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THE EFFECT OF THE ELASTICITY MODULUS OF ASPHALTED SURFACES ON RUTTING DEPTH ON NARROW CRACKING CONDITIONS A. A Brigita A. Kumara; Syamsul Arifin; Taslim Bahar
Berkala Forum Studi Transportasi antar Perguruan Tinggi Vol. 1 No. 1 (2023): Berkala Forum Studi Transportasi antar Perguruan Tinggi
Publisher : Prodi Teknik Sipil, Fakultas Teknik, Universitas Jember dan Forum Studi Transportasi antar Perguruan Tinggi

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Abstract

The increase in traffic growth on the Taweli - Pantoloan section, also increased the traffic load that passes through the section and caused rutting and cracking. The modulus elasticity is an important factor that affects the performance of asphalt pavement, therefore it is necessary to predict when narrow cracking, wide cracking, 50% cracking, and rutting will occur. HDM III is used to predict when it will occur, from CBR subgrade and annual average daily traffic data on Tawaeli – Pantoloan section, the pavement performance is planned for 5,10, 15, and 20 years. From the results of the study, it was found that the increasing road performance, the greater the value of the traffic load, which in increasing the thickness of asphalt pavement, and the faster the road will experience narrow cracking, wide cracking, and 50% cracking. Variation of modulus elasticity gives that the lower the modulus elasticity of asphalt mixture (SME), the faster the cracks occur on the asphalt pavement and vice versa. The effect of narrow cracking (TYN), wide cracking (TYW), and 50% cracking on the depth of rutting (RDM) are directly proportional. ABSTRAK  Pertumbuhan lalu lintas yang semakin meningkat di Ruas Jalan Taweli – Pantoloan mengakibatkan peningkatan beban lalu lintas yang melewati jalan tersebut dan mendorong terjadinya kerusakan berupa rutting dan retak pada perkerasan jalan. Modulus elastisitas merupakan faktor penting yang akan mempengaruhi kinerja perkerasan aspal, sehingga perlu diketahui bagaimana pengaruh modulus elastisitas terhadap prediksi waktu terjadinya kerusakan retak halus, retak lebar, retak 50% dan kedalaman rutting yang terjadi. Dalam memprediksi waktu terjadinya kerusakan terrsebut digunakan model HDM III, dari data CBR tanah dasar dan LHR di Ruas Jalan Tawaeli – Pantoloan direncanakan umur layanan selama 5, 10, 15 dan 20 tahun. Dari hasil penelitian didapatkan semakin meningkat masa layan maka semakin besar nilai beban lalu lintasnya, mengakibatkan semakin tebal lapis permukaan beraspal dan semakin cepat jalan tersebut diprediksi mengalami retak halus, retak lebar dan retak 50%. Dengan variasi modulus elastisitas didapatkan semakin rendah nilai modulus elastisitas campuran beraspal (Sme) maka semakin cepat terjadinya retak pada suatu perkerasan jalan dalam melayani beban lalu lintas yang ada dan begitu sebaliknya. Pengaruh Retak Halus (TYN), Retak Lebar (TYW) dan Retak 50% terhadap kedalaman Rutting (RDM) yaitu semakin lama masa layan suatu jalan sampai terjadinya retak halus, retak lebar dan retak 50% maka semakin dalam rutting yang terjadi.
THE EFFECT OF CBR VALUES ON THE SUBGRADE LAYER ON RUTTING DEPTH ON FINE CRACKS IN ASPHALT PAVEMENTS Rizki Amalia; Syamsul Arifin; Sukiman Nurdin
Berkala Forum Studi Transportasi antar Perguruan Tinggi Vol. 1 No. 1 (2023): Berkala Forum Studi Transportasi antar Perguruan Tinggi
Publisher : Prodi Teknik Sipil, Fakultas Teknik, Universitas Jember dan Forum Studi Transportasi antar Perguruan Tinggi

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Abstract

Problems in the basic soil layer, which is generally sandy soil will greatly affect the life of the planned cracking and rutting in the construction of the paved layer. The purpose of this study was to determine the effect of CBR values on the Subgrade layer on the life of the paved road pavement plan until there began to be a fine crack on the paved road surface and predict the depth of rutting on the road surface when fine cracks began to occur. The method used in this study is the Determination of TYN and RDM Values using the HDM III. Based on the results of the analysis, it can be seen that the higher the CBR value, the longer it takes for a pavement to experience fine cracks as well as at the life of plans of 10, 15, and 20 years where the CBR value is directly proportional to the length of time a fine crack occurs. Predicted intensity of rutting (Decrease) at the time of the fine crack at the age of the 5-year plan, there was a decrease of 3.01 mm after 8.14 years of the road being opened. At the age of the 20-year plan, the value decreased by 2.33 mm after 5.438 years of the road being opened.