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This is a Quantitative Study study.

September 19, 2025

Comparative Analysis of Cost, Quality, and Time on the Productivity of Deep Cement Mixing Work Between Subcontractors in the Probolinggo-Banyuwangi Toll Road Construction Project Section 2

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The analysis indicates that PT Geotekindo completed deep cement mixing the fastest at 31 days, showcasing significant differences in productivity across subcontractors.
Comparative costs reveal that PT Geotekindo offered the lowest price at IDR 681,296 per cubic meter, while PT Keller Ground Indonesia had the highest costs at IDR 788,437 per cubic meter.
Quality evaluations demonstrated that all subcontractors met the quality standard of at least 1 MPa, confirming that productivity doesn't compromise quality in their work.
Findings suggest that higher productivity correlates with reduced turnaround times and lower costs, highlighting a competitive advantage for subcontractors like PT Geotekindo.

Resumen

The Trans Java toll road project at the eastern end connects Probolinggo-Banyuwangi (Probowangi), along 171,516 km. Phase 1 of the Gending-Besuki section is being carried out. This study analyzed the difference in time, cost, and quality of deep cement mixing (DCM) work by 4 subcontractors in section 2 (STA 09+000 - STA 20+200) who carried out soil improvements before landfilling. Quantitative methods are used to compare time, cost, and quality. The results show the completion time of DCM: PT Keller Ground Indonesia (85 days), PT Leekang Jaya Konstruksi (116 days), and PT Geotekindo (31 days). Highest daily productivity: PT Geotekindo (428.63 m³/day), followed by PT Keller Ground Indonesia (280.32 m³/day) and PT Leekang Jaya Konstruksi (277.53 m³/day). The lowest DCM price is PT Geotekindo (IDR 681,296/m³), PT Leekang Jaya Konstruksi (IDR 706,980/m³), and the highest PT Keller Ground Indonesia (IDR 788,437/m³). Quality (UCS) of all subcontractors ? 1 MPa. Efficiency shows that subcontractors with high productivity have faster turnaround times, lower costs, and quality to standards.

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Cite This Study

Sholihin et al. (Fri,) studied this question.

synapsesocial.com/papers/68d466be31b076d99fa65ad7 https://doi.org/https://doi.org/10.58344/jii.v4i5.6484

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