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Construction aggregates available along the Oregon coast Public Deposited

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https://ir.library.oregonstate.edu/concern/administrative_report_or_publications/cr56n5112

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  • The natural reserves of high quality construction aggregates found along the Oregon coast are being depleted. The impending shortages are compounded by restrictions being placed on existing aggregate sources because of energy. economic, and environmental considerations, and zoning regulations. A cur­rent solution for the shortage is to import quality aggregate from areas that have more abundant reserves, such as the Willamette Valley. Figure 1 shows the amounts of aggregate imported to the Oregon coast from various sources, usually by truck. As this practice is both costly and energy-intensive, alternative sources of aggregate must be identified. As abundant supplies of lower-quality aggregates can be found near the Oregon coast, one alternative is to use these lower-quality, or "marginal," aggregates for construction purposes, particularly for road building materials. The purpose of this paper is to identify the general types and extent of aggregates available along the Oregon coast. An evaluation of the impor­tant characteristics of the aggregates and the problems associated with their use in construction is also provided.
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