The polarizing microscope: A tool of interest for investigation on concrete; application to carbonation

✍ Scribed by L. Curtil; J. Gielly; M. Murat

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 538 KB
• Volume: 23
• Category: Article
• ISSN: 0008-8846
• DOI: 10.1016/0008-8846(93)90098-t

✦ Synopsis

Polarizing microscope is the technique the more commonly used by geologists whereas it is not so much used in concrete or mortar studies. But nevertheless this technique can be very interesting in petrographic field for the determination of aggregates (mineralogy, state of alt6ration, regularity of composition, size of grains...) and for cement paste investigation. This paper treats the study of the carbonation of concrete by polarizing microscope.

RESUME

Le microscope polarisant est l'outil le plus utilis6 par les g6ologues alors qu'il ne l'est ~u6re dans l'6tude des b6tons et mortiers. Or son utilisation peut se r6v61er fort instructive quant ~ la nature des granulats (min6ralogie, 6tat d'alt6ration, r6gularit6 de composition ...) mais 6galement des renseignements peuvent 6tre obtenus sur la pate de ciment. L'objet de cet article est l'6tude de la carbonatation de la pgtte de ciment d'un b6ton au microscope polarisant.