DCI® corrosion inhibitor

The reference brand for corrosion protection admixtures since 1978

About Steel-Reinforced concrete

Steel-reinforced concrete is literally responsible for every city skyline in existence, but chlorides in the environment will eventually corrode and degrade the steel inside it. This causes the steel rebar or mesh inside concrete to corrode, severely diminishing the strength of a concrete structure. Before the steel corrodes, however, it also expands up to four times, causing cracks, stains, crazing and spalling.

What is DCI®?

DCI® is a corrosion inhibitor containing calcium nitrite, which deposits on the reinforcing steel to create a chemical barrier. This barrier delays the onset of corrosion, and prevents corrosion from accelerating once it starts. In sufficient quantity, DCI® will maintain an active corrosion-controlling system within the concrete matrix throughout the lifetime of the structure.

Why choose DCI® corrosion inhibitors?

A category creator at launch, DCI® is now the most validated corrosion inhibiting admixture in use. We offer reams of advice and support on the correct way to add DCI® or DCI® S to a concrete mix. In project after project, DCI® has been shown to work exactly as intended, protecting from corrosion and extending the service life of structures around the world. For more information on how to add DCI® or DCI® S to a building project, contact Chryso today.

Corrosion Prevention

Durability

Extended Service Life

Products

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.

DCI-S

DCI-S corrosion inhibitor chemically inhibits the corrosive action of Chlorides on reinforcing steel and  prestressed strands in concrete. It has been formulated to provide set time characteristics similar to untreated concrete at 22°C. DCI-S is a liquid added to concrete during the batching process. DCI-S corrosion inhibitor is a system containing Calcium Nitrite which interacts with the embedded steel in concrete to prevent salt attack. 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-S maintains an active corrosion-controlling system within the concrete matrix. DCI-S complies with AS 1478.1-2000, Type SN.