Paste Aggregate Interface: 500x
![Cement paste at 1 day. [Paul Stutzman, NIST]](http://publish.illinois.edu/concretemicroscopylibrary/files/2014/05/45_1d_b.jpg)
Cement paste at 1 day. [Paul Stutzman, NIST]
![Cement paste at 7 days. [Paul Stutzman, NIST]](http://publish.illinois.edu/concretemicroscopylibrary/files/2014/05/45_7d_a.jpg)
Cement paste at 7 days. [Paul Stutzman, NIST]
![Cement paste at 28 days. [Paul Stutzman, NIST]](http://publish.illinois.edu/concretemicroscopylibrary/files/2014/05/45_28d_b.jpg)
Cement paste at 28 days. [Paul Stutzman, NIST]
Magnification Progression Series: 500x
Concrete Microscopy Library
Cement paste at 1 day. [Paul Stutzman, NIST]
Cement paste at 7 days. [Paul Stutzman, NIST]
Cement paste at 28 days. [Paul Stutzman, NIST]