cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Eko Walujodjati
Contact Email
eko.walujodjati@itg.ac.id
Phone
+6282124588750
Journal Mail Official
konstruksi@itg.ac.id
Editorial Address
Jl. Mayor Syamsu No.1, Jayaraga, Kec. Tarogong Kidul, Kabupaten Garut, Jawa Barat 44151
Location
Kab. garut,
Jawa barat
INDONESIA
Jurnal Konstruksi
Published by Institut Teknologi Garut
ISSN : 14123614     EISSN : 23027320     DOI : https://doi.org/10.33364/konstruksi
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Kosntruksi yang dapat menampung dan mempublikasikan hasil karya penelitian, karya tulis dan pengabdian masyarakat baik mahasiswa dan dosen-dosen intern maupun dari pihak luar. Jurnal Konstruksi memberikan informasi yang diperoleh dari laboratorium dan workshop penelitian maupun dari lapangan/ studi kasus di dunia nyata dengan cakupan (Scope of Journals) bidang meliputi struktur transportasi/ infrastruktur, air, geoteknik, manajemen konstruksi, dan lingkungan. Melalui jurnal konstruksi diharapkan dapat menampung semua inspirasi bidang teknik sipil sehingga didapatkan pemecahan masalah yang dihadapi dan mampu melahirkan inovasi baru dibidangnya.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 417 Documents
 38   39   40   41   42 
Pengaruh Metode Pendinginan Pasca Bakar Terhadap Perubahan Kuat Tekan Bata Ringan I Gede Ngurah Swasti; Andi Marini Indriani; Gunaedy Utomo
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3346

Abstract

This study is motivated by the increasing use of lightweight bricks as a modern construction material due to their advantages, including low weight, good thermal insulation, and ease of installation. Foam agent-based lightweight bricks are made from a mixture of fine aggregate from Muara Samu sand, cement, water, and an air-foaming agent. The problem examined in this study is the degradation of material quality due to exposure to high temperatures during fire conditions, which may affect compressive strength. This study aims to determine the effect of burning duration and cooling methods on the compressive strength of lightweight bricks. The method used was a laboratory experiment employing cube specimens with a variation of 8 bar and 2 percent foam agent, which were burned for 20, 40, and 60 minutes. The specimens were then cooled using two methods: without water spraying and with water spraying, followed by compressive strength testing. The results indicate that the initial compressive strength was 1.89 MPa. After burning without water spraying, the compressive strength decreased to 1.53 MPa (20 minutes), 1.34 MPa (40 minutes), and 1.12 MPa (60 minutes). Meanwhile, with water spraying, the compressive strength decreased to 1.47 MPa (20 minutes), 1.28 MPa (40 minutes), and 1.04 MPa (60 minutes). The findings show that the longer the burning duration, the greater the reduction in compressive strength, and that the cooling method using water tends to accelerate the decrease in compressive strength.
Evaluasi Kapasitas dan Kinerja Lalu Lintas Simpang Berdasarkan Pedoman Kapasitas Jalan Indonesia 2023 Haerul Bahri; Anwar Efendy; Titik Wahyuningsih; Adryan Fitrayudha
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3362

Abstract

This study aims to analyze traffic performance at the unsignalized UMMAT intersection in Mataram City based on the 2023 Indonesian Road Capacity Guidelines (PKJI). Primary data was obtained through a field survey covering traffic volume, intersection geometric conditions, and road environment characteristics during peak hours, and was then analyzed using the intersection capacity (C), degree of saturation (DJ), and traffic delay (T) parameters. The results of the study indicate that the intersection capacity is 3,524 vehicles per hour with a peak-hour traffic flow of 2,920 vehicles per hour. A degree of saturation (DJ) value of 0.83 indicates that the intersection is approaching saturation, characterized by increased vehicle interactions and limited opportunities for vehicles from minor approaches to enter the intersection. An average delay of 9.97 seconds/vehicle indicates that the intersection’s performance is in a congested state but has not yet experienced significant traffic jams. This study has limitations regarding the use of traffic data, which only represents conditions during a specific observation period and does not yet consider seasonal variations and driver behavior factors in detail. Overall, the intersection is still functioning well, but traffic management efforts are needed to anticipate a decline in performance in the future.Evaluation of Intersection Traffic Capacity and Performance Based on the 2023 Indonesian Road Capacity Guidelines
Evaluasi Kapasitas Saluran Drainase terhadap Debit Rencana di Kawasan Graha Raya, Kabupaten Tangerang Debby Syafriyandi; Salsabila Septiansyah; Agum Abdadi; Muthia Raissa; Bernard Mayalfanda; Ilha Madonna; Ezra Andreas Saputra
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3364

