Digital rock physics and laboratory considerations on a high-porosity volcanic rock: micro-XRCT data sets

Schepp, Laura L.; Ahrens, Benedikt; Balcewicz, Martin; Duda, Mandy; Nehler, Mathias; Osorno, Maria; Uribe, David; Steeb, Holger; Nigon, Benoit; Stöckhert, Ferdinand; Swanson, Donald A.; Siegert, Mirko; Gurris, Marcel; Saenger, Erik H.; Ruf, Matthias

doi:10.18419/darus-680

2020

DOI: 10.18419/darus-680

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Digital rock physics and laboratory considerations on a high-porosity volcanic rock: micro-XRCT data sets

Laura L. Schepp¹,

Benedikt Ahrens²,

Martin Balcewicz³

et al.

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Digital rock physics and laboratory considerations on a high-porosity volcanic rock

Schepp

Ahrens

Balcewicz

et al. 2020

Sci Rep

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Digital rock physics combines microtomographic imaging with advanced numerical simulations of effective material properties. It is used to complement laboratory investigations with the aim to gain a deeper understanding of relevant physical processes related to transport and effective mechanical properties. We apply digital rock physics to reticulite, a natural mineral with a strong analogy to synthetic open-cell foams. We consider reticulite an end-member for high-porosity materials with a high stiffness and brittleness. For this specific material, hydro-mechanical experiments are very difficult to perform. Reticulite is a pyroclastic rock formed during intense Hawaiian fountaining events. the honeycombed network of bubbles is supported by glassy threads and forms a structure with a porosity of more than 80%. Comparing experimental with numerical results and theoretical estimates, we demonstrate the high potential of in situ characterization with respect to the investigation of effective material properties. We show that a digital rock physics workflow, so far applied to conventional rocks, yields reasonable results for high-porosity rocks and can be adopted for fabricated foam-like materials with similar properties. Numerically determined porosities, effective elastic properties, thermal conductivities and permeabilities of reticulite show a fair agreement to experimental results that required exeptionally high experimental efforts.

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Digital rock physics and laboratory considerations on a high-porosity volcanic rock

Schepp

Ahrens

Balcewicz

et al. 2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

show abstract

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Digital rock physics and laboratory considerations on a high-porosity volcanic rock: micro-XRCT data sets

Cited by 1 publication

References 0 publications

Digital rock physics and laboratory considerations on a high-porosity volcanic rock

Digital rock physics and laboratory considerations on a high-porosity volcanic rock

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