SELF-HEALING COATING FOR REINFORCEMENT STEEL

摘要

A self-healing coating for reinforcing steel embedded in concrete includes emulsion derived microcapsules having a healing agent and adapted for dispersion through a liquid coating medium for application on a structural steel surface to form a coating for corrosion prevention. The microcapsule particles are dispersed in the coating medium for being disposed on the surface and are configured to rupture and release the healing agent onto the surface in response to a compromise of the coating, such as being dropped or dragged on a construction site. The self-healing agent, such as Tung oil, complements the protective properties of the coating medium by flowing into regions where the coating medium has been scraped off, flaked off, or otherwise undergone compromise. Alternatively, post-installation corrosive influences, such as rust and oxidation, can also cause rupture of the particles to abate corrosion in the concrete-encased steel members.

主权项

1. A self-healing coating for reinforcing steel embedded in concrete, comprising:
emulsion derived microcapsules having a healing agent disposed in particles adapted for dispersion through a liquid medium; a coating defined by the liquid medium adapted to be disposed on a surface to form a coating for corrosion prevention; the particles dispersed in the coating for being disposed on the surface and configured to rupture and release the healing agent onto the surface in response to a compromise of the coating.