Synchrotron X-ray nano-tomography datasets of unhydrated and 12, 16 and 20h hydrated tricalcium silicate particles

Reconstructed synchrotron X-ray nano-tomography (PXCT) datasets of unhydrated (0h) and hydrated (12h, 16h, 20 h) tricalcium silicate (C₃S) embedded in epoxy resin.

The C₃S was sieved to a particle size <10 µm. For the hydration, 15 g of C₃S was mixed with 45 g filtered, saturated Ca(OH)_2-solution and 0.10 g superplasticiser at 25 °C. After 12, 16 and 20 h a sample of the suspension was taken, filtered and dried at 60 °C. The sample was then embedded in epoxy resin, which was pulled to thin filaments. These filaments were then cut into 1-2 mm segments. Filaments with a diameter of ~ 100 µm were selected and then scanned using PXCT.

A more detailed description of the specimen preparation can be found in the respective journal paper (DOI: 10.1016/j.cemconres.2022.106769).

[Replace tt with 0, 12, 16 or 20 in the following text.]

The 16-bit datasets are compressed using 7zip and can be opened in VG Studio. However, the datasets are stored as *.tif stack in the subfolder "./[vg-data] tth/volume_1/",  which can be loaded using other programs.

All datasets contain a tth_config.png with a detailed screenshot of the dataset parameters. An overview can be found in this table:

As preview, videos of the image stack are included as *.mp4 (x265) for every volume.