Path: TopMembercecep@unix.lib.itb.ac.id

PALM FIBRE AS AN ADDITIVE
IN GAP-GRADED BITUMINOUS MIXTURE

Master Theses from / 2005-03-04 23:45:19
Oleh : EDDY HARYONO, S2 - Highway System Engineering
Dibuat : 2000-00-00, dengan 1 file

Keyword : Fibrous material, fibre for use in road construction, Hot Rolled Asphalt.
Nomor Panggil (DDC) : T 625.85 HAR
Sumber pengambilan dokumen : 2000/2817

Extensive production of palm oil in Indonesia produces large quantities of waste product that includes fibrous material. The potential of this fibre for use in road construction warrants consideration. If the fibre can be used effectively, it may provide one solution to improve fleXible pavement performance in. Indonesia. This thesis decribes an evaluation of the effect of adding different amounts and lengths of palm fibre on binder properties and on the mechanical properties on Hot Rolled Asphalt (HRA) wearing course mix. Fibre lengths investigated were 0.25cm and 0.50cm. Fibre contents were 0.03% and 0.05% of the total weight of mix; in the bitumen-fibre blends, the amount of bitumen and fibre in the sample reflected these contents. The mix used in the study was HRA wearing course mix based on BS 594:1985 Type C. The binder used was 60/70 penetration grade produced by Pertamina Cilacap. There were two phases to the evaluation, the first was an investigation into the characteristics of bitumen and bitumen-fibre blends. The results indicated that the penetration and ductility of the bitumen-fibre blends is generally lower than that of the bitumen alone, and the softening point temperature is higher. Overall the addition of fibre appears to result in a slight reinforcing effect. The penetration index is influenced to a certain extent by the addition of fibre but there is no consistent trend with regard to the influence of fibre content and length. The second phase of the investigation involved Marshall mix design and evaluation of mixes at optimum bitumen content by means of the Marshall immersion, indirect tensile strength and wheel tracking tests. Marshall analysis indicated optimum. bitumen content to be lowest for the mix made without fibre. The retained stability of the mix made without fibre is 86.8%; the highest retained stability is achieved with the mix containing 0.03% fibre, 0.25cm long (89.9%) while the mix made with 0.05% of 0.25cm long fibre has the lowest retained stability {80.6%). Fibre content and length has little effect on indirect tensile strength and in the wheel tracking test, the performance of mix made without fibre is intermediate between that of mixes made with fibre. Overall the data indicated that there is little advantage to be gained by adding to HRA mix palm fibre in the lengths and amounts used in this investigation.

Deskripsi Alternatif :

Produksi ekstensif minyak sawit di Indonesia menghasilkan produk limbah dengan kuantitas besar terrnasuk material berserat. Potensial pemanfaatan serat pada konstruksi jalan menjadi tuntutan pertimbangan. Jika serat dapat digunakan secara efektif, maka merupakan satu jawaban untuk meningkatkan kinerja dari perkerasan di Indonesia. Tesis ini menguraikan evaluasi pengaruh penambahan serat sawit dengan perbedaan jumlah dan panjang dalam sifat-sifat aspal dan sifat-sifat mekanik dari campuran lapis aus Hot Rolled Asphalt (HRA). Panjang serat yang diselidiki 0,25cm dan 0,50cm. Kadar serat 0,03% dan 0,05% terhadap berat total campuran; dalam campuran aspal-serat, juMlah aspal dan serat mencerminkan kadarkadar tersebut. Campuran yang digunakan'dalam studi ini adalah HRA untuk campuran lapis aus berdasarkan BS 594:1985 Type C. Aspal yang digunakan adalah aspal penetrasi 60/70 produksi Pertamina Cilacap. Studi ini dibagi dua tahap, tahap pertama mempelajari karakter dari aspal dan campuran aspalserat. Hasil dari studi ini menunjukkan bahwa penetrasi dan daktilitas dari campuran aspal-serat umumnya lebih rendah dibanding hanya aspal, dan temperature titik lembek lebih tinggi. Secara keselpruhan tambahan serat memperlihatkan sedikit pengaruh penulangan. Indek penetrasi dipengaruhi oleh tambahan serat sampai tingkat tertentu tetapi tidak ada ketenderungan yang tetap dari pengaruh kadar dan panjang serat. Tahap kedua mencakup- penelitian perencanaan Marshall dan evaluasi campuran pada nilai kadar aspal optimum seperti Marshall rendaman, kuat tekan tidak langsung dan pengujian wheel tracking. Analisa Marshall menunjukkan nilai kadar aspal optimum campuran paling rendah untuk campuran tanpa serat. Stabilitas sisa campuran tanpa serat adalah 86,8%; stabilitas sisa tertinggi didapat pada campuran dengan 0,03% serat, panjang 0,25cm (89,9%) dan campuran dengan 0,05% serat, panjang 0,25cm mempunyai stabilitas sisa terendah (80,6%). Kadar dan panjang serat mempunyai pengaruh sedikit dalam kuat tekan tidak langsung dan pengujian wheel tracking. Kinerja campuran tanpa serat berada diantara campuran dengan serat. Secara keseluruhan, data menunjukkan bahwa hanya ada sedikit nilai tambah yang didapat pada campuran HRA-serat sawit dengan jumlah dan panjang seperti dalam penelitian.

Beri Komentar ?#(0) | Bookmark

PropertiNilai Properti
ID Publisher
OrganisasiS2 - Highway System Engineering
Nama KontakYoka Adam Nugrahaa, S.Sos.
AlamatJl. Ganesha 10
KotaBandung
DaerahJawa Barat
NegaraIndonesia
Telepon022 2500089
Fax62-22-2500089
E-mail Administratordigilib@lib.itb.ac.id
E-mail CKOinfo@lib.itb.ac.id

Print ...

Kontributor...

  • Supervisor: Bambang L. Siswosoebrotho; Supervisor: James McElvaney, Editor: cecep@

Download...