Performance Analysis of a Recycled Concrete Interfacial Transition Zone in a Rapid Carbonization Environment

Figure 9

Effect of carbonization on the microhardness of the LJ-XJ interface of recycled concrete: (a) C30 (LJ-XJ); (b) C40 (LJ-XJ); (c) C50 (LJ-XJ).

(a)

(b)

(c)