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Gusty, Sri
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Analysis of the Effect of the Use of Sudetan Pipe Tunnels on the Water Level of the Ciliwung River and Cipinang River, East Jakarta Nurdyansyah, Haris; Desy, Natsar; Gusty, Sri
ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i2.17845

Abstract

Ciliwung River is one of the 13 major rivers in Jakarta that causes flooding, especially in the East Jakarta area. In an effort to reduce flooding along the Ciliwung River in the DKI Jakarta area, efforts were made to divert part of the Ciliwung River flow during floods to the East Flood Canal channel through the construction of a double pipe tunnel commonly called a sudetan in the Bidara Cina Village area, where the tunnel also passes through the Cipinang River as a diversion of discharge from the Cilwung River. The purpose of this study is to determine the effect of the sudetan pipe tunnel on the water level of Ciliwung River and Cipinang River. In this study, we will model the water level of Ciliwung River and Cipinang River to see the diversion of discharge into the sudetan pipe tunnel to reduce the overflow of water around Ciliwung River and Cipinang River. The method of this research is done by quantitative descriptive method to the value of water level in Ciliwung River and Cipinang River before the sudetan tunnel and after the sudetan tunnel and looking for comparison by using rating curve. The results of this study are based on the modeling analysis of the maximum flood discharge that can be accommodated by the ciliwung river before the existence of the sewer pipe tunnel in Q1 of 323 m3 / s there is an increase after the sewer pipe tunnel which is 539 m3 / s. It can be seen that the use of a sewer pipe tunnel can reduce the flood water level by 4 meters. It can be seen that the use of tunnel pipes can reduce the elevation of flood water up to 4 meters. Obtained for the ciliwung discharge of the return period Q1=323 m3/det Q2=377.66 m3/det Q5=433 m3/det Q10=462.45 Q25=493.52 m3/det Q50=518.83 m3/det Q100=539.62 m3/det.
SERVICE FACILITY ANALYSIS AND WORK ENVIRONMENT TO PASSENGER SATISFACTION LEVEL AT SULTAN HASANUDDIN INTERNATIONAL AIRPORT MAKASSAR Pakki, Ibrahim; Nur, Nur Khaerat; Gusty, Sri
ASTONJADRO Vol. 10 No. 2 (2021): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v10i2.5541

Abstract

Sultan Hasanuddin International Airport as one of the supporting sub-sectors of air transportation should be able to prepare and take strategic steps to proactively provide services and support customer needs for both airlines and passengers. This type of research is descriptive qualitative. The method of collecting data and information is Participatory Rapid Appraisal (PRA). Data analysis with statistical methods. The results showed that the physical facilities, the level of reliability of the officers, the responsiveness of the officers, the security guarantees, the attitude of the officers' empathy, the work environment at Sultan Hasanuddin Airport, showed a fairly small number of significance and had no effect on the level of passenger satisfaction. This can be interpreted that passenger satisfaction is quite good, but in this case to achieve a better value of passenger satisfaction, it is necessary to follow up so that the six variables get better attention so that the coefficient number is close to zero. It is recommended to improve both aspects of physical facilities and performance. The role of officers in serving passengers at Sultan Hasanuddin Airport Makassar.
Characterization of Oil and Diesel Waste Modifiers in Lasbutag Asphalt Cold Mix (Aggregated Buton Asphalt Layer) Artawan, I Putu; Chaerul, Muhammad; Gusty, Sri
ASTONJADRO Vol. 12 No. 3 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i3.13868

Abstract

One of the uses of Buton Asphalt is LASBUTAG which is a road surface with a mixture of Asbuton, modifier and aggregate. Currently, heavy oil as a modifier is scarce in the market, so it is necessary to consider other alternatives as a modifier, one of which can be used, namely waste oil motor vehicle or other machinery. The aim of this study is to analyze the ideal modifier variation in Lasbutag blends using Lombah oil and diesel fuel as modifiers. This research is a quantitative research using experimental methods conducted in the laboratory. The use of the modifier with waste oil and diesel fuel for Lasbutag cold mix pavements can meet the Marshall characteristics required in the special Lasbutag specifications. The stability required in the Lasbutag special specifications is met by using a modifier content of 4.2% to 6.8%, VIM can be achieved at different modifier levels between 4.8% and 7.2%, Cavity Parameters Between Mineral Aggregates (VMA) can be achieved using modifiers from 4% to 7.0% and Melt Value (Flux) can be achieved using modifiers from 4% to 6 .2%. The cold-mixed Lasbutag characteristics required in the Lasbutag special specifications can be met using a modifier between 4.8% and 6.2%, so the most ideal modifier is achieved at 5.5%.
Effect of fine modulus of coarse aggregate on the mechanical properties of concrete submerged in sea water Sulkarnain, Sulkarnain; Erniati, Erniati; Gusty, Sri; Ritnawaty, Ritnawaty; Ashraf, Ashraf; Huda, Miftakhul; Putri, Herwina Rahayu
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.14907

