cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Sularno
Contact Email
soelarno@unidha.ac.id
Phone
+6281377008616
Journal Mail Official
dio@unidha.ac.id
Editorial Address
padang
Location
Unknown,
Unknown
INDONESIA
Jurnal Sains dan Teknologi
Published by CV ITTC Indonesia
ISSN : -     EISSN : 28077393     DOI : 10.47233
Core Subject : Science, Education, Engineering,
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering
Jurnal Sains Dan Teknologi (JSIT), merupakan Jurnal Penelitian dan Kajian Ilmiah yang diterbitkan CV.ITTC - INDONESIA dan dikelola langsung oleh Webinar.Gratis dan Even.Gratis yang terbit 3 (tiga) kali dalam setahun. Penyunting menerima kiriman naskah hasil kajian dan penelitian untuk bidang, Teknik Elektro, Teknik Sipil, Teknik Mesin, ,Teknologi Informasi.
Arjuna Subject : Umum - Umum
Articles 215 Documents
 17   18   19   20   21 
Evaluasi Kapasitas Saluran Drainase Eksisting terhadap Debit Banjir Rencana di Kecamatan Gunung Anyar, Surabaya Infaqi, Ta’faqur Wahyu Nur; Saves, Faradlillah
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3749

Abstract

The Gunung Anyar area of Surabaya has experienced rapid population growth and development, leading to a decline in green open spaces and water infiltration areas. This condition increases the risk of inundation and flooding due to the limited capacity of the existing drainage system. This study aims to evaluate the capacity of the existing drainage channels against the design flood discharge based on hydrological and hydraulic analyses. The hydrological analysis shows that the highest design flood discharge occurs in Sub-watershed 5 at 0.404 m³/s, while the lowest is found in Sub-watershed 6 at 0.096 m³/s. Meanwhile, the hydraulic analysis indicates that the highest channel capacity is in Channel 10 at 0.858 m³/s, and the lowest in Channel 6 at 0.097 m³/s. A comparison between hydrological and hydraulic discharges shows that several channels have smaller capacities than the design flood discharge (Q_hydraulic < Q_hydrologic), which may lead to inundation, particularly in Channels 1, 2, 5, 6, and 7. On the other hand, Channels 3, 4, 8, 9, and 10 are still capable of accommodating runoff effectively. The results of this evaluation can serve as a basis for planning drainage capacity improvements in the Gunung Anyar area to reduce future flood risks
Analisis Produktivitas Tenaga Kerja pada Proyek Pembangunan Airlangga Edupreneur Center (AEC) Tahap 1 Universitas Airlangga dengan Metode Time Study Utomo, Wahyu Agung Ponco Ndriyo Galih; Triana, Masca Indra
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3762

Abstract

Human resources play a crucial role in the construction sector, particularly in achieving optimal productivity. Variations in labor productivity in reinforced concrete structural work, such as reinforcement, formwork, and casting, pose a significant challenge to improving project efficiency. This study aims to analyze actual labor productivity in reinforced concrete structural work at the Airlangga Edupreneur Center (AEC) building project, specifically focusing on Guest House 1. The method used is Time Study, where observations are made directly on-site to measure the time required for each activity. The analysis technique employed is the calculation of Basic Time and Standard Time to determine labor productivity. The results of the study show that labor productivity varies across different types of work. For reinforcement work, productivity ranged from 71.14 to 2,175.84 kg/OH, with the highest value in slab work and the lowest in small column work. For formwork, productivity ranged from 3.43 to 134.43 m²/OH, while for casting, it ranged from 20.11 to 243.02 m³/OH. These variations are influenced by factors such as job characteristics, structural complexity, labor quantity, implementation methods, site conditions, and worker skill levels. This study provides a quantitative overview of labor productivity in construction projects, which can be used as a reference for resource planning, project duration estimation, and work method efficiency evaluation.
Perbandingan Desain Lug Groove dan Dovetail pada Bata interlock Terhadap Kuat Tekan Augdrie, May Haidar; Rochmah, Nurul
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3770

