micro-XRCT data set of Carrara marble with artificially created crack network: fast cooling down from 500°C

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Ruf, Matthias; Lee, Dongwon; Steeb, Holger, 2025, "micro-XRCT data set of Carrara marble with artificially created crack network: fast cooling down from 500°C", https://doi.org/10.18419/DARUS-2977, DaRUS, V1

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Description	micro-XRCT data set (projection and reconstructed images) of a Carrara marble core with a diameter of 5 mm. The sample was extracted with a water-cooled diamond drill from a bigger sample with a diameter of 30 mm and a length of 80 mm, which was previously subjected to the following thermal treatment to initiate cracks: Starting at room temperature (20°C), the sample was heated up at a rate of 3 K/min to 500°C. After a holding time of 2 hours at this temperature, the sample was subsequently quenched in water at room temperature (20°C). Additionally, a segmentation result, into solid and crack regions, is provided using the U-Net model based on the code provided by Lee et al. (2021, 2022). Note that the segmentation result significantly overestimates the crack volume as described and discussed in detail in Lee et al. (2022) and Ruf et al. (2025). A way to tackle this problem is shown in the related publication Ruf et al. (2025).
Subject	Computer and Information Science; Earth and Environmental Sciences; Engineering
Keyword	Carrara Marble, Micro X-Ray Computed Tomography, Micro-XRCT, X-Ray Microtomography, Cracks, Fracture, Rock Mechanics, Thermal Shock, Porous Media
Related Publication	Is Cited By: Ruf, M., Khristenko, U., Lee, D., Steeb, H., & Wohlmut, B. (2025). Towards a surrogate material model for thermally fractured Carrara marble. International Journal for Numerical and Analytical Methods in Geomechanics, to be submitted.
Data Generation	Experiment
License/Data Use Agreement	CC BY 4.0

	1 to 3 of 3 Files	Download
	binarized_result_U-Net.tar.gz Gzip Archive - 292.0 MB Published Oct 30, 2025 15 Downloads MD5: d9bef158aa03934a8487776af9a867fc Binarization of "reconstructed.tar.gz" showing the extracted crack network in 8 bit *.tif file format. 2940x2940x2141 voxels with uniform voxel size of 2.0 µm. Binarization was achieved using the published code, "Fracture network segmentation," available at https://doi.org/10.18419/darus-1847.	Access File File Access Public Download Options Gzip Archive Download Metadata Data File Citation Download EndNote XML Download RIS Download BibTeX
	projections.tar.gz Gzip Archive - 17.3 GB Published Oct 30, 2025 4 Downloads MD5: 59747bae51f2832e020ddf0706d75160 Projection images (360 deg, angle increment 0.2 deg), dark image (di) and open beam image (ob) in 16 bit *.tif file format. (Internal ID: "20220601_01/projections")	Access File File Access Public Download Options Gzip Archive Download Metadata Data File Citation Download EndNote XML Download RIS Download BibTeX
	reconstructed.tar.gz Gzip Archive - 25.4 GB Published Oct 30, 2025 6 Downloads MD5: dd4ff7991cab38e0a58d5b0e8c4ceea6 Reconstructed micro-XRCT data set in 16 bit *.tif file format. 2940x2940x2141 voxels with the uniform voxel size of 2.0 µm. (Internal ID: "20220601_01/reconstructed")	Access File File Access Public Download Options Gzip Archive Download Metadata Data File Citation Download EndNote XML Download RIS Download BibTeX

