Effect of malaysian cellulose oil palm fiber in the tensile cracking of stone mastic asphalt

Title: Effect of malaysian cellulose oil palm fiber in the tensile cracking of stone mastic asphalt
Author(s): R. Muniandy, A. A. Selim, D. Hassim
Paper category : conference
Book title: Fifth International RILEM Conference on Reflective Cracking in Pavements
Editor(s): C. Petit, I.L. Al-Qadi and A. Millien
Print-ISBN: 2-912143-47-0
e-ISBN: 2912143764
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 265 - 272
Total Pages: 8
Nb references: 4
Language: English

Abstract: Asphalt stiffness and viscosity have played an important role in the fatigue failure mechanism of asphalt mixtures in general. Additives like polymers have been used in asphalt mixtures successfully in resisting fatigue cracking. However, the use cellulose fibers in asphalt mixes have been limited to gap graded mixtures like Stone Mastic asphalt (SMA) and Open Graded Friction Courses (OGFC) to minimize the drain-down of asphalt only. This paper looks into the use of cellulose oil palm fiber, a native product of Malaysia, in the enhancement of resistance to fatigue cracking. 150 mm by 50 mm cylindrical specimens were prepared and tested at 20°C with various proportions (0.2%, 0.4%, 0.6%, 0.8%, and1.0%) of cellulose oil palm fibers. The specimens were loaded at a constant deformation rate of 5 mm per minute of vertical ram movement until failure. The load, deformations, crack initiation and propagation were measured and analyzed. The study showed a remarkable enhancement in the fatigue resistance, the line of cracking and crack pattern for a fiber range of 0.4 to 0.7 percent by weight of total mix.

Online publication: 2004-04-15
Publication type : full_text
Public price (Euros): 0.00