Abstract

The main problem in conventional wall construction lies in the limited compressive strength of clay bricks and the low efficiency of installation, both of which negatively affect structural performance and overall construction productivity. Conventional masonry also exhibits high variability in quality, making it less reliable for modern construction demands. Although interlocking concrete bricks have been introduced as an alternative solution to improve installation efficiency, the influence of interlocking geometric variations on compressive strength has not been examined comprehensively, particularly for Lug Groove and Dovetail configurations. This study aims to analyze the effect of these two interlocking geometries on the compressive strength of concrete bricks and to evaluate their conformity with the Indonesian standard SNI 03-0349-1989. The research was conducted using an experimental quantitative approach in a laboratory setting. Concrete brick samples were cast using wooden molds with two different interlocking geometries, namely Lug Groove and Dovetail. All specimens underwent a 7-day curing process prior to testing with a Compression Testing Machine (CTM). The maximum load sustained by each specimen was recorded and used to calculate compressive strength following the SNI formula, and the values were then converted into kg/cm² units. The results indicate that both interlock types fall into the solid concrete brick quality class II according to SNI. The average compressive strength of Lug Groove bricks was 43.99 kg/cm², while the Dovetail type reached 44.88 kg/cm². The difference between the two designs is relatively small, suggesting that geometric variation has only a limited effect on compressive strength. Nevertheless, both designs exhibit satisfactory mechanical performance and meet technical quality standards, making them suitable alternatives for efficient wall construction.
Perbandingan Bata Interlock Desain Keylock Brick dan Multi Gridlock terhadap Kuat Tekan Amanda, Rachel; Rochmah, Nurul
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3771

Abstract

The primary problem in using conventional red bricks as wall materials lies in their low construction efficiency, high dependence on mortar, and inconsistent structural quality, which makes them less suitable for modern construction demands that require speed, accuracy, and sustainability. These limitations create a strong need for innovative building materials capable of improving mechanical performance while enhancing construction efficiency. This study aims to analyze the influence of interlocking geometry variations in concrete bricks, specifically the Keylock Brick and Multi Gridlock types, on compressive strength, and to compare their performance with conventional red bricks to determine the most structurally optimal design. The research employs a quantitative experimental approach, where specimens are produced based on the predetermined geometric designs. Compressive strength tests are conducted using a Compression Testing Machine (CTM) to measure the maximum applied load. Data analysis is performed descriptively and comparatively based on the surface area and compressive strength values obtained from each sample. The results indicate that interlocking geometry significantly affects compressive strength performance. The Keylock Brick type achieves an average compressive strength of 100.03 kg/cm², classified as a solid concrete brick of quality level I according to SNI 03-0349-1989. Meanwhile, the Multi Gridlock type records an average compressive strength of 60.48 kg/cm², categorized as a hollow concrete brick of quality level II. Both values are higher than that of conventional red bricks, which average 31.68 kg/cm². These findings demonstrate that optimizing interlocking geometry can substantially enhance the structural performance of concrete bricks, offering a more efficient and sustainable alternative for modular construction applications
Evaluasi dan Perencanaan Ulang Kapasitas Saluran Drainase Perumahan Tambak Rejo Indah Waru Firmansyah, Fero Diky; Saves, Faradlillah; Safitri, Dika Ayu
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3778

Abstract

The drainage system in Tambak Rejo Indah Housing, Waru, Sidoarjo, is currently unable to accommodate rainfall runoff effectively, resulting in frequent ponding that disrupts residents’ activities. This study aims to analyze the capacity of the existing tertiary drains across several segments up to the secondary drain and redesign the channel dimensions to meet the required design discharge. Hydrological analysis was carried out using the Log Pearson Type III method to determine the design rainfall, and the Mononobe formula was applied to calculate rainfall intensity. The design discharge was established using a 10-year return period in accordance with the Ministry of Public Works Regulation No. 12/PRT/M/2014. The capacity of the existing drains was compared with the design discharge to identify channels that are insufficient to convey the required flow. New channel dimensions were then determined using a trial-and-error approach until sizes capable of conveying the design discharge were obtained. The analysis shows that several tertiary drains and their respective segments—Tertiary 1 (segments 2–3), Tertiary 2 (segments 4–5), Tertiary 4 (segments 9–10), Tertiary 5 (segments 12–13), Tertiary 6 (segments 16–17 to 26–27), and Tertiary Nilam Barat Main Road (segments 28–31)—are unable to convey the design discharge of 0.80–1.10 m³/s, with existing capacities of only 0.35–0.52 m³/s. Through the trial-and-error process, channel dimensions capable of accommodating the 0.80 × 0.80 m design discharge were obtained, including redesigned dimensions of 0.50 m × 0.50 m for Channel 1 (segment 2–3). This redesign is expected to improve flow efficiency and reduce the potential for ponding within the residential area.
Pengaruh Penggunaan Limbah Beton K-350 sebagai Pengganti Agregat Kasar terhadap Nilai Slump Hartono, Chisa Kurniawan; Rochmah, Nurul
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3781