Abstract

Rapid urban growth in the Graha Raya area, Tangerang, has created serious challenges for the drainage system. Drainage problems have become a crucial issue in rapidly developing urban areas such as Graha Raya, Tangerang Regency. Flooding and water ponding frequently occur due to the insufficient capacity of the existing drainage channels. This study aims to evaluate the adequacy of the existing drainage channel capacity against the design discharge as part of flood mitigation efforts. The research methodology includes the collection of hydrological and channel morphology data, calculation of runoff discharge using the Rational Method, and analysis of the hydraulic capacity of drainage channels by considering channel dimensions, slope, and roughness coefficients. The analysis results indicate that several major drainage channels in Graha Raya are unable to accommodate the design discharge under certain return periods. For the 25-year return period, with a rainfall value of 187 mm/day, the design discharge exceeds the channel capacity in several segments. Therefore, adjustments to the hydraulic dimensions are required to improve the performance of the drainage system and minimize the potential for flooding in the study area.
Pengaruh Komposisi Campuran Multi-Variabel terhadap Kuat Tekan Mortar Geopolimer Fly Ash-GGBFS Novacharisma Vindiantri Verucha; Bayu Rahmat Ramadhan; Rezky Susmono Karuru; Sri Nur Akifa; Misel Boro Allo
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3366

Abstract

Growing interest in sustainable construction materials has driven the utilization of industrial by-products, such as fly ash, as alternatives to Portland cement. However, Type F fly ash typically exhibits low calcium (CaO) content, resulting in slow geopolymerization and limited strength development under ambient curing conditions. This study investigates the combined influence of Ground Granulated Blast Furnace Slag (GGBFS) incorporation and multi-variable mix composition on the compressive strength development of fly ash-based geopolymer mortar.An experimental program based on a Taguchi L9 design was employed to systematically evaluate the effects of GGBFS content (0%, 10%, 20%, and 30%), activator-to-binder ratios (0.30, 0.35, and 0.40), and aggregate-to-binder ratios (2.25, 2.50, and 2.75). Compressive strength was measured at 7, 14, and 28 days under ambient curing conditions and compared with conventional Portland cement mortar. The results indicate that GGBFS plays a dominant role in enhancing strength development by promoting the formation of hybrid C–A–S–H and N–A–S–H gels, which densify the microstructure and accelerate reaction kinetics.The fly ash-only mixture exhibited very low strength (0.82 MPa at 28 days), while mixtures incorporating GGBFS showed significant improvement. The optimal composition (D40G30A2.5) achieved a compressive strength of 28.81 MPa at 28 days, exceeding the Portland cement control (16.75 MPa). Statistical analysis further confirms that GGBFS content is the most influential parameter governing strength development, followed by activator dosage, while aggregate proportion has a relatively minor effect. This study contributes a systematic multi-parameter optimization framework for ambient-cured fly ash–GGBFS geopolymer mortar, demonstrating that 20–30% GGBFS incorporation enables practical strength development without the need for elevated temperature curing, thereby enhancing its applicability for real-world construction.
Korelasi Type LRB Terhadap Penggunaan Di Struktur Elevated Guna Menghasilkan Efektifitas Hasil Penulangan Di Pier Muhammad Nasir; Pio Ranap Tua Naibaho
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3391

Abstract

In the design of elevated bridge structures, the selection of Lead Rubber Bearing (LRB) types plays an important role in controlling seismic response and improving the efficiency of reinforcement requirements in piers. This study aims to analyze the correlation between variations in LRB specifications and the effectiveness of reinforcement in elevated pier structures. The methods used include literature study, three-dimensional numerical modeling, and structural response analysis using SAP2000 software with response spectrum and time-history approaches. The analysis results show that variations in LRB parameters, particularly effective stiffness (Keff) ranging from 0.60 to 0.81 kN/mm and characteristic strength (Qd) ranging from 39 to 80 kN, have a significant influence on the distribution of internal forces within the structure. The use of LRB with lower Keff values was able to reduce internal forces in the piers by approximately ±15–30 percent and significantly decrease longitudinal reinforcement requirements compared to configurations with higher stiffness. In addition, the LRB deformation capacity of 110–140 mm proved effective in enhancing seismic energy dissipation and maintaining the structural capacity-to-demand ratio close to the optimum condition of < 1.0. The contribution of this study demonstrates that optimizing LRB parameters, particularly Keff, can be used as a design strategy to produce pier structures that are more efficient, safe, and economical. These findings provide a technical basis for selecting appropriate seismic isolators to improve the performance of elevated structures under earthquake loads.
Evaluasi Perkerasan Kaku Menggunakan Metode Pavement Condition Index pada Proyek Peningkatan Jalan Emka Albertta Sitepu; Subrata Aditama K.A. Uda; Okta Meilawaty
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3397