Abstract

The durability of concrete can be determined from mixing coarse aggregate, fine aggregate, cement, water, with or without additives. The properties of concrete can be influenced by several things, such as the ratio of the mix, how to mix, how to transport, how to print, and how to compact. To analyze the compressive strength, flexural strength and split tensile strength of concrete submerged in sea water with variations in fineness modulus. The compressive strength results were 35.67Mpa, 31.63Mpa, 29.30Mpa respectively while the compressive strength of concrete with seawater immersion was 36.94Mpa, 36.52Mpa and 30.15Mpa. The split tensile strength results were 2.71Mpa, 2.65Mpa and 1.91MPa respectively, while the split tensile strength of concrete immersing in seawater with the same variations were 3.29MPa, 2.76MPa and 2.12MPa, respectively. The results of flexural strength were 4.22Mpa, 4.21Mpa, and 4.14MPa respectively, while the flexural strength of concrete with seawater immersion with the same variations were 4.27MPa, 4.22MPa, and 4.18MPa, respectively. The effect of fine grain modulus on compressive strength, split tensile strength and resulting flexural strength is very significant, the higher the fineness modulus of the coarse aggregate, the smaller the resulting value.
Analysis of Optimum Asphalt Content of Lasbutag Mixture (Buton Aggregate Asphalt Coating) Modified by Waste Oil and Diesel as Modifier Wintari, Ni Kadek; Desi, Natsar; Gusty, Sri
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.15168

Abstract

Asbuton, a natural asphalt source on Buton Island in Southeast Sulawesi, is one of Indonesia's potential sources of natural wealth. As a road pavement material, LASBUTAG still has many weaknesses. This is especially true for cold LASBUTAG mixtures, which are only suitable for highways with light traffic. To mix Asbuton in cold conditions, a modifier is needed, the data of which is rare on the market, so other alternatives need to be considered as a modifier. In this research, we will try to use a mixture of waste oil and diesel as a modifier. The use of waste oil in this research is by looking at the development of the volume of waste oil. which continues to increase along with the increase in the number of motorized vehicles and motorized machines. The spread of oil waste is very widespread from big cities to rural areas throughout Indonesia. Waste from lubricating oil is included in B3 waste which needs special treatment in its processing. The aim of this research is to analyze the optimum asphalt content of cold Lasbutag mixtures with modifier materials from waste oil and diesel. From the results of this research, the Optimum Asphalt Content (KAO) in the Lasbutag Wearing Course (WC) mixture was 6.30% of the total mixture weight. Based on regression analysis, asphalt content can produce stability of 704.464 kg, flow of 3.078 mm, Vim of 4.467%, VMA of 17.077% and IKS of 78.763%. These values have met the requirements set out in the 2006 Special Lasbutag specifications.
Analysis of the Level of Landslide Susceptibility in the Sakuli Latambaga Area, Southeast Sulawesi Rasmita, Riza; Chaerul, Muhammad; Marzuki, Ismail; Gusty, Sri; Indrayani, Poppy; Sinardi, Sinardi
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.15173

Abstract

The vulnerability of landslides that occur in the Sakuli area, Kolaka Regency is related to topographic conditions which are dominated by mountains and hills, for this reason, research is needed as an effort to determine the level of vulnerability and determine disaster mitigation efforts against the danger of landslides. This type of research is quantitative descriptive by looking at the influence of each variable to analyze landslide-prone areas. The method used in this research is experimental analysis with direct observation in the field. From the research results, the vulnerability level value for the slope parameter was 0.83; with soil texture 0.408; for faults 0.86; value for regolith 0.363; with geological conditions 0.628; with a rainfall value of 0.3 and land use of 0.6, the accumulated value is that the research area is at a very vulnerable level with a value of 3.989. Therefore, this area really needs structural and non-structural mitigation to be able to protect and reduce the potential for landslides.
Peningkatan Literasi Digital Guru melalui Pemanfaatan Teknologi Edukasi Gusty, Sri; Syafar, A.Muhammad; Londongsalu, Jefryanto; Batara, Chris; Waris, Milawaty; Asmeati, Asmeati
Jurnal Pengabdian Masyarakat: Pemberdayaan, Inovasi dan Perubahan Vol 5, No 5 (2025): JPM: Pemberdayaan, Inovasi dan Perubahan
Publisher : Penerbit Widina, Widina Media Utama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59818/jpm.v5i5.1931

