Galvanized Wall Ties North Tonawanda NY

Do wall ties need to be galvanized in solid masonry walls in North Tonawanda? The steel used in concrete is typically not coated. Wouldn't solid masonry offer protection similar to that offered by concrete?

Local Companies

John Shaflucas Architects, P.C.
(716) 636-5000
1260 Sweet Home Rd.
Buffalo, NY
Harry R. Defler Corp.
(716) 839-3727
4446 Main St.
Buffalo, NY
Geiger Bros. Construction
(716) 837-7848
33 Claremont Ave.
Buffalo, NY
Sealmaster/Buffalo - Jet Black Sealers, Inc.
(716) 891-4197
555 Ludwig Ave.
Buffalo, NY
Nussbaumer & Clarke, Inc.
(716) 827-8000
3556 Lake Shore Rd., Ste. 500
Buffalo, NY
Lauer-Manguso & Associates Architects
(716) 837-0833
4080 Ridge Lea Rd.
Buffalo, NY
T & D Ceramics
(716) 894-9209
2133 Broadway
Cheektowaga, NY
Sherex Industries, Ltd.
(716) 875-0176
400 Riverwalk Pkwy., Ste. 600
Tonawanda, NY
Precision Photo-Fab Inc.
(716) 821-9393
4020 Jeffrey Blvd.
Buffalo, NY
McKesson
(716) 677-7600
2700 North America Dr.
West Seneca, NY

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Source: MASONRY CONSTRUCTION MAGAZINE
Publication date: October 1, 1998

Do wall ties need to be galvanized in solid masonry walls? The steel used in concrete is typically not coated. Wouldn't solid masonry offer protection similar to that offered by concrete?

There is a substantial difference between the protection to steel offered by masonry and that offered by concrete. In concrete, the fluid cement paste completely covers the bars. In masonry, the steel is often dry-laid on the units and the mortar placed on the top. Therefore, the bars are not always encased completely in mortar. Sometimes there are voids along the bottom of the bars, which can allow condensation and moisture to accumulate. The corrosion potential of the steel is also affected by material porosity and diffusion rates of harmful ions (such as chlorides). Bare steel is protected initially by a passivating layer that forms in the highly alkaline environment of wet concrete or mortar. Carbonation will reduce the alkalinity of the mortar or concrete and eliminate this protection. Mortars, being more porous than concrete, will carbonate at greater rates. There is also greater potential for diffusion from chloride ions from acid cleaning or other sources. Depending on their concentration, chloride ions will eliminate the pacifying effect of the mortar. For these reasons, unprotected steel encased in mortar will have an increased corrosion potential at a young age. Requirements for concrete or mortar cover...

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