Citation Metadata

Persistent Identifier	doi:10.18419/DARUS-2977
Publication Date	2025-10-30
Title	micro-XRCT data set of Carrara marble with artificially created crack network: fast cooling down from 500°C
Author	https://ror.org/04vnq7t770000-0003-0299-5921 https://ror.org/04vnq7t770000-0002-5359-7803 https://ror.org/04vnq7t770000-0001-7602-4920
Point of Contact	Use email button above to contact. Steeb, Holger (University of Stuttgart, Institute of Applied Mechanics (CE) & SimTech)
Description	micro-XRCT data set (projection and reconstructed images) of a Carrara marble core with a diameter of 5 mm. The sample was extracted with a water-cooled diamond drill from a bigger sample with a diameter of 30 mm and a length of 80 mm, which was previously subjected to the following thermal treatment to initiate cracks: Starting at room temperature (20°C), the sample was heated up at a rate of 3 K/min to 500°C. After a holding time of 2 hours at this temperature, the sample was subsequently quenched in water at room temperature (20°C). Additionally, a segmentation result, into solid and crack regions, is provided using the U-Net model based on the code provided by Lee et al. (2021, 2022). Note that the segmentation result significantly overestimates the crack volume as described and discussed in detail in Lee et al. (2022) and Ruf et al. (2025). A way to tackle this problem is shown in the related publication Ruf et al. (2025).
Subject	Computer and Information Science; Earth and Environmental Sciences; Engineering
Keyword	Carrara Marble http://www.wikidata.org/entity/Q40088 (Wikidata) Micro X-Ray Computed Tomography Micro-XRCT X-Ray Microtomography http://www.wikidata.org/entity/Q3042540 (Wikidata) Cracks Fracture http://www.wikidata.org/entity/Q2307625 (Wikidata) Rock Mechanics http://www.wikidata.org/entity/Q1191291 (Wikidata) Thermal Shock http://www.wikidata.org/entity/Q960836 (Wikidata) Porous Media https://doi.org/10.29172/7656e510-f579-4768-9a96-51bb544218eb (PhySH)
Topic Classification	Engineering Sciences (DFGFO) https://w3id.org/dfgfo/2024/4 Computer Science (DFGFO) https://w3id.org/dfgfo/2024/443
Related Publication	Is Cited By: Ruf, M., Khristenko, U., Lee, D., Steeb, H., & Wohlmut, B. (2025). Towards a surrogate material model for thermally fractured Carrara marble. International Journal for Numerical and Analytical Methods in Geomechanics, to be submitted. Is Supplement To: Ruf, M., & Steeb, H. (2022). Effects of thermal treatment on acoustic waves in Carrara marble. International Journal of Rock Mechanics and Mining Sciences, 159, 105205. doi 10.1016/j.ijrmms.2022.105205 https://doi.org/10.1016/j.ijrmms.2022.105205 Is Supplement To: Lee, D., Karadimitriou, N., Ruf, M., & Steeb, H. (2022). Detecting micro fractures: a comprehensive comparison of conventional and machine-learning-based segmentation methods. Solid Earth, 13, 1475-1494. doi 10.5194/se-13-1475-2022 https://doi.org/10.5194/se-13-1475-2022
Language	English
Producer	Institute of Applied Mechanics (CE) - Chair for Continuum-Mechanics (University of Stuttgart) (MIB) https://www.mib.uni-stuttgart.de/en/chair2/ Cluster of Exellence SimTech (University of Stuttgart) (SimTech) https://www.simtech.uni-stuttgart.de/
Production Date	2022-05-24
Production Location	University of Stuttgart, Institute of Applied Mechanics (CE), Stuttgart, 70569, Germany
Contributor	Data Collector: Ruf, Matthias Rights Holder: Steeb, Holger
Funding Information	DFG: STE 969/13-1 - 357361983 DFG: EXC 2075 - 390740016 DFG: SFB 1313 ‐ 327154368
Data Type	Image data
Related Dataset	Ruf, M., & Steeb, H. (2021). Effects of Thermal Treatment on Acoustic Waves in Carrara Marble: Measurement Data. DaRUS. https://doi.org/10.18419/darus-1862; Ruf, M., & Steeb, H. (2020). micro-XRCT data set of Carrara marble with artificially created crack network: fast cooling down from 600°C. DaRUS. https://doi.org/10.18419/darus-682; Ruf, M., & Steeb, H. (2020). micro-XRCT data set of Carrara marble with artificially created crack network: slow cooling down from 600°C. DaRUS. https://doi.org/10.18419/darus-754; Lee, D., Karadimitriou, N., & Steeb, H. (2021). Fracture network segmentation. DaRUS. https://doi.org/10.18419/darus-1847
Other Reference	Ruf, M., & Steeb, H., (2020). An open, modular, and flexible micro X-ray computed tomography system for research. Review of Scientific Instruments, 91(11), 113102. https://doi.org/10.1063/5.0019541