Abstract

This activity aimed to enhance the digital literacy of junior high school teachers by introducing practical skills in educational technology and the use of artificial intelligence (AI)-based tools in the classroom. The community service program was conducted face-to-face in the form of a hands-on workshop using the lesson study approach (Plan-Do-See). The partners in this activity were the Tamalate Sub-district Government and several junior high schools in Makassar. It was held on July 16, 2025, at the Tamalate Sub-district Office Hall and attended by approximately 25 teachers representing various schools. Participants used their own devices for direct practice. Evaluation results indicated an improvement in teachers’ abilities after the training. Before the program, only 28% of participants were able to create Google Forms, which increased to 76% after the training. Skills in managing Google Classroom rose from 16% to 72%, using Google Sheets from 12% to 68%, and collaborating via Google Docs from 20% to 70%. The training outcomes reflected high enthusiasm, with participants demonstrating competence in operating Google Forms, Google Classroom, and Google Spreadsheets effectively. Many expressed strong interest in applying AI tools for content development and enhancing classroom interaction. Overall feedback was positive, although some challenges were noted, including limited time to explore AI in depth, internet access issues, and varying levels of digital proficiency among participants. The program successfully achieved its objective of improving teachers’ digital literacy, as evidenced by the increased skills in Google Forms, Classroom, Sheets, and Docs. Moreover, participants showed strong enthusiasm in utilizing AI to support teaching, making the program effective in equipping teachers with practical competencies while fostering readiness to face the challenges of 21st-century education.ABSTRAKKegiatan ini bertujuan untuk meningkatkan literasi digital guru SMP dengan memperkenalkan keterampilan praktis dalam teknologi pendidikan dan penggunaan alat berbasis kecerdasan buatan (AI) di kelas. Kegiatan pengabdian kepada masyarakat ini dilaksanakan secara tatap muka (luring) dalam bentuk workshop berbasis praktik langsung dengan pendekatan lesson study (Plan-Do-See). Mitra kegiatan adalah Pemerintah Kecamatan Tamalate dan beberapa sekolah menengah pertama di Kota Makassar pada tanggal 16 Juli 2025 di aula kantor Kecamatan Tamalate, Makassar, yang diikuti oleh sekitar 25 guru perwakilan sekolah. Para peserta menggunakan perangkat pribadi untuk praktik langsung. Hasil evaluasi menunjukkan adanya peningkatan kemampuan guru setelah pelatihan. Sebelum kegiatan, hanya 28% peserta mampu membuat Google Form, meningkat menjadi 76% setelah pelatihan. Kemampuan mengelola Google Classroom naik dari 16% menjadi 72%, penggunaan Google Sheets dari 12% menjadi 68%, serta kolaborasi melalui Google Docs dari 20% menjadi 70%. Hasil pelatihan menunjukkan antusiasme tinggi, dengan kemampuan peserta dalam mengoperasikan Google Forms, Google Classroom, dan Google Spreadsheet secara efektif. Banyak peserta menyatakan minat besar untuk menerapkan alat AI dalam pembuatan konten dan peningkatan interaksi pembelajaran. Umpan balik umumnya positif, meskipun terdapat kendala seperti keterbatasan waktu dalam mengeksplorasi AI secara mendalam, permasalahan akses internet, serta perbedaan tingkat kemampuan digital peserta. Pelatihan ini berhasil meningkatkan literasi digital guru sesuai tujuan kegiatan, ditunjukkan oleh peningkatan keterampilan pada Google Forms, Classroom, Sheets, dan Docs. Peserta juga antusias memanfaatkan AI untuk mendukung pembelajaran, sehingga program ini efektif membekali guru dengan kemampuan praktis sekaligus menumbuhkan kesiapan menghadapi tantangan pendidikan abad ke-21.
Marshall Test Comparison of Asphalt Mix PG 70 and Asphalt Pen 60/70 Based on Bina Marga General Specification Putri, Mutiara Mentari; Gusty, Sri; Indrayani, Poppy
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17847

