Utilizing Coal Bottom Ash from Thermal Power Plants in Vietnam as Partial Replacement of Aggregates in Concrete Pavement

Figure 12

SEM micrograph of the hydrated bottom ash-calcium hydroxide mixture at 3, 7, and 14 days curing, respectively, for An Khanh CBA concrete (a, c, e) and Cao Ngan CBA concrete (b, d, f).

(a)

(b)

(c)

(d)

(e)

(f)