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Title: Pore structure of lightweight aggregates
Description: X-ray microtomograph (left) shows pores (blue) that remain within lightweight aggregates (LWAs) after water has migrated from the pre-wetted materials during the first day of hydration. In the two-dimensional image (right), the emptied pores are superimposed over the original microstructure (hydrating cement paste is white, sand is light grey, and LWA is dark grey), illustrating the detailed pore structure of LWA particles.

*EL, concrete, aggregate, pore, dry, wet
Subjects (names):
Topics/Categories:
Type: Graphic/scientific data
Source: National Institute of Standards and Technology
Credit Line as it should
appear in print:
NIST image
AV Number: 11EL006
Date Created: 2011
Date Entered: 3/15/2011

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