Abstract

Marshall Test Mix Asphalt PG 70 and Asphalt Pen 60/70. Marshall aims to determine the characteristic of the dough in the test object. In this case to know the values of durability (stability), melting (flow), & marshall Qouintient. The Marshall tool is a pressure sensor which is equipped with a proving ring with a capacity of 22.5 KN or 5000 IBS. The proving ring is equipped with a measuring watch which is useful for measuring the stability of the dough. Apart from that, there is still a flow meter to measure plastic melting, because the basic principle of the Marshall method is inspection of stability & melting (flow), and analysis of density & pores based on the dough that is formed. The dough design of the Marshall method was discovered by Bruce Marshall, & has been standardized by ASTM or AASHTO through several modifications, namely ASTM D 1559-76, or 27 AASHTO T T-245-90. The standard Marshall Test object is a cylinder with a diameter of 4 inches (10,16 cm) and a heigt of 2,5 inches (6,35 cm).
Analysis of the Utilization of Hair Fibers as an Eco-Friendly Concrete Construction Material Iqbal, M.; Bachtiar, Erniati; Gusty, Sri; Indrayani, Poppy; Marzuki, Ismail; Chaerul, Muhammad
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.17921

Abstract

The handling of human hair waste is still not optimal, as it is often discarded or burned, leading to environmental pollution. This research aims to utilize human hair waste as a mixture in normal concrete, resulting in a fiber-reinforced concrete product with marketable value, providing a more beneficial use compared to simply being disposed of or burned. The purpose of this study is to analyze the mechanical properties of concrete using human hair fibers. The mechanical properties to be analyzed include compressive strength, tensile splitting strength, and flexural strength. This research is based on laboratory experiments. The variations in the amount of fiber used in the study are 0.25%, 0.5%, 1%, and 1.5% of the cement weight in the concrete mix. Based on the results of mechanical property testing, it can be concluded that the optimal addition of 1% human hair fibers yielded a compressive strength of 22.86 MPa, tensile splitting strength of 2.69 MPa, and flexural strength of 4.13 MPa.
Determination of Flow Direction and Catchment Area Model Using Quantum GIS Analysis and Remote Sensing Imagery at Nickel Mining Locations Syarifudin, Erick; Chaerul, Muhammad; Gusty, Sri
ASTONJADRO Vol. 14 No. 3 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i3.18805

Abstract

The research location is located at IUP PT. IFISHDECO, Tbk (122.168° - 122.204° East Longitude (BT) and 4.371° - 4.404° South Latitude (LS), Tinanggea, South Konawe Regency, Southeast Sulawesi Province.. The study aims to determine the surface flow direction and catchment area model at nickel mining sites. The data is in the form of topographic data measured with a total station, by conducting spatial analysis with Quantum GIS (QGIS) and remote sensing with the Strahler method in determining the river network. The results of research conducted at the research location obtained 3 catchment areas, namely Catchment 1 covering an area of 19,021 Ha, catchment 2 covering an area of 32,691 Ha and Catchment 3 covering an area of 59.77 Ha which can be used in further analysis in the mining drainage system.
Co-Authors Abu, Arman Amir Mahmud Anugrah, Anugrah Artawan, I Putu Arwansyah Arwansyah Ashraf, Ashraf Asmeati Asmeati, Asmeati Batara, Chris Desi, Natsar Desy, Natsar Erniati Bachtiar Erniati Erniati Fatmeriany, Fatmeriany Firdaus Fidaus Firdaus Firdaus Harun, A. Muh. Yusuf Hasibuan, Parlindungan Ismail Marzuki Londongsalu, Jefryanto M. Iqbal Miftakhul Huda Muh. Chaerul, Muh. Muhammad Chaerul Musma, Saddam Nur Khaerat Nur, Nur Khaerat Nurdyansyah, Haris Pakki, Ibrahim POPPY INDRAYANI, POPPY Puspitarini, Made Dianing Putri, Herwina Rahayu Putri, Mutiara Mentari Rachim, Yunus Rachman, David Sumantri Rasmita, Riza Ritnawaty, Ritnawaty Sinardi, Sinardi sulkarnain, sulkarnain Syafar, A.Muhammad Syarifudin, Erick Wahyuningsih A., Sri Waris, Milawaty Wintari, Ni Kadek