Abstract

The development of construction technology in the era of globalization has progressed very rapidly, but on the other hand, it has also increased the amount of construction and demolition waste that has not been handled optimally. Waste from ready-mix concrete testing is one type of waste that has the potential to be reused as an alternative construction material. This study aims to determine the effect of using crushed stone from ready-mix concrete waste as a substitute for coarse aggregate on the workability properties of concrete as seen from the slump value. The concrete mix design method used in this study refers to the Department of Environment (DoE) method in SNI 03-2834-2000 with a planned concrete strength of 29 MPa. The test specimens were cylindrical concrete with 0% and 100% substitution of coarse aggregate using crushed concrete waste from the compressive strength test of K-350 concrete from PT Merak Jaya Beton. The slump test was carried out to assess the level of concrete mixture workability in each mix. The test results show that the slump value of concrete using coarse aggregate from concrete waste is still within the allowable range for structural works such as slabs, columns, and beams, which is 7.5–15 cm. The average slump value obtained was 13.86 cm, indicating that the concrete mixture still has good workability and can be easily applied in the field. Thus, the use of crushed concrete waste as a 100% substitute for coarse aggregate is still possible to be used in structural concrete mixtures in terms of workability.
Evaluasi Kinerja Lalu Lintas pada Simpang Bersinyal Marvel Menggunakan Metode MKJI 1997 dan Simulasi VISSIM Hariza, Sakhwal; Hartatik, Nurani
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3782

Abstract

The traffic performance evaluation at Marvel Intersection in Surabaya was conducted using two main approaches: the Indonesian Highway Capacity Manual (MKJI) 1997 and micro-simulation with PTV VISSIM software. This study aims to analyze the intersection’s performance based on parameters such as degree of saturation (DS), average delay, queue length, and level of service (LOS). Primary data were collected through traffic volume surveys and geometric observations, while secondary data were obtained from relevant agencies. The results indicate that the Marvel Intersection experiences significant congestion during peak hours, with LOS approaching category F. Model validation was performed by comparing VISSIM simulation results with MKJI 1997 calculations to ensure accuracy. The validation process showed acceptable error levels, confirming the reliability of both methods. Based on the findings, improvement proposals such as signal cycle time optimization and re-evaluation of traffic flow distribution are suggested to enhance intersection performance. This research also emphasizes the importance of integrating manual and simulation-based approaches in urban traffic performance analysis. The use of both methods provides a comprehensive.
Pengaruh Serbuk Batu Kapur di Daerah Semanding Tuban sebagai Variasi Bahan Substitusi Semen terhadap Nilai Slump Tirani, Aksaradia Sang; Rochmah, Nurul
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3785

Abstract

The massive use of concrete in the construction industry presents significant environmental challenges, particularly due to the high consumption of cement. Cement is a material that contributes substantially to global carbon dioxide (CO₂) emissions. According to data from the Chatham House Research Institute, global cement production in 2016 generated approximately 2.2 billion tons of CO₂, equivalent to 8% of total global carbon emissions. This condition indicates the need for efforts to increase efficiency in cement use through innovations in concrete mixtures, including the utilization of substitute materials such as limestone powder. This study aims to evaluate the slump values of concrete with various limestone powder substitution percentages using the Design of Experiment (DoE) method for mix design and the SNI 1972:2008 “Concrete Slump Test Method” as the testing standard. The analysis technique was carried out by measuring the height of fresh concrete before and after being placed into the Abram cone to obtain the slump value as an indicator of workability. The results show that the slump values for the 0%, 5%, 10%, 12.5%, 15%, and 35% variations were 18 cm, 16 cm, 15.75 cm, 11.5 cm, 12.5 cm, and 12 cm, respectively. The highest slump was obtained at the 0% variation, while the most optimal slump was found at the 12.5% variation with a value of 11.5 cm, as it lies within the ideal range—not too fluid, which risks segregation, and not too stiff, which complicates compaction. This study demonstrates that the addition of limestone powder at certain levels can significantly influence concrete workability.
Pengaruh Variasi Bentuk Geometris Bata Beton Interlock Tipe Segitiga dan Lego terhadap Kekuatan Tekan Radinda, Aura Azafilia; Sutriono, Bantot; Trimurtiningrum, Retno
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3808

