10.18419/darus-1641Ruf, MatthiasMatthiasRuf0000-0003-0299-5921University of Stuttgart, Institute of Applied Mechanics (CE)Teutsch, TimTimTeutsch0000-0003-3304-9321University of Stuttgart, Institute for Road and Transport ScienceAlber, StefanStefanAlber0000-0002-2097-9784University of Stuttgart, Institute for Road and Transport ScienceSteeb, HolgerHolgerSteeb0000-0001-7602-4920University of Stuttgart, Institute of Applied Mechanics (CE) & SC SimTechRessel, WolframWolframRessel13622556XUniversity of Stuttgart, Institute for Road and Transport Sciencemicro-XRCT data sets of a stone mastic asphalt drill core before and after a uniaxial compression test (sample 2): sample 2-1DaRUS2021Computer and Information ScienceEarth and Environmental SciencesEngineeringStone Mastic AsphaltMicro X-ray Computed Tomography (micro-XRCT)Porous MediaSteeb, HolgerHolgerSteebUniversity of Stuttgart, Institute of Applied Mechanics (CE) & SC SimTechUniversity 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 ScienceRuf, MatthiasMatthiasRufTeutsch, TimTimTeutschSteeb, HolgerHolgerSteeb20202021-06-07Image data1648526573688511377406101494155993text/tab-separated-valuesapplication/x-gzipapplication/x-gzipapplication/pdf2.0CC BY 4.0This 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. <br><br> 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.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.University of Stuttgart, Institute of Applied Mechanics (CE), Stuttgart, 70569, GermanyDeutsche Forschungsgemeinschaft (DFG, German Research Foundation)RE 1620/4