Abstract

Evaluation of rigid pavement conditions is very important to ensure the structural and functional performance of roads, particularly in national strategic road projects. Previous research by Rizaldi, Hermansyah, and Mawardin (2023) using the Pavement Condition Index (PCI) method on the Q-R4 section of MUTIP 1 Mandalika Road obtained a PCI score of 90.875, which was categorized as very good. The identified damages consisted of linear cracking, corner cracking, joint filler deterioration, pumping, and mortar and aggregate wear. However, the previous study focused on the general surface condition of the pavement, while the analysis of initial damage to the lean concrete layer remained limited. This study aims to assess the condition of rigid pavement in the Precinct Core and Sumbu Tripraja Road Improvement Project in East Kalimantan using the PCI method. Data were obtained through visual observations, project documentation, and measurements of damage on the lean concrete layer. The results indicate damage in the form of longitudinal and transverse cracks (linear cracks) with a total damaged area of 0.11855 m². The Density value was 0.172346 percent, the Deduct Value was 7.2436, and the Corrected Deduct Value was also 7.2436, resulting in a PCI value of 92.7564, which falls into the very good category. These findings indicate that the pavement condition is excellent and confirm that the PCI method is effective as a basis for evaluating pavement quality and implementing preventive maintenance strategies for rigid pavements.
Pengaruh Perbedaan Jenis Pasir terhadap Properties Material dan Kuat Tekan Beton Tendy Arizki; Tira Roesdiana
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3414

Abstract

Fine aggregate plays a significant role in concrete mixtures because it constitutes approximately 60–75 percent of the total volume, meaning that its characteristics directly influence concrete quality. In the Ciayumajakuning region, Cimalaka sand (Sumedang) is more commonly used even though its logistical distance is farther compared to Ciputat sand (Indramayu); however, no scientific study has directly compared the two materials. This study aims to examine the material properties characteristics and the effect of using these two types of sand on the compressive strength of concrete with a design strength of f'c 25 MPa, as well as to assess the feasibility of Ciputat sand as a substitute for Cimalaka sand. The method applied was experimental using 24 cylindrical specimens measuring 15 cm × 30 cm, tested at the ages of 7, 14, 21, and 28 days in accordance with SNI 03-2834-2000. The material property test results indicate that Ciputat sand belongs to Zone 3 with a mud content of 3.0 percent (meeting the SNI requirement of =< 5 percent), while Cimalaka sand belongs to Zone 1 with a mud content of 7.28 percent (exceeding the SNI limit and therefore requiring washing). At 28 days, the average compressive strength values of the concrete were recorded at 26.138 MPa for Ciputat sand and 25.666 MPa for Cimalaka sand, both exceeding the target design strength of f'c 25 MPa. The insignificant difference in values indicates that the performance of both sands is relatively equivalent, suggesting that Ciputat sand has the potential to be used as a more logistically efficient alternative without compromising structural quality.
Analisis Kinerja Simpang Tak Bersinyal Akibat Penerapan Sistem Jalan Satu Arah Menggunakan PKJI 2023 dan Simulasi PTV VISSIM Sofyan Dayudinata; Anwar Efendy; Adryan Fitrayudha; Isfanari
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3422

Abstract

The UMMAT Intersection along the Merdeka–Pagesangan corridor has experienced increasing traffic congestion due to high vehicle volumes and intense surrounding area activities. This study aims to evaluate the performance of the unsignalized intersection under existing conditions and to analyze the impact of implementing a traffic engineering strategy in the form of a one-way road system. The methods used in this study were the Indonesian Highway Capacity Guidelines (PKJI) 2023 and microscopic simulation using PTV VISSIM software. Data were collected through traffic volume surveys, road geometry measurements, and side friction observations. The analysis results indicate that the existing condition operates at a performance level close to saturation. The implementation of the one-way outflow-only scenario tended to reduce intersection performance, whereas the one-way inflow-only scenario demonstrated better performance improvement. Based on the PKJI 2023 analysis, the inflow-only one-way scenario resulted in lower degrees of saturation and delays compared to the existing condition. The PTV VISSIM simulation results also showed a similar pattern, where the inflow-only one-way scenario produced lower intersection delays compared to the outflow-only scenario, although there were differences in the absolute values between the two methods. Overall, the implementation of an inflow-only one-way system on the southern approach (C) proved to be more effective in improving intersection performance through the reduction of traffic conflicts and enhancement of traffic flow orderliness. However, this study has limitations because it focuses only on a single intersection location and does not consider the impact on the overall road network. Therefore, further studies with a broader scope are recommended.
Karakteristik Kuat Tarik Beton dengan Penambahan Serat Sabut Kelapa dan Silica Fume sebagai Substitusi Semen Debby Sinta Devi; Utari Sriwijaya Minaka; Fathoni Usman; Happy Bunga Nasyirahul Sajidah; Raihan Rasyid
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3439

