Variation of Wave Velocity and Porosity of Sandstone after High Temperature Heating

• Autorzy: Sun Q. , Zhang W. , Su T. , Zhu S.

Identyfikatory

DOI

10.1515/acgeo-2016-0021

• Języki publikacji: EN

Abstrakty

EN

This paper reports the variations of mass, porosity, and wave velocity of sandstone after high temperature heating. The range of temperature to which the sandstone specimens have been exposed is 25-850°C, in a heating furnace. It has been shown that below 300°C, porosity and wave velocity change very little. Above 300°C, there is a rapid increase in porosity, but the wave velocity decreases significantly. The results of thermo gravimetric analysis (TGA), differential scanning calorimetry (DSC) and mercury intrusion porosimetry (MIP) suggest that a series of changes occurred between 400 and 600°C in sandstone could be responsible for the different patterns of variation in porosity and wave velocity

Słowa kluczowe

EN

sandstone; thermal damage; wave velocity; porosity; high temperature

PL

piaskowiec; uszkodzenie termiczne; prędkość fali; porowatość; temperatura wysoka

• Wydawca: Instytut Geofizyki PAN ; Springer
• Czasopismo: Acta Geophysica
• Rocznik: 2016
• Tom: Vol. 64, no. 3
• Strony: 633--648
• Opis fizyczny: Bibliogr. 26 poz.

Twórcy

autor

Sun Q.

• School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, China

autor

Zhang W.

• School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, China

autor

Su T.

• Research Institute of Highway Ministry of Transport, Beijing, China

autor

Zhu S.

• School of Resources and Geosciences, China University of Mining and Technology, Xuzhou, China

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę