Gunawan, Rizal (2026) Analisis Perbandingan Mekanistik KENPAVE pada Desain Perkerasan Lentur, Kaku, dan Komposit Menggunakan Metode AASHTO 1993 di Jalan Lembar - Mataram, Nusa Tenggara Barat. Undergraduate thesis, UPN Veteran Jawa Timur.
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Abstract
The increase in heavy logistical traffic, particularly overloaded vehicles, on the Lembar–Mataram Road, West Nusa Tenggara, triggers premature degradation of road infrastructure. This demands a pavement structure design that is mechanistically robust and economically efficient in the long term. This study aims to design the thickness and compare the mechanistic performance and Life Cycle Cost (LCC) efficiency among flexible, rigid, and composite pavement alternatives. Structural dimension planning utilized the AASHTO 1993 method with a projected traffic load of 138,661,053 ESALs over a 20-year service life. Mechanistic response analysis, including critical strains and fatigue life predictions, was evaluated using the KENPAVE program. A comparative economic analysis was conducted through the LCC approach, accumulating the Initial Construction Cost (CAPEX) and Operational Maintenance Cost (OPEX). The design resulted in a 24 cm total asphalt layer (AC-WC, AC-BC, AC-Base) for flexible pavement; a 39 cm high-strength K-400 concrete slab for rigid pavement; and a 10 cm asphalt surface layer over a 26 cm K-350 concrete slab for composite pavement. KENPAVE modeling revealed vulnerabilities in the asphalt material. Flexible pavement reached its structural fatigue life prematurely at the asphalt base layer in year 1.94. In the composite pavement, the asphalt surface reached its functional fatigue life limit in year 2.84. Conversely, the rigid pavement's concrete slab exhibited a very low stress ratio (0.0477), yielding an unlimited fatigue life capacity without fatigue cracking risks. These mechanistic consequences directly impacted maintenance schedules and the total LCC. Rigid pavement proved to be the most efficient with a total cost of Rp 7.46 Billion, where maintenance accumulation was only 7.2% due to minimal structural intervention. Composite pavement incurred a moderate cost of Rp 14.19 Billion (79.0% maintenance accumulation). Meanwhile, flexible pavement incurred the highest cost of Rp 21.70 Billion (155.0% maintenance accumulation) due to the high frequency of asphalt overlay rehabilitation. Based on this technical and economic comparative synthesis, the rigid pavement is firmly established as the selected design alternative and is highly recommended for construction implementation.
| Item Type: | Thesis (Undergraduate) | ||||||||||||
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| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||||||
| Divisions: | Faculty of Engineering > Departement of Civil Engineering | ||||||||||||
| Depositing User: | Rizal Gunawan | ||||||||||||
| Date Deposited: | 21 May 2026 07:32 | ||||||||||||
| Last Modified: | 21 May 2026 08:41 | ||||||||||||
| URI: | https://repository.upnjatim.ac.id/id/eprint/51927 |
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