Abstract

This study evaluates the effect of integrating coconut coir fiber at contents of 2 percent, 2.5 percent, and 3 percent, along with 5 percent silica fume, on the splitting tensile strength performance of concrete. The experimental results show that the 2 percent coconut coir fiber proportion provided the optimal performance, with a tensile strength value reaching 3.12 MPa, or an increase of 12.5 percent compared to the control concrete, which had a tensile strength of 2.5 MPa. Although fiber additions at higher contents of 2.5 percent and 3 percent still contributed to mechanical strength, a significant decline in concrete mixture workability was observed. The synergy between silica fume through its pore-filling effect and natural fibers proved effective in optimizing concrete density and ductility. This study concludes that the combination of these two materials can produce innovative concrete that is stronger and more environmentally friendly as a future construction material solution.
Preplaced Lightweight Aggregate Concrete (PLWAC) Dengan Bahan Agregat Kasar Batu Apung dan Fly Ash Sebagai Agregat Halus Adhika Raffi Athallarizq; Ngudiyono; Akmaluddin; Buan Anshari; Hariyadi; Ni Nyoman Kencanawati; Tri Sulistyowati
Jurnal Konstruksi Vol 24 No 1 (2026): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.24-1.3444

Abstract

Concrete is a composite material widely used because it has high compressive strength; however, it has a weakness in the form of high density. Lightweight concrete innovation such as Preplaced Lightweight Aggregate Concrete (PLWAC) offers a solution, using a method in which lightweight aggregate is first placed into the mold and then filled with grouting material, which is expected to reduce density. This study uses pumice stone as coarse aggregate and fly ash as fine aggregate. The purpose of this study is to analyze the effect of variations in the cement-to-fly ash ratio on the flowability and compressive strength of the grouting material, as well as to evaluate the mechanical properties (compressive strength, splitting tensile strength, and flexural strength) and physical properties (density and water absorption) of PLWAC. The grouting material used variations of cement-to-fly ash ratios of 1:0.5, 1:1, 1:1.5, and 1:2. The grouting method was carried out using manual pumping into molds that had been filled with pumice aggregate. The specimens consisted of 12 cubes measuring 50 mm × 50 mm × 50 mm for grouting material compressive strength testing, 28 cylinders measuring 150 mm × 150 mm for compressive strength, splitting tensile strength, and absorption tests, and 12 beams measuring 150 mm × 150 mm × 530 mm for PLWAC flexural strength testing. The test results at 56 days show that increasing the fly ash content caused a decrease in mechanical properties. The highest compressive strength of the grouting material was 28.64 MPa at a ratio of 1:0.5. Meanwhile, PLWAC achieved the highest compressive strength of 6.22 MPa, splitting tensile strength of 1.27 MPa, and flexural strength of 1.28 MPa. The lowest PLWAC density was obtained in the cement-to-fly ash composition of 1:2, at 1,388.3 kg/m³, with water absorption of 28.79 percent.

Page 41 of 42 | Total Record : 417

 38   39   40   41   42 

Filter by Year

2017 2026


Reset
Filter By Issues
All Issue Vol 24 No 1 (2026): Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi Vol 23 No 1 (2025): Jurnal Konstruksi Vol 22 No 2 (2024): Jurnal Konstruksi Vol 22 No 1 (2024): Jurnal Konstruksi Vol 21 No 2 (2023): Jurnal Konstruksi Vol 21 No 1 (2023): Jurnal Konstruksi Vol 20 No 2 (2022): Jurnal Konstruksi Vol 20 No 1 (2022): Jurnal Konstruksi Vol 19 No 2 (2021): Jurnal Konstruksi Vol 19 No 1 (2021): Jurnal Konstruksi Vol 18 No 2 (2020): Jurnal Konstruksi Vol 18 No 1 (2020): Jurnal Konstruksi Vol 17 No 2 (2019): Jurnal Konstruksi Vol 17 No 1 (2019): Jurnal Konstruksi Vol 16 No 2 (2019): Jurnal Konstruksi Vol 15 No 1 (2017): Jurnal Konstruksi More Issue