Mr Isya

Dr. Mr Isya

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Research Focus & Metrics

Academic Career Length

9Years (2018-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 January 2018 in Jurnal Teknik Sipil
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IWIntan Wirnanda
Intan Wirnanda
RARenni Anggraini
Renni Anggraini
MIMr Isya
Mr Isya
Damage that occurs on some road segment causing huge lossed, especially for road users such as a long travel time, traffic jam, incident, and etc. In general there variety factor that caused of road damage such as age of the road that has been passed, puddle onthe road surface that cannot flow due to the poor drainage, trafic load excessively repetitive (overloaded). Which can cause life time is shorter than planning. Improper planning, poor monitoring and the implementation is not accordance with the existing plan, in addition to the lack of maintenance costs, delays in budget spending and priorities of improper handling also be the cause. It should be noted in order to avoid decreased in the quality of roads due to damage on road surface. The purpose of this study is to determined damage of the road extent/level using PCI method (Pavement Condition Index), determined the effect of road damage to the speed of vehicle using Regression Analysis method. This research take location in the road segment of Blang Bintang Lama road, and Teungku hasan Dibakoi each road is divided into 7 that being reviewed according to the level of damage. Primary data collected by field actual survey in the form of geometric data, extensive damage to the road, and vehicle speed. The results showed that damage of the road is very affected on the vehicle speed as seen on Blang Bintang Lama in V segment the value of PCI is 10 with failed condition and vehicle speed just reached 5.31 Km/h, while in VII segment PCI value is 87 with perfect road condition (excellent) vehicle speed reached to 58.34 Km/h, so that the equation obtained by regression analysis of Y = (3,571)(0,032) ͯ, while for segment in Teungku Hasan Dibakoi road as seen in III Segment PCI value is 4 with failed condition with vehicle speed just 4.95 Km/h, while in the VII segment PCI value is 88 with perfect road condition (excellent) vehicle speed reached to 68.64 Km/h, so the equation obtained by regression analysis of Y is Y= (3,822)(0,035) ͯ. This suggests that higher levels of road damage will affected to slower speed of vehicle, otherwise the lower level of damage road, will make the higher speed of vehicle.Abstrak: Kerusakan jalan yang terjadi di beberapa ruas jalan menimbulkan kerugian yang sangat besar terutama bagi pengguna jalan seperti waktu tempuh yang lama, kemacetan, kecelakaan, dan lain-lain. Secara umum penyebab kerusakan jalan ada berbagai sebab yaitu umur rencana jalan yang telah dilewati, genangan air pada permukaan jalan yang tidak dapat mengalir akibat drainase yang kurang baik, beban lalu lintas berulang yang berlebihan (overloaded) yang menyebabkan umur pakai jalan lebih pendek dari perencanaan. Perencanaan yang tidak tepat, pengawasan yang kurang baik dan pelaksanaan yang tidak sesuai dengan rencana yang ada, selain itu minimnya biaya pemeliharaan, keterlambatan pengeluaran anggaran serta prioritas penanganan yang kurang tepat juga menjadi penyebabnya. Hal ini perlu diperhatikan agar tidak terjadi penurunan kualitas jalan akibat kerusakan permukaan jalan. Tujuan penelitian ini adalah untuk menentukan tingkat dan jenis kerusakan jalan dengan menggunakan metode PCI (Pavement Condition Index), mengetahui pengaruh kerusakan jalan terhadap kecepatan kendaraan dengan menggunakan metode Analisis Regresi. Penelitian ini mengambil lokasi pada ruas Jalan Blang Bintang Lama dan ruas Jalan Teungku Hasan Dibakoi yang masing-masing jalan terbagi atas 7 segmen yang ditinjau menurut tingkat kerusakannya. Pengumpulan data primer dilakukan dengan survey aktual lapangan yaitu berupa data geometrik jalan, luas kerusakan jalan, dan kecepatan kendaraan. Hasil penelitian menunjukkan bahwa kerusakan sangat berpengaruh terhadap kecepatan kendaraan seperti yang terlihat pada ruas jalan Blang Bintang Lama pada segmen V dengan nilai PCI 10 kondisi jalan gagal (failed) dengan kecepatan kendaraan mencapai 5,37 Km/Jam, sedangkan pada segmen VII nilai PCI sebesar 87 dengan kondisi jalan sempurna (excellent) kecepatan kendaraan mencapai 58,34 Km/Jam, sehingga didapat persamaan dengan metode analisis regresi Y= (3,571)(0,032) ͯ, sedangkan untuk ruas Jalan Teungku Hasan Dibakoi terlihat pada segmen III nilai PCI 4 kondisi jalan gagal (failed) dengan kecepatan mencapai 4,95 Km/Jam, sedangkan pada segmen VII nilai PCI sebesar 88 dengan kondisi jalan sempurna (excellent) kecepatan kendaraan mencapai 68,64 Km/Jam, sehingga didapat persamaan dengan metode analisis regresi Y= (3,822)(0,035) ͯ. Hal ini menunjukkan bahwa semakin tinggi tingkat kerusakan jalan maka semakin rendah kecepatan kendaraan, sebaliknya semakin rendah tingkat kerusakan maka semakin tinggi kecepatan kendaraan.

