Data · dataset · 2026
In-situ Imaging of Crack Propagation in Sulfate-Attacked Cement Paste: X-CT Time-Lapse Microscopy
Listed in ScienceDB
In-situ dynamic characterization of crack evolution is critical for elucidating fracture origination and propagation mechanisms, yet remains experimentally challenging across any material systems.
Description
Herein, we propose an X-ray computed tomography (X-CT) method enabling continuous time-lapse crack imaging. For sulfate attack-induced cracking progression in hardened cement paste, the temporal progression was converted into spatial coordinates along the sulfate-penetration direction via controlled sulfate diffusion kinetics, establishing a microscale "time-lapse microscope".
Real-time visualization reveals ionic penetration and crack pathways through multiphase hydrates composites and complete cracks network development from nucleation to percolation. Greyscale analysis confirms the formation of sulfate-filling low-density (LD) hydrates, which generates interconnected networks serving as preferential fracture channels. The crack propagation rate is quantified for the first time, 36 ~ 77 μm/day.
Read the rest (1 more)
This platform pioneers continuous spatiotemporal analysis of fracture dynamics and has scalability for the study of crack propagation of structural materials.
Links
Where it is published
- DOI doi.org/10.57760/sciencedb.30815 ↗
DOI / persistent id · from scidb cn
Catalogue records · 1
- OAI-PMH record scidb.cn/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=10.57760%2… ↗
metadata API · from scidb cn
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Computed tomography 75% · Imaging 75% · Microscopy 75%
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ScienceDB | 10.57760/sciencedb.30815 | 9 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:engineering | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:humanities | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[field].local:field:social-science | mapping · scidb cn | connector:scidb_cn@1.0.0 | |
| concepts[modality].local:modality:ct | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:imaging | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[modality].local:modality:microscopy | enrichment · scidb cn | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/description |
| license | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/rights |
| publication_date | source · scidb cn | connector:scidb_cn@1.0.0 | |
| title | source · scidb cn | connector:scidb_cn@1.0.0 | /metadata/dc/title |