NDLI: An image analysis procedure to quantify the air void system of mortar and concrete

Content Provider	Springer Nature Link
Author	Fonseca, P. C. Scherer, G. W.
Copyright Year	2014
Abstract	The entrained air void system in cement paste and concrete directly affects both the fresh-state workability and the freeze-thaw durability of concrete pavements and structures. In order to effectively study the air void system, the volume, spacing, and size distribution of the air bubbles must be quantified. This manuscript describes an inexpensive and effective procedure to quantify the air void system using automatic image analysis. We compare various materials used for sample preparation and recommend a procedure to create more accurate images. We further implement a stereological analysis method in the form of a user-friendly and customizable Matlab script. The script was verified by comparing bulk density measurements between air-entrained and control samples with the air content computed by image analysis. As a result, the user can quantify the air void system in a variety of samples by computing the air content, specific surface, spacing, and size distribution of the bubbles.
Starting Page	3087
Ending Page	3098
Page Count	12
File Format	PDF
ISSN	13595997
Journal	Materials and Structures
Volume Number	48
Issue Number	10
e-ISSN	18716873
Language	English
Publisher	Springer Netherlands
Publisher Date	2014-08-29
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Image analysis Stereology Air voids Air content Bubbles Structural Mechanics Materials Science Theoretical and Applied Mechanics Operating Procedures, Materials Treatment Civil Engineering Building Materials
Content Type	Text
Resource Type	Article
Subject	Building and Construction Mechanics of Materials Materials Science Civil and Structural Engineering

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