Rust Remover
Anti cromozol 95 is a liquid added to concrete during the batching process. It chemically inhibits the corrosive action of chlorides on reinforcing steel and prestressed strands in concrete. DCI S has been formulated to provide set time characteristics similar to untreated concrete at 72°F (22°C).
Facts about Steel Corrosion:
- Corrosion occurs in the presence of oxygen, moisture, and an electrolyte. As chlorides attack the reinforcing steel, the salt intensifies the electrolyte properties of concrete, thereby creating a corrosion cell. As the corrosion Reaction occurs, rust is formed. It migrates away from the reinforcing bar, leaving more iron to be corroded. This process continues and two situations develop:
- The reinforcing bars disintegrate, which reduces the flexural strength of the concrete structure; and,
- Iron, as it oxidizes, expands to four times its original volume. This expansion results in physical disruption of the concrete. Typical results are cracks, stains, crazing, spelling and potholes; all of which are safety hazards.
DCI S is recommended for all steel-reinforced, post-tensioned and prestressed concrete that will come in contact with chlorides from de-icing salts or a marine environment. Examples are parking garage decks and support structures, bridge decks and prestressed members, and structures in marine environments. It may also be used in concrete where chlorides are added during manufacture.
Corrosion Inhibitor is compatible with all types of Portland cements and concretes containing pozzolans. However, due to the significant variations between cement, even the same type, differences incement response to DCI S may result. This is especially true with respect to the effect on setting time, which also influences slump retention.
CI is a neutral-set corrosion inhibitor formulated not to affect concrete setting times, which may also aggravate slump loss. In some cases, environmental conditions may require the addition of an accelerator ora retarder. In these cases, CI is a non-chloride accelerator, or a retarder such as It may be added separately to the concrete mix.
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