Galvanized Wall Ties Buffalo NY

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

Local Companies

T & D Ceramics
(716) 894-9209
2133 Broadway
Cheektowaga, NY
Philipps Brothers Supply, Inc.
(716) 839-4800
2525 Kensington Ave.
Buffalo, NY
Ferguson Electric Construction Co., Inc.
(716) 852-2010
333 Ellicott St.
Buffalo, NY
Gay Sheet Metal Dies
(716) 877-0208
301 Hinman Ave.
Buffalo, NY
Niagara LaSalle
(716) 827-7010
110 Hopkins Road
Buffalo, NY
CRM of WNY, Inc.
716 208-5321
5153 Bayview Road
Hamburg, NY
Turner Construction Co.
(716) 853-1900
135 Delaware Ave., Ste. 407
Buffalo, NY
National Grid
(800) 642-4272
144 Kensington Ave.
Buffalo, NY
Huber Electric, Inc
(716) 824-8816
231 Chamberlin Dr.
Buffalo, NY
Great Lakes Pressed Steel Corp.
(716) 885-4037
1400 Niagara St.
Buffalo, NY

Provided By:

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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