Ni Putu Desi Sukamdani Landuh, I Wayan Gde Erick Triswandana, I Gusti Agung Putu Eryani

ANALISIS PERBANDINGAN BIAYA DAN WAKTU PELAKSANAAN BETON HALF SLAB DENGAN BETON KONVENSIONAL PADA PROYEK REVITALISASI MUSEUM MANDALA MATHIKA SUBAK

Introduction

Analisis perbandingan biaya dan waktu pelaksanaan beton half slab dengan beton konvensional pada proyek revitalisasi museum mandala mathika subak. Analisis perbandingan biaya & waktu beton half slab vs. konvensional di proyek Revitalisasi Museum Mandala Mathika Subak. Half slab hemat 33% biaya & percepat 43% waktu.

Abstract

The construction implementation system in the Mandala Mathika Subak Museum Revitalization project uses the cast in situ or conventional method including floor slab work. The implementation of floor slab work with the cast in situ method requires a long processing time and a lot of labor and costs incurred. In the construction of the building, the selection of work methods is very influential on the implementation time and cost. The selection of the right method will make the development efficient. One of them is the use of precast concrete such as half slab. In this study will compare conventional methods and half slab methods from the aspects of implementation time and cost, which is more profitable. The results of the comparative analysis of execution time and costs from the calculation of cast-in-situ and half-slab plates in the Revitalization Project of the Mandala Mathika Subak Museum show that using the half-slab method saves 33% in costs compared to the cast-in-situ method, with a cost difference of Rp. 552,730,037, and can accelerate the execution time of 43% or 19 days.  

Review

This paper addresses a pertinent issue in construction management: optimizing the execution of floor slab work for improved time and cost efficiency. Focusing on the Mandala Mathika Subak Museum Revitalization project, the research undertakes a comparative analysis between the traditionally employed cast-in-situ concrete method and the increasingly popular precast half-slab system. The central objective is to identify which of these methods offers superior profitability and efficiency, thereby contributing to more effective project planning and execution in the building sector. The methodology hinges on a direct comparative analysis of the implementation time and associated costs for both conventional cast-in-situ and half-slab techniques. The abstract provides clear and compelling quantitative results: the half-slab method demonstrated a significant 33% reduction in overall costs, translating to a saving of Rp. 552,730,037. Furthermore, it remarkably accelerated the project's execution time by 43%, equating to a saving of 19 days. These findings strongly advocate for the economic and temporal advantages of adopting the precast half-slab system over traditional methods for similar construction projects. The practical implications of this study are substantial, offering valuable data for construction practitioners and decision-makers in considering alternative slab construction methods. The clear, quantifiable benefits in terms of cost and time savings make a robust case for the adoption of precast half-slabs, particularly in contexts where project deadlines and budget constraints are critical. While the study is specific to one revitalization project, its findings provide a strong impetus for broader exploration into the generalizability of these efficiencies across different project scales and types. Future research could further investigate factors such as initial investment in precast technology, logistical complexities, and potential environmental benefits to offer an even more comprehensive perspective on such construction method comparisons.

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