DCI® N

DCI® N corrosion inhibitor chemically inhibits the corrosive action of chlorides on reinforcing steel and prestressed strands in concrete. DCI® N has been specifically formulated to provide corrosion protection performance while still maintaining equivalent plastic and hardened properties of similar untreated concretes. DCI® N is a liquid added to concrete during the batching process. DCI® N contains a minimum of 30% w/w of calcium nitrite.

By chemically reacting with the reinforcing, a barrier is formed which prevents chloride penetration. Corrosion initiation is delayed, and corrosion rates are kept under control. Once corrosion has been inhibited, physical disruption of the concrete due to rust formation will not occur. When added to concrete in sufficient quantity as determined by the  anticipated chloride ion content of the concrete over the design life of the structure, DCI® N maintains an active corrosion-controlling system within the concrete matrix. DCI® N complies with AS 1478.1-2000, Type SN.