The durability performance of ettringite-based binders in terms of chloride penetration and corrosion is presented. Calcium sulfoalumiante cement based binders result in an increased corrosion rate compared to other ettringite-based binders. The abundance of ettringite results in a decrease in chloride binding due to the reduced ability of Friedel’s salt to form. The newly developed ettringite-based binder results in a corrosion performance similar to Portland cement.