A novel system for in-situ observations of early hydration reactions in wet conditions in conventional SEM

Journal Article · Mon Jan 15 00:00:00 EST 2007 · Cement and Concrete Research

DOI:https://doi.org/10.1016/j.cemconres.2006.09.014· OSTI ID:20871580

Katz, A ^[1]; Bentur, A ^[1]; Kovler, K ^[1]

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1. National Building Research Institute, Faculty of Civil and Environmental Engineering, Technion - Israel Institute of Technology, Haifa (Israel)

A novel system enabling wet microscopy in conventional SEM is described and its performance for in-situ study of hydration reactions is demonstrated. The technology is based on a sealed specimen capsule, which is protected from the microscope vacuum by an electron-transparent partition membrane. Thus, the wet sample can be placed and observed in a 'conventional' SEM without the need for drying or employing environmental SEM. Early hydration reactions of gypsum and cement systems were followed during the first 24 h.

• OSTI ID: 20871580
• Journal Information: Cement and Concrete Research, Vol. 37, Issue 1; Other Information: DOI: 10.1016/j.cemconres.2006.09.014; PII: S0008-8846(06)00234-1; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0008-8846
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CAPSULES
CEMENTS
DRYING
ELECTRONS
GYPSUM
HYDRATION
MEMBRANES
MICROSCOPES
PERFORMANCE
SCANNING ELECTRON MICROSCOPY