Durability of VA/E/MMA-Modified Mortars with Nitrite-Type Hydrocalumite

VA/E/MMA 터폴리머 분말수지와 아질산형 hydrocalumite를 병용한 폴리머 시멘트 모르타르의 내구성

In this study, VA/E/MMA-modified mortars with nitrite-type hydrocalumite were prepared with various calumite contents and polymer binder-ratios, and tested for chloride ion penetration, carbonation and drying shrinkage. As a result, the chloride ion penetration and carbonation depths were somewhat increased with calumite contents, but those were remarkably decreased depending on the polymer-binder ratios. The 28-d drying shrinkage showed a tendency to increase with polymer-binder ratios and calumite contents. VA/E/MMA-Modified mortars with a calumite of 10 % were dissatisfied with KS requirements. Accordingly, a calumite content of 5 % for the VA/E/MMA-modified mortars with calumite is recommended.