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Metadata Files

Data Publication

Micro-XCT images, grain size distributions and mechanical data used in: "Uniaxial compaction of sand using 4D X-ray tomography: The effect of mineralogy on grain-scale compaction mechanisms."

Jeroen. F. Van Stappen | Suzanne J.T. Hangx

Utrecht University

(2020)

Descriptions

The mechanical behaviour of sand aggregates is often studied as a proxy for poorly consolidated sands and highly porous sandstones. Only recently research aimed at understanding sand deformation has started to use techniques that allow for direct observation of the in-situ grain-scale processes. Using state-of-the-art, time-lapse micro X-ray computed tomography (micro-XCT) imaging, the influence of mineralogy on the compaction of sand aggregates has been investigated by performing uniaxial compaction experiments on four different mineral assemblies (quartz, K-feldspar, quartz + K-feldspar and quartz + K-feldspar + clay) at room temperature and dry conditions. For the experiments, a bespoke uniaxial compaction device (sample diameter 2 mm) was constructed and coupled with micro-XCT imaging. This enabled in-situ observation of the strain-accommodating processes during deformation. To verify that the microstructural evolution observed in the small-scale experiments is representative for larger aggregate behaviour, conventional, centimetre-sized, control experiments were performed. The observed inelastic deformation was mainly accommodated by processes such as intragranular cracking and intergranular sliding. At low axial stresses (10 MPa), grain fracturing mainly occurred in K-feldspar grains, if present, along cleavage planes. Only at higher axial stresses, fracturing of quartz grains, if present, was also observed. Presence of clays, in pores and grain contacts, delayed the onset of quartz grain breakage and enhanced porosity reduction as clay in grain contacts facilitated grain sliding and rearrangement. The data provided in this dataset include all micro-XCT images, the grain size distributions determined using a Malvern Instruments Mastersizer S long bed particle sizer, the grain size distributions determined based on the micro-XCT images, and the mechanical data obtained in uniaxial compaction tests on pure quartz, pure feldspar, a mixture of quartz and feldspar, and a mixture of quartz, feldspar and clay material. The mechanical data illustrates the stresses and strains during small-scale experiments which were imaged using X-ray tomography. All scans on which the manuscript is based are provided as a series of .tif-images which together form the 3D micro-XCT data.

Keywords


Originally assigned keywords
Natural Sciences - Earth and related environmental sciences (1.5)
Sand pack compaction
Micro X-ray computed tomography
Inelastic deformation
Uniaxial
clay
feldspar
quartz
Friction > Imposed Stress
Grain size distribution
Photography
Solid Earth > Rocks / Minerals / Crystals > Sediments
EPOS
multi-scale laboratories
rock and melt physics properties

Corresponding MSL vocabulary keywords
inelastic deformation
clay
clay
quartz
grain size distribution
grain size distribution
grain size distribution

MSL enriched keywords
Inferred deformation behavior
deformation behaviour
inelastic deformation
minerals
silicate minerals
phyllosilicates
clay
unconsolidated sediment
clastic sediment
clay
tectosilicates
quartz
Measured property
grain size distribution
Measured property
grain size distribution
Analyzed feature
grain size and configuration
grain size
grain size distribution
sand
strain
strain
Apparatus
X-ray tomography
Technique
imaging (3D)
computed tomography (CT)
sedimentary rock
sandstone
porosity
microphysical deformation mechanism
intragranular cracking
porosity
deformation microstructure
brittle microstructure
intragranular crack
generic deformation microstructure
cleavage

MSL enriched sub domains i

rock and melt physics
analogue modelling of geologic processes
microscopy and tomography

Source

https://public.yoda.uu.nl/geo/UU01/DHYKQ1.html

Source publisher

Utrecht University


DOI

10.24416/uu01-dhykq1


Creators

Jeroen. F. Van Stappen

Utrecht University | Ghent University

ORCID:

https://orcid.org/0000-0003-2191-2888

Suzanne J.T. Hangx

Utrecht University

ORCID:

https://orcid.org/0000-0003-2253-3273

Author identifier (Scopus):

25951270800


Contributors

Cuesta Cano, Andrea

Researcher

Utrecht University

ORCID:

https://orcid.org/0000-0002-7017-6031

Van Stappen, Jeroen. F.

Researcher

Utrecht University | Ghent University

ORCID:

https://orcid.org/0000-0003-2191-2888

Wolterbeek, Timotheus K.T.

Researcher

Utrecht University

ORCID:

https://orcid.org/0000-0002-4299-6585

Hangx, Suzanne J.T.

Supervisor

Utrecht University

ORCID:

https://orcid.org/0000-0003-2253-3273

Author identifier (Scopus):

25951270800

Hangx, Suzanne J.T.

ContactPerson

Utrecht University

ORCID:

https://orcid.org/0000-0003-2253-3273

Author identifier (Scopus):

25951270800

Experimental rock deformation/HPT-Lab (Utrecht University, The Netherlands)

HostingInstitution

Utrecht University


References

https://doi.org/10.1016/j.mtcomm.2020.101881


Citation

Van Stappen, J. F., & Hangx, S. J. T. (2020). Micro-XCT images, grain size distributions and mechanical data used in: "Uniaxial compaction of sand using 4D X-ray tomography: The effect of mineralogy on grain-scale compaction mechanisms.". Utrecht University. https://doi.org/10.24416/UU01-DHYKQ1


Dates

Updated:

2024-07-12T11:08:13


Language

en


Funding References

Funder name: Nederlandse Aardolie Maatschappij (NAM)


Rights

Open - freely retrievable

Creative Commons Attribution 4.0 International Public License


Datacite version

1.0


Geo location(s)

Qz sand from Beaujean quarry near Heerlen, The Netherlands; K-feldspar acquired from Amberger Kaolinwerke as Feldspar FS 900 S; Clay obtained from the Clay Minerals Society as SAz-1, from the Bidahochi Formation in Arizona, USA.