Stone Mastic Asphalt Drill Core Micro-XRCT Scans Before and After Compression Test

Matthias Ruf from the University of Stuttgart provides two micro X-ray Computed Tomography (micro-XRCT) scans of a stone mastic asphalt (SMA) drill core's central region. The scans capture the same 58.32 mm diameter by 46.06 mm high region before and after a uniaxial compression test, which applied load in 500 N increments up to 5000 N. The dataset includes a CSV file logging time, distance, and load during the test, and a PDF visualizing the procedure.

Use Cases

• Analyze 3D microstructural damage in asphalt based on pre- and post-compression XRCT scans.
• Study aggregate-binder interface failure mechanisms based on high-resolution tomography data.
• Validate computational models of asphalt deformation using logged time, distance, and load data from the compression test.
• Investigate the effect of non-planar specimen surfaces on load distribution and failure patterns.

Strengths

• Provides paired, high-resolution 3D scans of the exact same sample region before and after mechanical testing.
• Compression test procedure is documented in detail, including specific load steps (500 N increments) and hold times (600 s).
• Sample material composition is specified (SMA 11 S with diabase aggregates and 50/70 bitumen binder) and linked to a peer-reviewed publication.

Limitations

• Description metadata is limited; actual data quality, file formats, and scan resolution require manual inspection after download.
• Row count and total data size are unknown, which may limit suitability assessment for large-scale ML tasks.
• Column-level documentation for the accompanying CSV file is absent; field semantics must be inferred.

Provenance

Source

University of Stuttgart

Collection Method

Micro X-ray Computed Tomography (micro-XRCT) scanning before and after a controlled uniaxial compression test.

Time Range

Scans dated April and October 2020.