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Date: 2006-10-11 14:21:58 | Materials in Use in U.S. Interstate Highways Materials Usage Natural aggregates (construction sand and gravel and crushed stone) make up the largest component of nonfuel mineral materials consumed in the United States (fAdd to Reading ListSource URL: pubs.usgs.govDownload Document from Source WebsiteFile Size: 815,12 KBShare Document on Facebook |