Bond Performance of Carbon Fiber-Reinforced Polymer Bar with Dual Functions of Reinforcement and Cathodic Protection for Reinforced Concrete Structures

Figure 13

Real pictures of bonded areas before and after spraying phenolphthalein solution. (a) I-0-RF. (b) I-5-4M. (c) I-20-4M. (d) I-50-4M. (e) I-100-4M.

(a)

(b)

(c)

(d)

(e)