Roman Concrete Microscope (IMAGE)

University of Utah

Roman Concrete Microscope

Caption

This microscopic image shows the lumpy calcium-aluminum-silicate-hydrate (C-A-S-H) binder material that forms when volcanic ash, lime, and seawater mix. Platy crystals of Al-tobermorite have grown amongst the C-A-S-H cementing matrix.

Credit

Courtesy Marie Jackson.

Usage Restrictions

Credit Marie Jackson

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