Cortec's patented MCI-2008 ViaCorr organic migrating corrosion inhibitor has been designed to reduce construction time and costs and extend the life of concrete structures. This organic-based concrete admixture comes in powder form, and combines Cortec’s Migratory Corrosion Inhibition Technology with a polycarboxylate based, superplastisising viscosity modifier.
MCI-2008 ViaCorr protects against the harmful effects of corrosion. It has excellent flowability and workability and does not compromise any of the physical properties of concrete. The performance of the product is achieved with special ingredients possessing electrostatic and steric flowability and workability control. This migrating corrosion inhibitor has the ability to fill complex forms and members with congested reinforcement.
This corrosion inhibitor protects carbon steel, galvanised steel and other metals embedded in concrete from the corrosion induced by carbonation, chloride and atmospheric attack. When incorporated into the concrete mix, MCI-2008 ViaCorr seeks out and forms a corrosion inhibiting protective layer on metals. When used with repair mortars and grouts, MCI- 2008 ViaCorr will migrate to undisturbed concrete, providing effective corrosion protection to rebar already in place.
MCI-2008 is recommended as an additive for selfleveling concrete used in all reinforced, precast, prestressed, and posttensioned concrete structures; steel-reinforced concrete bridges, highways, roads, and buildings exposed to corrosive environments, including carbonation, deicing salts, and atmospheric attack; all reinforced marine concrete structures; concrete piers, piles, pillars, pipes, utility poles and architectural concrete; restoration and repair of all reinforced concrete; self-leveling underlayments; and specialty shaped concrete slabs.
The chemical structure of MCI admixtures is such that they do not decompose over an extended period of time, making them effective for periods in excess of 34 years. This effectiveness has been proven in two long-term independent test programs: The Strategic Highway Research Program (SHRP) and Cracked Beam studies based on ASTM G 109.
As a result of its makeup, MCI-2008 eliminates the rubbing and patching required to fill defects in poorly consolidated surfaces and significantly improves the concrete’s plastic and hardened properties. It is ideal for producing flowing concrete where rapid placing is required or in very congested zones, and significantly reduces gas permeability. Dosage is not affected by chloride concentration, and the product reduces water content while keeping good workability properties. MCI-2008 does not contain any nitrite-based compound.