首页|Thermomechanical properties of detrital limestone from the Nowe Brusno town (Poland)
Thermomechanical properties of detrital limestone from the Nowe Brusno town (Poland)
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NSTL
Elsevier
? 2022 Elsevier LtdNowe Brusno town is known from its unique geology and history closely connected to the use of local limestones. Miocene limestones (Upper Baden) have been exploited there since the 15th century, used for grain processing, specifically for the construction of millstones and querns. The popularity of the material is evidenced by products made of this limestone in neighbouring towns such as Zamo??, Józefów, or even Lviv, which is located more than 100 km away. The preserved products can most often be found in the form of tomb crosses and wayside shrines. Research on the thermal properties of rocks allows a detailed analysis of the behaviour of these materials at different temperatures and their insulating properties, which are also one of the important factors in the light of the progressing climate change. These features are necessary for considering and using geothermal energy, designing buildings based on heat exchange between construction and the ground, and determining the possibility of heat exchange in the case of underground transmission infrastructure. Understanding the thermal properties of rock materials currently plays an important role in road construction and protection of the ground against frost and temperature fluctuations. The selection of materials with appropriate insulating properties allows to reduce the risk of frost heave and other degradation processes of the Surface of communication routes. Moreover, in the light of sustainable development, it allows maximum use of quarry excavated rocks. Large-sized blocks of stone of detrital limestone from the Nowe Brusno quarry are used in local architecture as structural and decorative elements, while irregular and smaller fragments are used as aggregate and crushed stone in road construction. This paper presents measurements results of thermal conductivity of detrital limestones determined rock samples in air-dry (natural) state at approx. 25°C (61 measurements); fully hydrated at approx. 5°C (44 measurements) and frozen state (approx. -8°C) (28 measurements). Additionally, for complete information on the rock material, tests of geomechanical (physical and mechanical) properties, such as volumetric density, porosity, and uniaxial compression strength were carried out. The obtained thermal parameters of the analysed rocks will feed the "Engineering and Geological Database - Physical and mechanical properties of soils and rocks (BDGI WFM)".
NSTL
Elsevier
