Applications of Steel Slag Powder and Steel Slag Aggregate in Ultra-High Performance Concrete

Figure 6

(a) SEM morphology of hardened paste PS3 at 28 d. (b) SEM morphology of hardened paste PS4 at 28 d. (c) EDX spectrum of position 1. (d) EDX spectrum of position 2.

(a)

(b)

(c)

(d)