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PRESUNIVE CIVIL ENGINEERING JOURNAL
Published by President University
ISSN : -     EISSN : 2987145X     DOI : -
Core Subject : Art, Engineering,
Arts Civil Engineering, Building, Construction & Architecture Control & Systems Engineering
PRESUNIVE CIVIL ENGINEERING JOURNAL [ISSN2987-145X (online)] is a scientific publication media for researchers, students as well as practitioners in the area of expertise of Structural Engineering, Construction Engineering & Management, Geotechnical Engineering, Water Resources Engineering, and Transportation Engineering. The Journal publishes in April and October under the supervision of the Civil Engineering Study Program, President University.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 34 Documents
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Traffic-Based Emission Assessment and Modal Shift Analysis Using a Harmonized Emission Factor Approach: A Case Study of the Kalimalang Corridor Ivan Imanuel; Prihartono Prihartono; Krisnanda Teguh Saputra
Presunive Civil Engineering Journal Vol. 4 No. 1 (2026)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/pcej.v4i1.6647

Abstract

Expansive Soil Shear Strength Improvement using Hydrated Lime : Direct Shear Analysis Yoel Kevinmorgan Sanggam; Eddy Triyanto Sudjatmiko; Lydia Darmiyanti
PRESUNIVE CIVIL ENGINEERING JOURNAL Vol. 4 No. 1 (2026)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/pcej.v4i1.6571

Abstract

Low shear force in expansive soil caused landslide, crack, and damage to construction. Successful treatment of expansive clay will increase its shear strength and improve its soil properties, making the soil less susceptible to deform thus making construction can be done without the need to replace the expansive soil. This study aims to quantify the effect of adding hydrated lime,  to the Karawang's expansive clay soil, especially its effect on increasing the shear strength of the soil. Laboratory test was consists of sieve analysis; Atterberg limit test, soil classification, and direct shear test was performed on untreated soil and soil treated with 5% of hydrated lime. The study results shows that addition of 5% hydrated lime to expansive clay can significantly improve its Atterberg limit and shear strength. The cohesion,  value of brown clay increases from 6.49 kPa to 61.43 kPa while for grey clay from 22.49 kPa to 55.49 kPa. The internal friction angle,  of treated clay are also improved significantly, from 15.07° to 28.30° for the brown clay and gray clay increase from 18.75° to 24.97°. This experiment proved that soil treated with lime is able to improve the shear stress of expansive soil especially expansive clay, making it a practical and viable alternative to soil replacement by backfilling expansive clay. 
Enhancing Porous Concrete Strength Through Superplasticiser Addition Seng Hansen; BMAS Anaconda Bangkara; Amalia Fathimah Azh Zhahra Mughni; Ario Bintang Koesalamwardi; Aldi Kurnia
PRESUNIVE CIVIL ENGINEERING JOURNAL Vol. 4 No. 1 (2026)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/pcej.v4i1.6601

Abstract

Porous concrete is widely used as a sustainable construction material since it allows water to pass through its structure, reducing surface runoff and supporting groundwater recharge. However, its application is often limited by its low compressive strength. This study investigates the effect of adding superplasticiser at varying dosage levels: 0.3%, 0.6%, and 0.8% of cement weight, on the mechanical properties of porous concrete. The research was conducted through laboratory experiments, with material testing, slump testing, and compressive strength testing at 7 and 28 days of curing. The results showed that the addition of superplasticiser significantly improved the compressive strength of porous concrete without affecting its porosity. The highest compressive strength was achieved at a 0.8% dosage, reaching 23.01 MPa at 28 days, which represents a 21.4% increase compared to normal porous concrete. The slump test confirmed that all concrete mixtures maintained near-zero slump values, ensuring that permeability was not compromised. These findings suggest that superplasticiser is an effective additive for improving the strength of porous concrete while preserving its essential drainage function. The research supports the broader application of porous concrete in sustainable infrastructure, especially in areas where both strength and water management are critical.
Analysis of Factors Causing Delay in the Project of Installing Magnet Separators on the Barge Loading Conveyor (BLC) System Syahrani Sri Nadia; Seng Hansen
PRESUNIVE CIVIL ENGINEERING JOURNAL Vol. 4 No. 1 (2026)
Publisher : President University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33021/pcej.v4i1.6599

Abstract

Project delays frequently occur in industrial equipment installation projects and significantly affect time performance and contractual commitments. This research aims to identify the dominant factors causing delays in the magnet separator installation project on the Barge Loading Conveyor (BLC) system and to propose practical solutions to improve schedule performance. The research focuses on administrative and material procurement factors as well as manpower factors, in line with the project characteristics. A quantitative–descriptive method was applied using baseline schedule analysis, planned and actual S-curve comparison, weekly and cumulative progress deviation calculations, and Schedule Performance Index (SPI) analysis. The results were supported by interviews with project stakeholders. The findings reveal that delays in administrative processes and procurement approval of the main equipment significantly impacted the project because these activities were on the critical path. In addition, limited manpower competency reduced field productivity, resulting in cumulative schedule deviations with SPI values below 1. The research concludes that procurement and manpower are the most dominant delay factors and emphasizes the importance of preventive planning strategies, including clear project day zero determination, integrated procurement scheduling, competency-based workforce planning, and detailed milestone control.

Page 4 of 4 | Total Record : 34

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