Experimental Study and Microscopic Analysis on Frost Resistance of Iron Ore Tailings Recycled Aggregate Concrete

Figure 14

Microscopic damage characteristic diagram of samples (IOT replacement rate is 0%) under 200 F-T cycles: (a) RAC0-IOT0; (b) RAC3-IOT0; (c) RAC5-IOT0; (d) RAC7-IOT0.

(a)

(b)

(c)

(d)