flow value in the standard marshall percentage of used tyre rubber 1% and 2% meets the 2018 revised Bina Marga Specification 2 between 2-4 mm. While the percentage of used tyre rubber 3% and 4% does not meet the 2018 revised Bina Marga Specification 2 between 2-4 mm. Because the greater the percentage of used tyre rubber, the greater the flow value obtained. In Marshall Stability, it can be concluded that the remaining Marshall Stability value of the normal AC-WC asphalt mixture is 90.67%, this value meets the Bina Marga 2018 Revision 2 Specifications with standard Specifications 90%.  Keywords: laston layer mix (AC-WC), durability, flexibility, waste rubber tire, marshall
Co-Authors Achmad Syarifudin, Achmad Aditia, M. Adriansyah Lubis, Rizki Afrindo, Gaga Akbari, Ilham Alhafidz, Muhammad Andini, Novi Tri Anggi Anggraini, Anggi Anggraeni, Marisa Aprizal, Ical Ayuningtia, Noventa Wijaya Aziz, Mohamad Abdul Barokah, Muhammad Dedi Pramono Diki Bahrih, Mohamad Rezeki Dwi Yanti Eka Putri, Eprilia Erwinsyah Erwinsyah Fajri, Bagus Fatoni, Fatoni Febriansyah Febriansyah Filliandi, Ahmad Alpa Firdaus Firdaus Gamara, M. Rizky Rewa Gunawan, Hizkia H. Mukran Roni, H. Mukran Harahap, Edwin Hutami, Peni intan permata sari Irham Irham Jemakmun, Jemakmun Kalsum, Fhelvia Umi Lubis, Rizki Adriansyah Maharani, Pratiwi Meria, Desi Monica, Gita Farera Muhammad Amin Mulyati, Ely Muntaha, Moh. Khoirul Nugraha, Ivan x Oki Putra, Ananda Oktarian, Alvin Paramitha IS, Nina Permata, Sindi Prabowo, Joan Pranata, Heru Prasetyo, Juwanda Pratama, Deni Prawijaya, Muhammad Tarish Prawira, Wanda Yudha Putra, Ananda Oki Putri, Della Rahman, Robbani Raihan, M. Rama Dwi Gantara, M. Merdi Rusmanto Ramadan, Virgia Renzi Ramadhan, Kiagus Ahmad Wildan Rianto, Islamiati Riduan, M. Rizki Hidayat, M. Noor Rusedky, Muhammad Sakti, Redho Muhammad Salsabila, Ranti Sapitri, Sinta Bela Saputra, Ksatria Sari, Anggi Purnama Sari, Diah Novita Sary, Diea Destha Sidiq, Abdi Rachman Sugema, Muarif Suhendra, Alda Beby Syarifuddin, Achmad Tamsir Ariyadi Tunnisa, Rizki Khoiriah Wahab, Wahyuni Wianto, M. Arpando Eko Wijaya, Rizky Putra Winanda, Ario Tri Winata, Wiyeo Yoga Fradana, Muhammad Yudanto, Galuh