Sealing the surfaces of cracks simply involves applying an adhesive directly over the crack to prevent infiltration of water, chlorides, and other contaminants.

Sealing the surfaces of cracks should only be employed when no significant crack movement is anticipated. This can apply to minor cracks in compression members, or in cracks that occur in prestressed members as a result of fabrication, detensioning, or handling issues.

For sealing cracks at the outer concrete surface, apply a preapproved Type VIII or Type X epoxy that meet the requirements of ,

Epoxies and Adhesives

. Work the epoxy into the crack, then remove any excess epoxy from the surface before it sets.