Coastal Oregon is deficient in quality construction aggregates.
There is, however, an abundance of lower quality, or marginal, aggregate
available for construction purposes. An evaluation of these marginal
aggregates is the purpose of this paper.
There are four classes of marginal rocks found on the Oregon Coast.
Basalts, high in...
Rubber-modified asphalt pavements have been used in Sweden and the United States since the 1970's. In these applications ground recycled tire particles (0.25 inch minus) are added to a gap-graded aggregate and then mixed with hot asphalt cement. The benefits of adding rubber to the mix include increased skid resistance...
Moisture damage has long been recognized as one of the most
critical factors influencing the performance of asphalt concrete (AC)
pavements. This moistureinduced damage occurs from either the
physical separation of the asphalt film from the aggregate or the
softening of the asphalt binder within the AC mixture in the...
Significant use of cold in-place recycling (CIR) has occurred in
Oregon since 1984 as an alternative to other rehabilitation techniques
or to the reconstruction of distressed asphalt concrete (AC) pavements.
Due to the initial success of the projects cold recycled during 1984-85,
the Oregon Department of Transportation (ODOT) and Oregon...
Oregon College of Education (OCE) is a small, liberal arts college with a special emphasis on the preparation of teachers. Its student population is predominantly from Oregon's Willamette Valley area. OCE developed specific objectives for its teacher education program and the purpose of this study was to determine whether the...
There is a connection between science and art. This study is specifically looking at the connection between soil science, art, and biochemistry. The traditional display of research in the sciences is in a written form such as a manuscript or journal article. To challenge this traditional presentation of scientific knowledge...
Electric power needs will only grow over the next decades as more humans ascend from poverty into the middle class. Currently, the majority of electric power is generated by burning fossil fuels. To help mitigate the undesirable effects of burning fossil fuels research is being done to increase the efficiency...