Image analysis techniques for characterization of pore structure of cement-based materials

Journal Article · Sat Jan 01 04:00:00 EST 1994 · Cement and Concrete Research; (United States)

DOI:https://doi.org/10.1016/0008-8846(94)90004-3· OSTI ID:7020499

Lange, D A ^[1]; Jennings, H M; Shah, S P ^[2]

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1. Univ.of Illinois, Urbana, IL (United States). Dept. of Civil Engineering
2. Northwestern Univ., Evanston, IL (United States). Dept. of Civil Engineering

This paper explores several image analysis techniques that provide insight into the nature of pore structure as observed in backscattered electron images of polished sections. Image analysis techniques used in this study include sizing, two-point correlation, and fractal analyses. The spatial parameters computed by these techniques have potential for relating microstructure to material properties. Specimens include plain cement paste, pastes with silica fume, and mortars. Tests include determination of total porosity, mercury intrusion porosimetry (MIP), compression and flexural testing. The two-parameter fracture model is used to characterize fracture properties. Pore size distribution from MIP is compared to pore size distribution derived from backscattered electron images.

• OSTI ID: 7020499
• Journal Information: Cement and Concrete Research; (United States), Journal Name: Cement and Concrete Research; (United States) Vol. 24:5; ISSN 0008-8846; ISSN CCNRAI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360600* -- Other Materials
BUILDING MATERIALS
CEMENTS
COMPRESSION STRENGTH
FLEXURAL STRENGTH
FRACTURE PROPERTIES
IMAGES
MATERIALS
MEASURING METHODS
MECHANICAL PROPERTIES
MICROSTRUCTURE
MORTARS
PORE STRUCTURE
POROSITY