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

Two micro X-ray Computed Tomography (micro-XRCT) scans of a stone mastic asphalt (SMA) drill core's center region, taken before and after a uniaxial compression test. The dataset includes a CSV file logging time, distance, and load during the test, and was created by Matthias Ruf at the University of Stuttgart. The asphalt mixture contains diabase aggregates and a 50/70 bitumen binder.

Use Cases

• Analyze internal damage and crack propagation in asphalt based on pre- and post-compression 3D scans.
• Correlate mechanical load and displacement data with microstructural changes observed in the tomography images.
• Validate computational models of asphalt behavior using the detailed physical test procedure and material specifications.
• Study aggregate-binder interface failure in stone mastic asphalt based on the described material composition.

Strengths

• Paired before-and-after scans enable direct observation of deformation and damage.
• Detailed test procedure with controlled displacement increments up to 5.24% strain is documented.
• Material composition is specified, including diabase aggregates and a 50/70 bitumen binder.
• Sample physical dimensions before and after compression are provided with precise measurements.

Limitations

• Column-level documentation for the CSV file is absent; field semantics must be inferred after download.
• Row count and total data volume are unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

University of Stuttgart

Collection Method

Micro X-ray Computed Tomography (micro-XRCT) scanning of a laboratory-prepared asphalt drill core before and after a uniaxial compression test.