micro-XRCT data sets of a stone mastic asphalt drill core before and after a uniaxial compression test (sample 2): sample 2-1doi:10.18419/darus-1641DaRUS2021-04-302Ruf, Matthias; Teutsch, Tim; Alber, Stefan; Steeb, Holger; Ressel, Wolfram, 2021, "micro-XRCT data sets of a stone mastic asphalt drill core before and after a uniaxial compression test (sample 2): sample 2-1", https://doi.org/10.18419/darus-1641, DaRUS, V2, UNF:6:mp7Zp2YBUbrj5d48PuMJ4w== [fileUNF]micro-XRCT data sets of a stone mastic asphalt drill core before and after a uniaxial compression test (sample 2): sample 2-1doi:10.18419/darus-1641Ruf, MatthiasTeutsch, TimAlber, StefanSteeb, HolgerRessel, WolframRuf, MatthiasTeutsch, TimSteeb, HolgerUniversity of Stuttgart, Institute of Applied Mechanics (CE) - Chair for Continuum-MechanicsUniversity of Stuttgart - Cluster of Excellence EXC 2075 "SimTech"University of Stuttgart, Institute for Road and Transport Science2020University of Stuttgart, Institute of Applied Mechanics (CE), Stuttgart, 70569, GermanyRE 1620/4DaRUSSteeb, Holgermicro-XRCT data sets of a stone mastic asphalt drill core before and after a uniaxial compression test (sample 2)The drill core was part of a large drill core (sample 2), taken from a test track by the "Intstitut of Highway Engineering (ISAC)" at the RWTH Aachen and subsequently cut into three parts (sample 2-1 to 2-3) by the "Institute of Urban and Pavement Engineering" at the Technische Universität Dresden (TUD) for further analysis.Computer and Information ScienceEarth and Environmental SciencesEngineeringStone Mastic AsphaltMicro X-ray Computed Tomography (micro-XRCT)Porous MediaThis data set contains two micro X-ray Computed Tomography (micro-XRCT) data sets resulting from region of interest scans (diameter 58.32 mm, height 46.06 mm) of the center region of a stone mastic asphalt (SMA) drill core. The drill core was scanned with identical scanner settings before ("reconstructed_20200429_01.tar.gz") and after ("reconstructed_20201015_01.tar.gz") a uniaxial compression test.
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The sample had a diameter of 75.12 mm and a height of 70.93 mm before, respectively a diameter of 78.05 mm and a height of 67.11 mm after the compression test (measured by caliper). The asphalt mixture is a stone mastic asphalt with a nominal maximum aggregate size (NMAS) of 11 mm (SMA 11 S). It contains diabase aggregates and a 50/70 bitumen binder. The material is described in detail by <a href="https://doi.org/10.1007/s11709-017-0407-9">Hu et al. (2017)</a>.<br><br>
The compression test was performed by controlling the load with the following procedure:<br>
<ul>
<li> Starting the measurement at a contact load of 10 N.</li>
<li> Increasing the load to 500 N (stress around 0.11 N/mm<sup>2</sup>) with a speed of 100 mm/min.</li>
<li> Holding the load at 500 N (stress around 0.11 N/mm<sup>2</sup>) for 600 s.</li>
<li> Increasing the load by another 500 N (stress around 0.11 N/mm<sup>2</sup>) with a speed of 100 mm/min and holding it for 600 s.</li>
<li> Repeating the procedure of adding load in 500 N (stress around 0.11 N/mm<sup>2</sup>) increments, until the maximum load of 5000 N (stress around 1.13 N/mm<sup>2</sup>) is reached and held for 600 s.</li>
</ul>
During the test, time (s), distance (mm), and load (N) were logged at regular intervals and can be found in "2_1_compression_test_data.csv". A visualization of the test procedure is shown in "test_procedure.pdf".<br><br>
NOTE: It turned out that the specimen top and bottom surfaces were not exactly plane-parallel which led to an non-uniform transmission of the load, which lead to a first full-surface contact between the load plate and top surface of the specimen when the 1500 N load increment was reached.Image dataThe material is a stone mastic asphalt with a nominal maximum aggregate size of 11 mm (SMA 11 S). It contains diabase aggregates and a 50/70 bitumen binder. The material is described in detail by <a href="https://doi.org/10.1007/s11709-017-0407-9">Hu et al. (2017)</a>.Ruf, M., Teutsch, T., Alber, S., Ressel, W., & Steeb, H. (2021). micro-XRCT data sets of a stone mastic asphalt drill core before and after a uniaxial compression test (sample 2): sample 2-2. DaRUS. <a href="https://doi.org/10.18419/darus-1833">https://doi.org/10.18419/darus-1833</a><br>Ruf, M., Teutsch, T., Alber, S., Ressel, W., & Steeb, H. (2021). micro-XRCT data sets of a stone mastic asphalt drill core before and after a uniaxial compression test (sample 2): sample 2-3. DaRUS. <a href="https://doi.org/10.18419/darus-1834">https://doi.org/10.18419/darus-1834</a>Ruf, M., & Steeb, H. (2020). An open, modular, and flexible micro X-ray computed tomography system for research. <em>Review of Scientific Instruments</em>, 91(11), 113102. <a href="https://doi.org/10.1063/5.0019541">https://doi.org/10.1063/5.0019541</a>Hu, J., Lui, P., & Steinauer, B. (2017). A study on fatigue damage of asphalt mixture under different compaction using 3D-microstructural characteristics. <em>Frontiers of Structural and Civil Engineering</em>, 11, 329-337, <a href="https://doi.org/10.1007/s11709-017-0407-9">https://doi.org/10.1007/s11709-017-0407-9</a>2_1_compression_test_data.tab2997485text/tab-separated-valuesUNF:6:mp7Zp2YBUbrj5d48PuMJ4w==time[s].0.02997.47002950000020.06031.080137299748.01730.59898172597042997.470120568053UNF:6:PpwRz/ePaCwz+hIaOEHzJQ==displacement[mm]2.49540427231540551.1166280005578634.7839268.4E-5.0.0299748.02.389073UNF:6:4d1vC0cQ1UlFG67IlQasAA==load[N].299748.01434.69409089472297.852499.3000495000.252723.9229420947360.0UNF:6:jaO2LBmnbNfAW7kGCFMhyw==stress[N/mm^2]0.00.001771204.0.5639198190.6146017290139645299748.01.1282119060.3237116055016305UNF:6:JJ4/dxEPlIl2XEM//lcsWA==strain[%]299748.03.518122476124891.5742675885489028.3.3682123221.18427E-46.7445735230.0UNF:6:Xk5bMR10Z42TwPm0hYT0CA==reconstructed_20200429_01.tar.gzReconstructed micro-XRCT data set before the uniaxial compression test in 16 bit *.tif file format. 1944x1944x1425 voxels with the uniform voxel size of 30.0 µm.application/x-gzipreconstructed_20201015_01.tar.gzReconstructed micro-XRCT data set after the uniaxial compression test in 16 bit *.tif file format. 1944x1944x1425 voxels with the uniform voxel size of 30.0 µm.application/x-gziptest_procedure.pdfVisualization of the compression test procedure, showing the displacement-time-graph and the load-time-graph.application/pdf