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Standard Test Method for Determination of Rock Hardness by Rebound Hammer Method
Automaticky přeložený název:
Standardní zkušební metoda pro stanovení Rock tvrdosti Rebound Hammer metodou
NORMA vydána dne 10.6.2000
Označení normy: ASTM D5873-00
Poznámka: NEPLATNÁ
Datum vydání normy: 10.6.2000
Kód zboží: NS-32904
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Keywords:
cores, hardness, rock mass, rocks, unconfined compressive test, ICS Number Code 13.080.20 (Physical properties of soil)
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1.1 This test method covers the testing apparatus, sampling, test specimen preparation, and testing procedures for determinng the rebound hardness number of rock material using a spring-driven steel hammer, or concrete test hammer. 1.2 This test method is best suited for rock material with uniaxial compressive strengths (see Test Method D2938) ranging between approximately 1 and 100 MPa. 1.3 The portable testing apparatus may be used in the laboratory or field to provide a means of rapid assessment of rock hardness or to serve as an indicator of rock hardness. 1.4 The values stated in SI units are to be regarded as the standard. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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