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Standard Test Method for Specific Heat of Rock and Soil
Automaticky přeložený název:
Standardní zkušební metoda pro specifické teplo Rock a půdy
NORMA vydána dne 1.7.2008
Označení normy: ASTM D4611-08
Poznámka: NEPLATNÁ
Datum vydání normy: 1.7.2008
Kód zboží: NS-27891
Počet stran: 4
Přibližná hmotnost: 12 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
Zemní práce. Hloubicí práce. Budování základů. Podzemní práce
Keywords:
calibration, calorimeter, enthalpy, equilibrium temperature, heating tests-specific heat, rock, soil, temperature tests, thermal analysis-diffusivity, Calibration--soil/rock analysis instrumentation, Calorimeter, Enthalpy, Equilibrium temperature, Heating tests--soil/rock, Instantaneous specific heat, Rock materials/properties/analysis, Soil, Temperature tests--soil/rock/related materials, Thermal analysis (TA)--soil/rock
Significance and Use | ||||||||||||
Specific heat is a basic thermodynamic property of all substances. The value of specific heat depends upon chemical composition and temperature. The rate of temperature diffusion through a material, thermal diffusivity, is a function of specific heat; therefore, specific heat is an essential property of rock and soil when these materials are used under conditions of unsteady or transient heat flow. |
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1. Scope | ||||||||||||
1.1 This test method covers the determination of instantaneous and mean specific heat of rock and soil. 1.2 This test method employs the classical method of mixtures. This provides procedures and apparatus simpler than those generally used in scientific calorimetry, an accuracy that is adequate for most rocks and soils, and a degree of precision that is reproducible by laboratory technicians of average skill. While this test method was developed for testing rock and soil, it is easily adaptable to measuring the specific heat of other materials. 1.3 The testing procedure provides an instantaneous specific heat over the temperature 25 to 300°C or a mean specific heat in that temperature range. 1.4 The test procedure is limited to dry samples. 1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. 1.6 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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2. Referenced Documents | ||||||||||||
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