TCI SprayStrong
(Provides properties of improved hydrophobicity in concrete)
FEATURES:
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Protects from the Impacts of Corrosion and Environmental Contaminates
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Establish a Protective Film on the Rebar Surface
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Preserves, Repairs, and Strengthens Structures through Chemistry
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Extends the Service Life of Structures and Concrete Pipes
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Convert Rust to a Hard Insert Shell
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Reduces Water Penetration
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Provides Resistance to Acid
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Substantially Reduces Porosity
TYPICAL USAGES:
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Water and Wastewater Concrete Pipes
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Hydroelectric Dams and Bridges
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Concrete Medians
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Water Treatment Facilities
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Industrial Plants
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Parking Garages
CHEMICAL PROCESS OF CONCRETE DETERIORATION
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New concrete has a high pH which continually regenerates the protective coating on the rebar.
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Concrete is extremely porous
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Over time, oxygen & moisture, chlorides, carbon dioxide and other environmental contaminants migrate thru the concrete down to the reinforcing steel
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A drop in pH will occur over time as a result of the concrete’s exposure to carbon dioxide, chlorides, acids and other chemicals and environmental contaminates.
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The pathways for these chlorides and pH reducing contaminants to enter the concrete are cracks and gel pores.
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Expansive stresses on surrounding concrete (<20,000 psi) causes the rebar to swell and the concrete to delaminate from the reinforcing and the concrete to crack
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With the pH compromised and more contaminates migrating through cracking the deterioration cycle is accelerated, and corrosion begins to travel through the bar to other areas far beyond the cracking.
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Traditional methods of blocking these pathways, sealants, coatings and water repellents may provide short term protection for new concrete, but breakdown with time as they are organic.
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Patching without pacifying the steel in surrounding concrete will lead to accelerated corrosion (anodic ring)
UNTREATED CLEANED REBAR AFTER EXPOSURE TO RAINWATER
