Damage identification in cement paste amended with carbon nanotubes
Abstract
Cement-based composites have been used as reliable materials in building and civil engineering infrastructure for many decades. Although there are several advantages, some drawbacks such as premature cracking may be problematic for sensitive applications such as those found in nuclear power plants or associated waste storage facilities. In this study, acoustic emission monitoring was employed to detect stress waves associated with damage progression during uniaxial compressive loading. Acoustic emission data resulting from loading of plain cement paste prisms and cement paste prisms amended with carbon nanotubes are compared. Unsupervised pattern recognition is employed to categorize the data. Results indicate that increased acoustic emission activity was recorded for the plain cement paste prisms when compared to prisms amended with carbon nanotubes.
- Publication:
-
44th Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 37
- Pub Date:
- April 2018
- DOI:
- 10.1063/1.5031529
- Bibcode:
- 2018AIPC.1949c0006S