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|Title:||Tests of rock cores, Scott study area, Missouri|
|Authors:||Space and Missile Systems Organization (U.S.)|
United States. Air Force. Systems Command.
Crisp, Robert W.
Hallford, Charles R.
Scott Study Area, Missouri
|Publisher:||Concrete Laboratory (U.S.)|
Engineer Research and Development Center (U.S.)
|Series/Report no.:||Miscellaneous paper (U.S. Army Engineer Waterways Experiment Station) ; C-70-6.|
Abstract: Laboratory tests were conducted on rock core samples received from nine core holes in the Scott Area of Iron, Madison, Saint Francois, and Wayne Counties, Missouri. The results were used to determine the quality and uniformity of the rock to depths of 200 feet below ground surface. The cores were identified as predominantly rhyolite and dacite porphyry with some granodiorite and small amounts of dolomite, acid meta volcanics, and dark gray volcanic breccia. Specific gravity, Schmidt hardness, compressional and shear velocity, and uniaxial compressive strength tests indicated that the highly to critically fractured material, representing approximately 10 percent of the core tested, was of questionable competence. The remainder of the core from this area was found to be relatively competent material. An assessment of the area on a hole-to-hole basis indicates that all but two of the Scott formations that were sampled and tested offer good possibilities as competent hard rock media.
|Rights:||Approved for public release; distribution is unlimited.|
|Appears in Collections:||Miscellaneous Paper|
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|MP-C-70-6.pdf||7.17 MB||Adobe PDF|