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A Standard Rock Suite for Rapid Excavation Research.
Krech-WW; Henderson-FA; Hjelmstad-KE
NTIS: PB 233 485 :29 pages
Rock property data is needed over a wide range of parameters for the optimum execution of rapid excavation research. Eight rock types were chosen by the Bureau of Mines for a standard rock suite for such research. Large rock blocks were quarried and the standard physical and mechanical properties measured and documented. The eight rock types that comprise the rock suite are Barre granite, Berea sandstone, Dresser basalt, Holston limestone, Salem limestone, Sioux quartzite, St. Cloud gray granodiorite, and Westerly granite. Geologic, petrographic, physical-property, and mechanical-property test data are reported for each rock type. The information is the first step in the building of a comprehensive property listing for the eight rock types. A limited number of rock cubes are available from the Bureau of Mines Twin Cities Mining Research Center for use by researchers to broaden the information available on the suite.
IH; Report of Investigations
NTIS Accession No.
NTIS: PB 233 485
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division