Quantitative microstructure analysis of polymer-modified mortars

Jenni, Andreas; Herwegh, Marco; Zurbriggen, R.; Aberle, T.; Holzer, L. (2003). Quantitative microstructure analysis of polymer-modified mortars. Journal of microscopy, 212(2), pp. 186-196. Wiley-Blackwell 10.1046/j.1365-2818.2003.01230.x

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Digital light, fluorescence and electron microscopy in combination with wavelength-dispersive spectroscopy were used to visualize individual polymers, air voids, cement phases and filler minerals in a polymer-modified cementitious tile adhesive. In order to investigate the evolution and processes involved in formation of the mortar microstructure, quantifications of the phase distribution in the mortar were performed including phase-specific imaging and digital image analysis. The required sample preparation techniques and imaging related topics are discussed. As a form of case study, the different techniques were applied to obtain a quantitative characterization of a specific mortar mixture. The results indicate that the mortar fractionates during different stages ranging from the early fresh mortar until the final hardened mortar stage. This induces process-dependent enrichments of the phases at specific locations in the mortar. The approach presented provides important information for a comprehensive understanding of the functionality of polymer-modified mortars.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences
08 Faculty of Science > Institute of Geological Sciences > Tectonics

UniBE Contributor:

Jenni, Andreas and Herwegh, Marco

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

0022-2720

Publisher:

Wiley-Blackwell

Language:

English

Submitter:

Andreas Jenni

Date Deposited:

23 Oct 2015 14:35

Last Modified:

24 Oct 2016 10:36

Publisher DOI:

10.1046/j.1365-2818.2003.01230.x

Uncontrolled Keywords:

Ceramic tile adhesive, Element mapping, Fluorescence Polymer-modified cement mortar, Quantitative microstructure analysis, Staining, mineral, polymer article, chemical model, electron microscopy, fluorescence microscopy, image analysis, microscope image, microscopy, priority journal, quantitative analysis, spectroscopy, structure analysis

BORIS DOI:

10.7892/boris.72227

URI:

https://boris.unibe.ch/id/eprint/72227

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