Determining Crack Aperture Distribution in Rocks Using the 14 C‐PMMA Autoradiographic Method: Experiments and Simulations
| Autor: | L. Fonteneau, Jukka Kuva, M. Siitari-Kauppi, M. Bonnet, Laurent Caner, Paul Sardini, S. Billon |
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| Přispěvatelé: | Institut de Chimie des Milieux et Matériaux de Poitiers (IC2MP), Université de Poitiers-Institut national des sciences de l'Univers (INSU - CNRS)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Societe Etudes Recherches Matériaux (ERM), University of Helsinki, Geological Survey of Finland, Department of Chemistry, Geological disposal of spent nuclear fuel |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
1171 Geosciences
Materials science 010504 meteorology & atmospheric sciences Aperture 116 Chemical sciences Characterisation of pore space in soil FLUID-FLOW 010502 geochemistry & geophysics 01 natural sciences Matrix (geology) Physics::Geophysics Geochemistry and Petrology Earth and Planetary Sciences (miscellaneous) Fluid dynamics [CHIM]Chemical Sciences Composite material CRYSTALLINE ROCK Porosity IMPREGNATION 0105 earth and related environmental sciences PORE-SPACE POROSITY PMMA EVOLUTION SOLUTE TRANSPORT Geophysics Distribution (mathematics) Space and Planetary Science [SDU]Sciences of the Universe [physics] FRACTURED MEDIA MATRIX |
| Zdroj: | Journal of Geophysical Research : Solid Earth Journal of Geophysical Research : Solid Earth, American Geophysical Union, 2020, 125 (1), ⟨10.1029/2019JB018241⟩ |
| ISSN: | 2169-9313 2169-9356 |
| Popis: | International audience; Because cracks control the global mechanical and transport properties of crystalline rocks, it is of a crucial importance to suitably determine their aperture distribution, which evolves through alteration processes and rock weathering. Due to the high variability of crack networks in rocks, a multiscale approach is needed. The 14C‐PMMA (polymethylmethacrylate) method was developed to determine crack apertures using a set of artificial crack samples with different controlled apertures and tilt angles and also using Monte Carlo simulations. The experiments and simulations show the same result: the estimation of apparent aperture wA was successful regardless of tilt angle, even if the estimates are less accurate for low tilt angles ( |
| Databáze: | OpenAIRE |
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