Laboratory Assessment of Select Methods of Corrosion Control and Repair in Reinforced Concrete Bridges

Table 2

Table of treatments used for each specimen*.

Specimen; number	Type of treatments	General description	Referred to as
17 and 18	Control	No treatment	Control
19 and 20	Thermal sprayed galvanic anode with coating applied on top surface of specimen	Humectant activated thermal sprayed zinc with epoxy/polyurethane coating	TSZ w/EP-C
21 and 22	Thermal sprayed galvanic anode applied on top surface of specimen	Humectant activated thermal sprayed zinc	TSZ
23 and 24	Embedded galvanic anode placed within patch area	Cylindrical-shaped zinc anode	EA-A
25 and 26	Embedded galvanic anode placed within patch area with acrylic coating applied on top surface of specimen	Cylindrical-shaped zinc anode with acrylic coating	EA-A w/A-C
27 and 28	Embedded galvanic anode placed within patch area	Box-shaped zinc anode	EA-B
29 and 30	Epoxy repair mortar as a patch material	Epoxy resins and polyamino amine adducts	EM

∗Specimens 17 through 28 included a conventional cement-based patch material in addition to the treatments shown. Specimens 29 and 30 included an epoxy patch material. All patching and treatments were applied after 3 months of exposure to accelerated corrosion.