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Portland State University

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Full-Text Articles in Social and Behavioral Sciences

Resurfacing A Trail In Oregon Using Volcanic Ash, Charles Riley, Ashton Greer Dec 2022

Resurfacing A Trail In Oregon Using Volcanic Ash, Charles Riley, Ashton Greer

TREC Project Briefs

In the latest instance of taking research to practice, researchers at Oregon Tech have completed a pilot section of trail using a NITC-developed sustainable paving method. A quarter-mile section of the Klamath Geo Trail, just east and up the hill from the Oregon Tech Klamath Falls campus, has been successfully resurfaced using volcanic ash from Mount Mazama.


Mount Mazama Ash Offers Sustainable Solution For Ada Accessibility On Unpaved Trails, Matthew D. Sleep, Damian K. Matzen May 2020

Mount Mazama Ash Offers Sustainable Solution For Ada Accessibility On Unpaved Trails, Matthew D. Sleep, Damian K. Matzen

TREC Project Briefs

National Institute for Transportation and Communities (NITC) researcher Matthew Sleep of Oregon Tech investigated whether Mazama ash could be used in place of portland cement, as a natural pozzolan. Results indicate that it can—and unpaved trail surfaces made with Mazama ash are actually firmer and more durable than those made with portland cement alone. Such trails can provide a reliable surface for wheeled mobility devices.


Making Sustainable Roadways From 7,000 Year-Old Volcanic Ash, Matthew D. Sleep, Morgan B. Masley Jun 2018

Making Sustainable Roadways From 7,000 Year-Old Volcanic Ash, Matthew D. Sleep, Morgan B. Masley

TREC Project Briefs

Volcanic ash from Mt. Mazama, prevalent in Southern Oregon, could be used as a natural pozzolan for unpaved roadway improvements. Sustainability benefits would include reduced carbon emissions.