25 October 2023 in Sustainability
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FSFitrika Mita Suryani
Fitrika Mita Suryani
SRSamsul Rizal
Samsul Rizal
AMAbdullah Mahmud
Abdullah Mahmud
MIMr Isya
Mr Isya
Peatlands are more likely to be affected by intense precipitation and soil erosion, thus requiring modifications for stabilized soil and subgrade protection. This experimental study aimed to find a suitable pavement type using fly ash, an unutilized byproduct from coal burning processes, for peatland areas with a low bearing capacity. We designed lightweight concrete specimens using 15% fly ash substitution to be incorporated into rigid pavement construction. The concrete quality was assessed through compressive and flexural strength tests performed at the ages of 7, 14, and 28 days in order to shorten the project durations and prevent further traffic delay. The obtained results suggested that the substitution of fly ash in 15% of the lightweight concrete mixture can be taken into account to achieve a mixture of a lightweight concrete that meets the general specification criteria for cement-treated subbases (CTSBs). Furthermore, the utilization of fly ash as a new material is considered substantial in managing existing waste-related environmental problems, as well as soil stabilization and subgrade protection problems for low-bearing-capacity soil areas.

15 January 2018 in Jurnal Teknik Sipil
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SFSuraya Fitri
Suraya Fitri
SSSofyan M. Saleh
Sofyan M. Saleh
MIMr Isya
Mr Isya
Good asphalt concrete and good care are required for the highway construction, to support the road capabilities and to raise the quality of asphalt mixture, one step is by adding additives into the asphalt. Additive material used plastic bag waste, while Basalt stone used as material that is raw material from hills. Waste plastic bag can be used in various ways, one of them by adding plastic into an asphalt mixture. Mixing plastic waste into the highway construction has two aims, to minimize plastic waste and to improve the quality of roads. This study was conducted to determine the effect of plastic bag waste use as a substitution of Asphalt Pen 60/70 by using Basalt aggregate toward Marshall’s characteristics of asphalt concrete AC-BC mixture. Initial phase of this research was to calculate Optimum Bitumen Content (OBC). The addition of varied plastic bag waste as an additive respectively 2%, 4%, 6%, and 8% in OBC-0.5, OBC, and OBC + 0.5 from the initial OBC of 5.35%. From the three OBCs, it was taken the highest value at OBC +0.5 of 3.3% for the production of test specimens in plastic OPC variation percentage of ± 2% by determining Marshall’s value and durability. Stability value continued to rise in the percentage of plastic bag waste content variation respectively 1.3%, 3.3%, and 5.3% by 1470.48 kg, kg 1476.28, and 1489.28 kg with 30 minutes immersion (temperature = 600C ) and 1286.42 kg, kg 1316.35, 1345.41 kg with a 24-hour immersion (temperature = 600C). This condition is caused by the additive content that is mixed with asphalt pen 60/70 in the mixture, it causes the adhesion of asphalt with aggregate become better until it reaches a certain value limit, which is at the limit of 5.3% with the best stability value of 1489.28 kg in the 30 minutes immersion and 1345.41 kg in 24-hour immersion. From the comparison of both stabilities, the obtained durability values were 99.84%, so that it met specifications for additive-added mixtures, ≥ 90%.Abstrak: Pembangunan konstruksi jalan raya diperlukan beton aspal yang baik dan perawatan yang baik pula, untuk mendukung kemampuan jalan tersebut dan menaikan mutu campuran beraspal salah satunya dengan menambahkan bahan aditif kedalam aspal.. bahan aditif digunakan limbah plastik kresek, sedangkan untuk material digunakan batuan Basalt yang merupakan bahan baku dari gunung. Limbah sampah plastik ini bisa dimanfaatkan dengan berbagai cara, salah satunya dengan cara menambahkan plastik kedalam suatu campuran aspal. Mencampur sampah plastik kedalam kontruksi jalan raya mempunyai dua tujuan, yaitu meminimalkan sampah plastik dan meningkatkan kualitas jalan. Penelitian ini Tujuan Penelitian dilakukan untuk mengetahui pengaruh