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

Figure 8

Microstructure of concrete: (a) sample CIP0, (b) CIP15, and (c) CIP30 with magnification of ×1,000; (d) sample CIP0, (e) CIP15, and (f) CIP30 with magnification of ×5,000.

(a)

(b)

(c)

(d)

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(f)