Process Metadata

Processing Methods	micro-XRCT scan of the centered sample (The micro-XRCT data set was acquired using a cone beam micro-XRCT setup.) Segmentation/binarization (Segmentation of reconstructed gray-scale image data set into solid and crack regions using the U-Net model code provided by Lee et al. (2021, 2022). Please note that the crack opening and the resulting crack volume are overestimated several times due to the limited resolution of the XRCT scanner.)
Method Parameters	Geometric magnification [-] : 24.7500 Source detector distance [mm] : 1011.1110 Source object distance [mm] : 40.8530 X-ray tube voltage [kV] : 80 X-ray tube current [µA] : 100 Number of vertical detector pixel [pixel] : 2304 Number of horizontal detector pixel [pixel] : 2940 Detector pixel size [mm] : 0.0495 Resulting voxel size [µm] : 2.0 Detector exposure time [ms] : 3000 Number of projection angles : 1800 Number of projections per angle : 1 Detector bad pixel map version : "Version_ShadoBox6KHS_current_ob" Detector in-plane (YZ-plane) moving pattern in pixel : [(0,0),(23,23),(23,-23),(-23,23),(-23,-23)] Detector in-plane (YZ-plane) positions according to moving pattern : 5 Number of dark images (di) : 1 Number of open beam images (ob) : 1 Position X-axis [mm] : 227.26895 Position Y-axis [mm] : 12.06738 Position Z-axis [mm] : 16.80000 Position x-axis [mm] : 0.53810 Position y-axis [mm] : -0.08602 Position switch detector axis [mm] : 450.00000 Position detector X-axis [mm] : 205.00000 Position detector Y-axis [counts] : 294600 Position detector Z-axis [counts] : 314600
Software	Octopus Reconstruction Version: 8.9.4.9 (Vlassenbroeck, J., Dierick, M., Masschaele, B., Cnudde, V., Van Hoorebeke, L., & Jacobs, P. (2007). Software tools for quantification of X-ray microtomography at the UGCT. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 580(1), 442-445. https://doi.org/10.1016/j.nima.2007.05.073)
Instruments	micro-XRCT system (Ruf, M., & Steeb, H. (2020). An open, modular, and flexible micro X-ray computed tomography system for research. Review of Scientific Instruments, 91(11), 113102. https://doi.org/10.1063/5.0019541) , Version: Calibration: "v2021-08-27" X-ray source , Version: FineTec FORE 180.01C TT Detector , Version: Shad-o-Box 6K HS with CsI scintillator Stage X-Axis , Version: Owis LIMES 170-1000-3HSM Stage Y-Axis , Version: Standa 8MT167-25LS-MEn1 Stage Z-axis , Version: Owis HVM-100-30-HSM-MS Stage x-axis , Version: Newport M423 stage with Nanotec ST2018L0804-A actuator Stage y-axis , Version: Newport M423 stage with Nanotec ST2018L0804-A actuator Stage rotZ-axis , Version: Standa 8MR190-2-28-MEn1 Stage switch detector , Version: ISEL 2111325086/213503 spindle (pitch 2.5 mm) with Vexta PK245M-01B stepper motor Stage detector X-axis , Version: Custom-made: Spindle with 5 mm pitch and Vexta PK245M-01B stepper motor Stage detector Y-axis , Version: Standa 8MTF-75XX-MEn1 Stage detector Z-axis , Version: Standa 8MTF-75XX-MEn1 Multi-axis controller (8 channel) , Version: Standa 8SMC4-ETHERNET Multi-axis controller (12 channel) , Version: Standa 8SMC5-ETHERNET Sample holder , Version: M-BK-1A with 87.5 mm extension (50 mm spacer + 12.5 mm spacer + 25 mm special holder)
Processing Steps	1. Generation ; Methods: micro-XRCT scan of the centered sample ; Software: In-house XRCT scanner controlling software, Octopus Reconstruction ; Output: projections.tar.gz, reconstructed.tar.gz 2. Postprocessing ; Methods: Segmentation/binarization ; Input: reconstructed.tar.gz ; Output: binarized_result_U-Net.tar.gz

Engineering Metadata

Data Generation	Experiment
System or Phase Components	Thermally treated Carrara marble : Cylindrical sample with 5 mm diameter and 10 mm length
Spatial Resolution	X: 2940 points, Y: 2940 points, Z: 2141 points X: (2.0), Y: (2.0), Z: (2.0) µm

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Curation Status History

Status	Date	Assigner
	2025-10-30 10:24:11	Matthias Ruf
In Review by FoKUS	2025-10-29 09:33:58	Dorothea Iglezakis
Waiting for Feedback from Author	2025-10-28 14:08:57	Dorothea Iglezakis
In Review by FoKUS	2025-10-27 14:15:13	Dorothea Iglezakis

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