High-Tech Concrete Technology Has a Famous Past (IMAGE)

National Institute of Standards and Technology (NIST)

High-Tech Concrete Technology Has a Famous Past

Caption

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.

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NIST

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