This example includes a curated excerpt derived from:

  3D Printing Concrete Mix Design Open Dataset (v0.3)
  Jianhao Gao, Zijie Wang, Chaofeng Wang (University of Florida)
  Zenodo — https://doi.org/10.5281/zenodo.6828947

Licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0):
  https://creativecommons.org/licenses/by/4.0/

Changes made: a 10-row excerpt (printable Portland-cement mixes from several primary studies) was derived
from the standardized dataset by reading its fresh-rheology, water/binder, and compressive-strength fields
and re-formatting them into the Open3DCP flat schema; static and dynamic yield stress were converted
kPa -> Pa. The source records constituents on a ratio-to-binder basis (binder = 1) with no absolute kg/m3
binder content, so constituent mass-% of the total mix is not formed (kg/m3 is not recoverable); this is
documented in each row's provenance note. Underlying values are unchanged; the source table is not
redistributed (download it from the DOI). See SOURCE.md and build/extract.py.