PERFORMANCE OF RUST-INHIBITING PASTES AND REPAIR MORTARS WITH CALCIUM-BASED RUST-INHIBITOR

Abstract

This paper examined the performance of rust-inhibiting pastes and repair mortars with a calcium-based rust-inhibitor. Polymer-modified pastes and mortars with the rust-inhibitor are prepared as rust-inhibiting pastes and repair mortars. A rebar is treated by the pastes and embedded in the mortars, or a half portion of a rebar embedded in cement mortar is treated and embedded same way. These specimens are cured, and subjected to corrosion test. The corrosion rates of the rebars are evaluated after the test. In conclusion, the paste and mortar with the calcium-based rust-inhibitor may be used as repair materials for reducing repair-induced corrosion.