Analisis Campuran Lapis Tipis Beton Aspal (LTBA) Menggunakan Bahan Tambahan Karet Alam SIR 20 Terhadap Karakteristik Marshall

Safitri, Intan (2021) Analisis Campuran Lapis Tipis Beton Aspal (LTBA) Menggunakan Bahan Tambahan Karet Alam SIR 20 Terhadap Karakteristik Marshall. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Lapisan permukaan perkerasan jalan berfungsi untuk memikul dan menyebarkan beban lalu lintas sehingga dapat memberikan kenyamanan bagi pengguna jalan selama masa pelayanannya. Namun, kerusakan dini pada lapisan perkerasan sering terjadi sebelum masa layanan berakhir. Pemanfaatan material karet alam SIR 20 dalam campuran Lapis Tipis Beton Aspal (LTBA) pada lapis permukaan (surface) pada struktur perkerasan jalan raya diharapkan mampu membantu menyelesaikan permasalahan tersebut. Penambahan bahan karet alam dalam campuran aspal dilakukan dengan metode kering yaitu persentase kadar karet alam dihitung dari total berat aspal dan dicampur dengan agregat. Ukuran potongan karet yang dicampur adalah lolos saringan no.4 (4,75 mm) – tertahan pada saringan no.16 (1,18 mm). Adapun beberapa variasi penambahan persentase karet yang diteliti meliputi 0%, 6%, 8% dan 10%. Pengujian yang dilakukan dalam penelitian ini adalah pengujian Marshall. Hasil dari penelitian menunjukkan bahwa variasi persentase penambahan karet SIR 20 dalam campuran LTBA meningkatkan nilai karakteristik Marshall pada campuran aspal. Hasil optimum yang terbaik dari setiap kadar persentase ditunjukkan pada penambahan kadar karet 8% dan kadar aspal 5,8% dengan nilai stabilitas 2121,09 kg; nilai flow 3,80 mm; nilai VIM 3,82%; nilai VMA 17,25%; nilai VFA 77,91%; MQ 558,18 kg/mm. ===================================================================================================== The surface layer of the road pavement serves to carry and spread the traffic load to provide comfort to road users during its service period. But, early damage to the pavement layer often occurs before the service life ends. Utilization of natural rubber material SIR 20 in a mixture of Asphalt Concrete Thin-Layer (AC-TL) on the surface layer on the road pavement structure is expected to be able to help solve this problem. The addition of natural rubber to the asphalt mixture was carried out using the dry method, namely the percentage of natural rubber content was calculated from the total weight of asphalt and mixed with aggregate. The size of the mixed rubber pieces passes sieve No.4 (4.75 mm)-stuck to sieve No.16 (1.18 mm). The various variation in the addition of the percentage of rubber studied included 0%, 6%, 8% and 10%. The test carried out in this study is the Marshall test. The results of the study indicate that the variation in the percentage of addition of SIR20 rubber in the AC-TL mixture increases the marshall characteristic value of the asphalt mixture. The best optimum results of each percentage level are shown in the addition of 8% rubber content and 5.8% asphalt content with a stability value of 2121.09 kg; flow value 3.80 mm; VIM value 3.82%; VMA value 17.25%; VFA value 77.91%; MQ 558.18 kg / mm.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Aspal karet, SIR 20, karet alam, karakteristik marshall, Lapis Tipis Beton Aspal (LTBA)
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TA Engineering (General). Civil engineering (General) > TA443.A7 Asphalt
T Technology > TE Highway engineering. Roads and pavements
T Technology > TE Highway engineering. Roads and pavements > TE251.T74 Pavements--Design and construction
Divisions: Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis
Depositing User: Intan Safitri
Date Deposited: 10 Aug 2021 03:29
Last Modified: 10 Aug 2021 03:29
URI: https://repository.its.ac.id/id/eprint/85314

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