Mechanical Performance and Microstructure of Ultra-High-Performance Concrete Modified by Calcium Sulfoaluminate Cement

Figure 7

Microstructural features of UHPC with 10% CSA additions at 7 d. (a) Microstructure of bulk matrix. (b) Spot analysis on Spot “1”. (c) Microstructure at the aggregate-cement interface.

(a)

(b)

(c)