The Role of Iron Tailing Powder in Ultra-High-Strength Concrete Subjected to Elevated Temperatures

Figure 9

Microstructure of CITP15 (a) at room temperature; (b) at 200°C; (c) at 400°C; (d) at 600°C; (e) at 800°C; and (f) the sample CITP30 at 800°C.

(a)

(b)

(c)

(d)

(e)

(f)