• Microstructural features of a...

Treffer: Microstructural features of a mortar as seen by computed microtomography

Title:
Microstructural features of a mortar as seen by computed microtomography
Authors:
DIAMOND, Sidney, LANDIS, Eric
Source:
Materials and structures. 40(9):989-993
Publisher Information:
Dordrecht: Springer, 2007.
Publication Year:
2007
Physical Description:
print, 14 ref
Original Material:
INIST-CNRS
Subject Terms:
Civil engineering, Génie civil, Sciences exactes et technologie, Exact sciences and technology, Sciences appliquees, Applied sciences, Batiment. Travaux publics, Buildings. Public works, Généralités, General, Mesures. Techniques expérimentales, Measurements. Technique of testing, Matériaux, Materials, Bétons. Mortiers. Coulis, Concretes. Mortars. Grouts, Généralités (composition, classification, performances, normes, brevets, etc.), General (composition, classification, performance, standards, patents, etc.), Etude comparative, Comparative study, Estudio comparativo, Matériau construction, Construction materials, Material construcción, Microscopie électronique balayage, Scanning electron microscopy, Microscopía electrónica barrido, Microstructure, Microestructura, Mortier, Mortar, Mortero, Tomographie, Tomography, Tomografía, Traitement informatique, Computerized processing, Tratamiento informático
Document Type:
Fachzeitschrift Article
File Description:
text
Language:
English
Author Affiliations:
School of Civil Engineering, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907, United States
Department of Civil and Environmental Engineering, University of Maine, 5711 Boardman Hall, Orono, ME 04469-5711, United States
ISSN:
1359-5997
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=19175429
Rights:
Copyright 2008 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Building. Public works. Transport. Civil engineering
Accession Number:
edscal.19175429
Database:
PASCAL Archive

Weitere Informationen

While low resolution limits the use of computed microtomography for microstructural investigation, the method has a unique advantage in that no specimen preparation is required; the images produced are thus entirely free of specimen preparation artifacts. In the present communication we report examination of the microstructure of a w:c 0.6 mortar, with the tomographic information resolved on a set of more than 500 successive planar images each 1.2 μm apart. Selected images are compared with backscatter SEM images taken from similar materials at comparable magnifications. The same features are observed, including sand grains, air voids, residual cement grains, hydrated cement paste components, and hollow-shell pores. The patchy microstructure of different areas of hardened cement paste, previously reported for mortars and concretes in backscatter SEM, is clearly also present in images derived from computed microtomography, and are not artifacts of SEM specimen preparation.