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Recommended Papers for: Rock

Total Papers Found: 10

Thermal and physical properties of reconsolidated crushed rock salt as a function of porosity and temperature

Crushed salt can be used as a backfill in salt repositories to bury and conduct heat away from radioactive waste in salt repositories. Since crushed salt compacts during reconsolidation, its thermo-physical properties will vary because of changes in porosity. A Transient Plane Source thermal constant analyzer was used to measure thermal conductivity of the salt samples. Thermal conductivity was found to decrease with increasing temperatures....

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Modelling of thermal rock mass properties at the potential sites of a Swedish nuclear waste repository

This article looked at the simulation model used to control temperature evolution in the field for Swedish nuclear waste repositories. Heat transport properties of rock are known key factors for the repository layout and were measured using the Transient Plane Source (TPS) method. Compared to all samples tested, results found bedrock dominated by deformed granitoid rocks were characterized by relatively high thermal conductivities. ...

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Damage characteristics and thermo-physical properties changes of limestone and sandstone during thermal treatment from -30 °C to 1000 °C

The present study looked at the damage characteristics and thermophysical properties of limestone and sandstone at -30 to 1000 °C. A thermal constants analyzer was used to measure thermal conductivity, thermal diffusivity, and specific heat of the rock samples. Results showed that water migration and phase transition were two core factors for thermal behaviors. Thermal conductivity and thermal diffusivity were found to decrease during the heating process, while specific heat capacity ...

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Thermal Conductivity of Rocks and the Analysis of its Influence Factors

This paper summarizes the measuring method of thermal conductivity of rocks and the parameters controlling the transport and exchange of thermal energy. The transient plane source method was analyzed and found to have advantages over other methods, such as short test times and the ability to measure solid, liquid and powder materials.  Thermal conductivity of rock was tested using an instrument. Results show thermal conductivity of rock in a saturate ...

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Comparison of thermal properties measured by different methods

In this paper, the thermal conductivity of rock samples was tested using three different methods: the transient plane source (TPS) method, the divided bar method, and calorimetric method. Two rock samples were tested under the TPS method with different procedures (i.e. heating and cooling times, sizes of samples). The results of the TPS method were slightly lower than the results of the divided bar method, but yielded an acceptable ...

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