SEDL / STP / STP1108-EB / STP17831S

Polymer Modified Hot Mix Asphalt — Oregon Experience

Rogge, DF
Assistant ProfessorProfessor of Civil EngineeringRoadway Materials Engineer, Oregon State University, CorvallisSalem Oregon, OR

Terrel, RL
Assistant ProfessorProfessor of Civil EngineeringRoadway Materials Engineer, Oregon State University, CorvallisSalem Oregon, OR

George, AJ
Assistant ProfessorProfessor of Civil EngineeringRoadway Materials Engineer, Oregon State University, CorvallisSalem Oregon, OR

Pages: 22    Published: Jan 1992

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Abstract

The Oregon Department of Transportation (ODOT) has undertaken research into polymer modified asphalt binders in hot mix asphalt (HMA) with the expectation that such binders have the potential to provide more cost-effective, long-lasting asphalt concrete pavement. The research has involved three field installations with control sections of conventional asphalt and a laboratory study. Modifiers used in field installations were ethylene-vinyl-acetate (EVA), styrene-butadiene (SB), and styrene-butadiene-rubber (SBR). This paper discusses ODOT's research efforts with polymer modified HMA, and summarizes the findings of this research. ODOT's adoption of the Pacific Coast Conference on Asphalt Specifications' “Performance Based Asphalt Cement Specifications” is the next logical step based on knowledge gained from these research efforts.