Characterization of OGFC Mixtures Containing Lignin Fibers

Abstract:

This paper deals with the viability of using lignin fibers as an additive in OGFC mixtures. Draindown test results indicated that OGFC mixtures with the two kinds of fibers can both be effectively used to retard draindown of the binder and mineral filler. Mixture designs were performed for a range of 3.5–6.0% asphalt content. Laboratory tests including indirect tensile load tests, Cantabro test, soaking Cantabro test were carried out on OGFC mixtures to determine the tensile strength, anti-abrasion ability and durability. The test results indicated that OGFC mixtures with lignin fibers showed improvement in strength, improved resistance to abrasion, and reduce moisture susceptibility when compared with mixtures without fibers. Comparison of test performance of two different lignin fibers added to OGFC mixture shows that flocculent lignin Fibers is superior to the Granular fiber.

• Periodical: Applied Mechanics and Materials (Volumes 174-177)
• Pages: 775-781
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.174-177.775
• Online since: May 2012
• Authors: Hui Wang, Li Ping Liu, Li Jun Sun
• Keywords: Abrasion, Draindown, Flocculent Lignin Fibers, Granular Lignin Fiber, OGFC, Tensile Strength

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