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- Research methods and measures:
- Tensile tests
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6/1/2011 - Technology NewsTo develop a portable field-use testing system for conducting ASTM-1550-05 round determinate panel tests.
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6/1/2011 - Technology NewsTo develop a practical method of measuring shotcrete adhesion strength in underground mines.
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1/1/2011 - Peer reviewed journal articlesNIOSH is researching safe practices for the use of shotcrete as ground support in underground mines, particularly mines operating in weak host rock; including a rugged, portable direct tensile test system for measuring shotcrete adhesion strength.
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2/1/2010 - Conference papersThis paper presents the results of tests, describes the portable test system, and addresses some of the design issues encountered in the development of a rugged and reliable method for determining shotcrete adhesion strength in underground mines.
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2/1/2005 - Conference papersResearchers conducted tests to evaluate the tensile strength, fiber count, and adhesion of shotcrete applied to panels at the Chief Joseph Mine, a research and training facility operated by Montana Tech.
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1/1/1992 - Reports of InvestigationsThe U.S. Bureau of Mines established a wire rope research laboratory to examine the factors that affect the life of wire rope. The tests indicated that once a wire rope nears the end of its service life, both deterioration and the consequent loss of ro...
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Content source: National Institute for Occupational Safety and Health, Mining Program