Abstract

This The demand for efficient and environmentally friendly building materials has driven the development of interlocking concrete blocks with various geometric shapes. This study aims to analyze the effect of geometric shape variations of interlocking concrete blocks Triangle and Lego types on compressive strength, using the Cube block as a control sample. The tests were conducted on samples measuring 5×5×5 cm. The results indicate that block geometry significantly affects stress distribution and failure patterns. Based on the test results, the Cube block (control) achieved the highest compressive strength of 66.69 Kg/cm², followed by the Lego block with 51.68 Kg/cm² Grade II, and the Triangle block with 47.26 Kg/cm² Grade III according to SNI 03-0349-1989 for concrete masonry units. These differences in compressive strength demonstrate that the more complex and taller the block geometry, the greater the stress concentration that reduces strength performance. The Cube block showed the most uniform load distribution, the Lego block exhibited moderate strength due to its interlocking system that enhances stability, while the Triangle block had the lowest strength due to its narrower load-bearing area. Therefore, a compact and well-proportioned geometric design, such as the Lego type interlock, proves to be more structurally efficient than the taller triangular form.
Pengaruh Serbuk Batu Kapur Sampang Madura sebagai Subtitusi Semen terhadap Slump Beton Santoso, Dwi Prima; Sutriono, Bantot; Rochmah, Nurul
Jurnal Sains dan Teknologi (JSIT) Vol. 5 No. 3 (2025): September-Desember
Publisher : CV. Information Technology Training Center - Indonesia (ITTC)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jsit.v5i3.3809

Abstract

Madura, particularly the Sampang region, possesses significant reserves of carbonate minerals, notably limestone. The utilization of this local material as a construction element holds substantial potential, but requires investigation into how the substitution and addition of pulverized limestone affect the critical properties of concrete. This study focuses on the problem of how a combined 50% substitution of coarse aggregate with Sampang limestone and the incremental addition of pulverized limestone as an additive influences the workability of fresh concrete. The primary objective of this research is to evaluate and determine the effect of incremental percentages of Sampang pulverized limestone additive (0%, 5%, 10%, 15%, and 20%) on concrete workability, quantified by the slump test, for a concrete mix that already utilizes a 50% coarse aggregate substitution with limestone, aiming to identify the optimal composition. The methodology employed in this study is laboratory-based experimentation. The analytical technique applied is descriptive statistical analysis to compare the average slump values resulting from the variations in additive composition. The baseline concrete mix comprised a 50% substitution of coarse aggregate with limestone. Subsequently, the pulverized limestone powder was added at the predetermined additive percentages. The results indicate that the baseline mix (50% limestone substitution with 0% additive) yielded an average slump of 16.7 cm. The highest average slump value of 17.3 cm was recorded when the 50% substitution mix was further enhanced by a 5% additive composition. Conversely, increasing the additive proportion beyond 5% consistently reduced the slump, achieving the lowest workability of 15.0 cm at the 20% additive level. These findings suggest that the inclusion of 50

Page 19 of 22 | Total Record : 215

 17   18   19   20   21 

Filter by Year

2021 2026


Reset
Filter By Issues
All Issue Vol. 6 No. 1 (2026): Januari - April Vol. 5 No. 3 (2025): September-Desember Vol. 5 No. 2 (2025): Mei - Agustus Vol. 5 No. 1 (2025): Januari-april Vol. 4 No. 3 (2024): September - Desember Vol. 4 No. 2 (2024): Mei - Agustus Vol. 4 No. 1 (2024): Januari - April Vol. 3 No. 3 (2023): September - Desember Vol. 3 No. 2 (2023): Mei - Agustus Vol. 3 No. 1 (2023): January-April Vol. 2 No. 3 (2022): September - Desember Vol. 2 No. 2 (2022): Mei - Agustus Vol. 2 No. 1 (2022): January-April Vol. 1 No. 3 (2021): Jurnal Sains dan Teknologi Vol. 1 No. 2 (2021): Jurnal Sains dan Teknologi (JSIT) Vol. 1 No. 1 (2021): Jurnal Sains dan Teknologi (JSIT) More Issue