pemakaian limbah plastik kresek sebagai subsitusi Aspal Pen 60/70 dengan menggunakan agregat bassalt terhadap karakteristik Marshall campuran aspal beton AC-BC. Tahapan awal penelitian adalah mencari Kadar Aspal Optimum (KAO). Penambahan variasi kantong plastik bekas sebagai aditif secara berturut-turut yaitu 2%, 4%, 6%, dan 8% pada KAO-0,5, KAO dan KAO+0,5 dari KAO awal 5,35%. Dari ketiga KAO tersebut diambil nilai yang tertinggi yaitu pada KAO+0,5 sebesar 3,3% untuk pembuatan benda uji pada persentase variasi plastik KPO ±2% dengan mendapatkan nilai marshall dan durabilitas. Nilai stabilitas terus meningkat pada persentase variasi kadar plastic bekas 1,3%, 3,3% dan 5,3% masing-masing sebesar 1470,48kg, 1476,28kg, dan 1489,28kg dengan rendaman 30 menit (suhu 600C) dan1286,42kg, 1316,35kg, 1345,41kg dengan rendaman 24 jam (suhu 600C). Kondisi ini disebabkan oleh kandungan dalam aditif yang bercampur dengan aspal pen 60/70 di dalam campuran menyebabkan daya lekat aspal dengan aregat menjadi lebih baik hingga mencapai batas nilai tertentu, yaitu pada batas 5,3% dengan nilai stabilitas terbaik yaitu sebesar 1489,28kg pada rendaman 30 menit dan sebesar 1345,41kg pada rendaman 24 jam. Dari perbandingan ke dua stabilitas tersebut maka diperoleh nilai durabilitas sebesar 99,84% sehingga telah memenuhi spesifikasi untuk campuran yang ditambahkan aditif, yaitu sebesar ≥ 90%.

1 April 2021 in Communications - Scientific letters of the University of Zilina
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SSSugiarto Sugiarto
Sugiarto Sugiarto
LLLulusi Lulusi
Lulusi Lulusi
MIMr Isya
Mr Isya
FAFadhlullah Apriandy
Fadhlullah Apriandy
FRFuadh Ramadhan
Fuadh Ramadhan
LULulusi
Lulusi
This study aims to explore the constraints of the Travel Costs Budget Frontier (TCBF) before a full-charged fare is implemented for the bus system known as the "Trans Koetaradja" in the city of Banda Aceh, Indonesia. A stochastic fro...

9 December 2018 in Jurnal Arsip Rekayasa Sipil dan Perencanaan
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TFT. Ferdian
T. Ferdian
MIMr Isya
Mr Isya
Hafnidar A. RaniHafnidar A. Rani
Hafnidar A. Rani
The quality performance of road improvement and road development projects in Aceh Province has always been highlighted by various elements of society. This is due to the occurrence of the damage that the age of the plan has not timed. It is also often found quality mismatch so that road construction must be dismantled and reworked. This study aims to analyze the relationship and influence between the factors that contribute to the quality performance of road construction projects, and to identify the dominant factors affecting the quality performance of road construction projects in Aceh Province. This study used qualitative methods quantized through questionnaires. The number of research samples obtained by 75 companies. The sampling technique used is purposive sampling with the consideration of the contractor company that has completed the road construction project in Aceh Province from 2010-2015. Independent variables consist of human resource, material, equipment, evaluation, managerial, finance, field management, project owner, design, and environment, while the dependent variable is the quality performance of road construction project. Statistical analysis used is reliability test, descriptive analysis, simple correlation and multiple linear regression using Statistical Product and Service Solution (SPSS) version 22 software. The results show that human resource, material and equipment factors have very low relation, evaluation factor and managerial have low relation, finance factor have good relation, environment factor have high relation, while management and design factor have very high relation to quality performance at road construction project in Aceh Province. Contributing factors that affect the quality performance of road construction projects in Aceh Province are the factors of management, and design. The dominant factor affecting quality performance in road construction project in Aceh Province is management factor. This indicates that if the management factor is improved by the contractor then the quality performance of the road construction project will increase.

