A Study of Reliability of Predictive Models for Permanent Deformation and Fatigue Failure Related to Flexible Pavement Design

Due to repeated loads, the pavement structures will experience repeated stresses and strains resulting in permanent deformation even though the working loads are still smaller than the design load. The permanent deformation will lead to cracking and fatigue failure with the life of the pavement. This phenomenon can be reduced by increasing the stiffness, flexibility, durability, stability and water absorption of the pavement. Material modification including the utilization of waste tire rubber (WTR) and natural zeolite is one of the efforts to increase those parameters in semi flexible pavement (SFP). The aim of this study therefore, to assess the deformation and fatigue failure of SFP incorporating WTR and natural zeolite under cyclic loading. The WTR was used as an additive at the level of 3% of asphalt content while natural zeolite was used as cement replacement at the 0, 5, 15 and 25% replacement levels. Permanent deformation tests were conducted by applying wheel tracking loads with the pressure of 6.4 ± 0.15 kg/cm2 on the surface of the specimens with 1260 cycles per hour while fatigue tests were conducted on the simple supported beams with the span length of 30 cm by applying forth point loading at the frequency of 10 Hz. The test results showed that the best performance in sustaining cyclic loading was achieved at the zeolite content of 5%.

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DESAIN ULANG DAN ANALISIS RESPONS STRUKTURAL PERKERASAN LENTUR PADA JALAN PANTURA RUAS CIKAMPEK-PAMANUKAN

JMTS: Jurnal Mitra Teknik Sipil ◽

10.24912/jmts.v0i0.10488 ◽

2021 ◽

Vol 4 (1) ◽

pp. 33

Author(s):

Reynold Andika ◽

Anissa Noor Tajudin

Keyword(s):

Fatigue Failure ◽

Flexible Pavement ◽

Design Guidelines ◽

Pavement Design ◽

Public Works ◽

Primary Data ◽

Road Pavement ◽

Original Plan ◽

Main Components ◽

Pavement Thickness

This research is intended for redesign the flexible pavement on the Pantura Road for the Cikampek-Pamanukan section using three flexible pavement design guidelines that apply in Indonesia, namely Flexible Pavement Thickness Planning (2002), Road Pavement Design Manual (2013), and Road Pavement Design Manual (2017), as well as analyzing responses Structural that occurs in the form of horizontal and vertical strains, which are the main components in calculating the repetition value of permits to fatigue failure (Nf) and to rutting failure (Nd), are processed using the KENPAVE program. Primary data in the form of traffic volume is obtained from the Ministry of Public Works and Public Housing (PUPR) and LHR0 starting in 2020 with a plan age of 20 years. The results of this study indicate that the 2002 method produced the largest pavement thickness, followed by the 2013 method and finally the 2017 method which produced the smallest pavement thickness. However, the 2002 method produced the largest repetition of permits to fatigue failure (Nf) and to rutting failure (Nd). So it can be concluded that the 2017 method produces the most optimal design, because it is in accordance with the original plan design.ABSTRAKPenelitian ini ditujukan untuk mendesain ulang perkerasan lentur pada Jalan Pantura ruas Cikampek-Pamanukan menggunakan tiga pedoman desain perkerasan lentur yang berlaku di Indonesia yaitu Perencanaan Tebal Perkerasan Lentur (2002), Manual Desain Perkerasan Jalan (2013), dan Manual Desain Perkerasan Jalan (2017), serta menganalisis respons struktral yang terjadi berupa regangan horisontal dan vertikal, yang merupakan komponen utama dalam menghitung nilai repetisi izin terhadap kerusakan fatik (Nf) dan kerusakan retak alur (Nd), diolah menggunakan program KENPAVE. Data primer berupa volume lalu lintas didapat dari Kementerian Pekerjaan Umum dan Perumahan Rakyat (PUPR) dan LHR0 dimulai pada tahun 2020 dengan umur rencana 20 tahun. Hasil penelitian ini menunjukkan bahwa metode 2002 menghasilkan tebal perkerasan terbesar, kemudian dilanjutkan metode 2013, dan 2017 yang menghasilkan tebal perkerasan terkecil. Namun metode 2002 menghasilkan repetisi izin terhadap kerusakan fatik (Nf) dan kerusakan retak alur (Nd) terbesar. Sehingga dapat disimpulkan bahwa metode 2017 menghasilkan desain paling optimal, karena sesuai dengan desain rencana awal.

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