BRAND-NEW
SPECIAL ISSUE ON PROTECTIVE TECHNOLOGIES FOR BRIDGES, HIGHWAYS, INFRASTRUCTURES
Cortec’s MCI®-2005 Passes the ASTM G180 Testing The biobased organic admixture developed by Cortec has passed the testing for corrosion inhibiting admixtures. Cortec® Corporation has recently announced that its MCI®-2005 is the first biobased, organic corrosion inhibiting concrete admixture to pass the ASTM G180 protocol under ISO 17025 accredited testing.
T
he durability and the corrosion protection of metal products in
Characteristics of MCI®-2005
concrete structures are two of the biggest issues concerning
MCI-2005 is an organic, biobased corrosion inhibitor for protection of
engineers and construction workers, as evidenced in recent tragedies
metallic reinforcement in concrete structures containing a blend of amine
such as the collapse of a residential building in Florida and the Morandi
salts of carboxylic acids. Unlike calcium nitrite admixtures, which have a
bridge in Italy. Cortec has therefore developed the MCI® Technology, a
set accelerating effect that can cause early setup problems, MCI®2005
corrosion inhibiting admixtures that has proven efficiency even in severely
delays set time, making the concrete easier to work with and reducing
corrosive environments.
the heat of hydration. In addition to this, it contains 67% USDA certified
Cortec Laboratories conducted the ASTM G180 test, one of the two
biobased content and is certified to meet ANSI/NSF Standard 61 for use in
corrosion performance tests specified in ASTM C1582 - Standard
large potable water structures.
Specification for Admixtures to Inhibit Chloride-Induced Corrosion of
When incorporated into concrete, MCI®-2005 forms a protective
Reinforcing Steel in Concrete. The lab provided the testing through its
molecular layer on embedded metals to inhibit corrosion. In new
independent ISO 17025 accreditation.
construction, this is quantified by an increase in critical chloride threshold
The testing method, that measures corrosion inhibition ability in
and subsequent reduction in corrosion rates, once corrosion initiates.
chloride environments, is used to ensure that admixtures meet the
When used with repair mortars and grouts, it is also able to migrate into
widely accepted industry standards for the selection and qualification of
undisturbed concrete adjacent to the repair to protect reinforcement
corrosion inhibiting admixtures. Manufacturers usually use it to screen
already in place.
new chemistry formulations for their potential as corrosion inhibiting For further information: www.cortecvci.com
© Cortec
admixtures.
ipcm® Protective Coatings - 2021 DECEMBER - N. 40
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