15 January 2018 in Jurnal Teknik Sipil
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IIIsnanda Isnanda
Isnanda Isnanda
SSSofyan M. Saleh
Sofyan M. Saleh
MIMr Isya
Mr Isya
Asphalt concrete strength is influenced by the material properties of the mixture. Asphalt mixture can be modified by adding several kinds of additives, ranging from chemical additives, natural materials, and the rest of the waste. One of the waste materials that were encountered and also difficult to disentangle by nature is plastic waste. One way to use it with the use as an additive in asphalt mixture. This mixture is also called polymer modified asphalt. In this study, the polymer material of the type used plastic Polystyrene (PS) and the use of coconut charcoal powder as filler in a mixture of AC-WC. Stone dust, cement, and fly ash hard to come by and relatively expensive. Coconut charcoal powder has the elements in the asphalt that is non-Polar Carbon by 91% is expected to be one alternative. This study aims to determine the effect of substitution of plastic using the dry process and the use of a filler combination of coconut charcoal powder and portland cement mixture on the characteristics Marshall of the AC-WC. Early stages of this research is to find the optimum asphalt content (OAC). After OAC obtained and then do the test object without substitution manufacture plastics and plastic waste substitution percentage variation PS 7%, 9%, 11% to the weight of the asphalt is substituted into the aggregate. The results showed substitution PS plastic on asphalt mix, the value of stability increased compared with no substitution of plastic. Value of stability without the plastic substitution of 1270.24 kg while the value of stability effective of PS substitution percentage of 11% with asphlat content of 4.70% which amounted to 1497.85 kg. the value of durability of a AC-WC mixture with and without substitution PS plastic by dry process not meeting the requirements of 90%.Abstrak: Kekuatan beton aspal dipengaruhi oleh sifat-sifat dari material campuran. Campuran aspal dapat dimodifikasi dengan menambah beberapa macam zat tambahan, mulai dari aditif bahan kimia, bahan alam, dan sisa limbah. Salah satu bahan limbah yang banyak ditemui dan juga sulit untuk diurai oleh alam adalah limbah plastik. Salah satu cara untuk memanfaatkannya dengan menggunakan sebagai bahan tambahan pada campuran beraspal. Campuran ini disebut juga dengan aspal modifikasi polimer. Pada penelitian ini bahan polimer yang digunakan dari jenis plastik Polystyrene (PS) serta penggunaan abu arang tempurung kelapa sebagai filler pada campuran AC-WC. Abu batu, semen dan fly ash susah didapatkan dan harganya relatif mahal. Abu arang tempurung kelapa memiliki unsur-unsur pada aspal yaitu Carbon non Polar sebesar 91% diharapkan dapat menjadi salah satu alternatifnya. Penelitian ini bertujuan untuk mengetahui pengaruh substitusi plastik dengan cara kering serta penggunaan filler kombinasi abu arang tempurung kelapa dan semen portland terhadap karakteristik Marshall campuran AC-WC. Tahapan awal penelitian ini adalah mencari kadar aspal optimum (KAO). Setelah KAO didapat kemudian dilakukan pembuatan benda uji tanpa substitusi plastik dan dengan substitusi variasi persentase limbah plastik PS 7%, 9%, 11% terhadap berat aspal yang disubstitusikan ke dalam agregat. Hasil penelitian menunjukkan substitusi plastik PS pada campuran aspal, nilai stabilitas campuran meningkat dibandingkan dengan tanpa substitusi plastik. Nilai stabilitas tanpa substitusi plastik sebesar 1270,24 kg sedangkan nilai stabilitas dari persentase substitusi terbaik jenis PS 11% pada kadar aspal 4,70% yaitu sebesar 1497,85 kg. Untuk nilai durabilitas campuran AC-WC dengan dan tanpa substitusi plastik PS tidak memenuhi persyaratan yaitu 90%.