Laboratory Diameteral Fatigue Performance of Stone Matrix Asphalt with Cellulose Oil Palm Fiber | Zendy

Ratnasamy Muniandy | Zendy; Bujang B. K. Huat | Zendy

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Laboratory Diameteral Fatigue Performance of Stone Matrix Asphalt with Cellulose Oil Palm Fiber

Author(s) -

Ratnasamy Muniandy,

Bujang B. K. Huat

Publication year - 2006

Publication title -

american journal of applied sciences

Language(s) - English

Resource type - Journals

eISSN - 1554-3641

pISSN - 1546-9239

DOI - 10.3844/ajassp.2006.2005.2010

Subject(s) - asphalt , palm oil , cellulose , fiber , composite material , materials science , matrix (chemical analysis) , asphalt pavement , pulp and paper industry , petroleum engineering , environmental science , forensic engineering , waste management , engineering , agroforestry , chemical engineering

Stone Matrix Asphalt (SMA) is a gap-graded mix that is gaining popularity worldwide. Generally, gap graded mixes are thought to be weak in fatigue resistance. In this study, cellulose fibers were pre-blended in PG64-22 binder with fiber proportions of 0.2%, 0.4%, 0.6%, 0.8% and 1.0% by weight of aggregates. The fiber-modified binder showed improved rheological properties and showed that the PG64-22 binder can be modified and raised to PG70-22 grade. The cellulose oil palm fiber (COPF) was found to improve the diameteral fatigue performance of SMA design mix. The fatigue life increased to a maximum at a fiber content of about 0.6%, whilst the tensile stress and stiffness also showed a similar trend in performance. The initial strains of the mix were lowest at a fiber content of 0.6%

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