COMPARATIVE ANALYSIS OF RIGID PAVEMENT DESIGN USING THE MDPJ 2024 METHOD AND PCA ON THE VETERAN–KAPTEN DARMO SUGONDO ROAD SECTION
Keywords:
Erosion, Fatigue, MDPJ 2024, PCA, Rigid PavementAbstract
Infrastructure development in the industrial area of Gresik Regency, especially the Veteran – Kapten Darmo Sugondo road section, requires a reliable road structure due to the high intensity of heavy commercial vehicles that trigger pavement degradation. This study aims to compare the efficiency of rigid pavement design using the 2024 Road Pavement Design Manual (MDPJ) and the Portland Cement Association (PCA) method in terms of mechanistic and value engineering aspects. A comparative quantitative approach was applied using actual load spectrum data and a design California Bearing Ratio (CBR) value of 25.12%. The analysis was carried out through iterations of concrete slab thickness on a 150 mm Lean Mix Concrete (LMC) foundation layer to evaluate the percentage of fatigue damage and erosion. The results showed that the 2024 MDPJ method determined an optimum slab thickness of 300 mm, while the PCA method produced a thinner design of 250 mm with 100 mm of Binder Concrete that still met safety criteria. It was concluded that the PCA method was superior and more efficient for initial investment, but the 2024 MDPJ provided a more robust safety factor against the risk of overloading in the future.
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