Galvanized Wall Ties Potsdam NY

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

Local Companies

Kma Construction
(315) 265-6002
33 Main St
Potsdam, NY
Ain
(516) 466-4880
320 Northern Blvd
Great Neck, NY
Ronstein Construction Corp
(845) 794-0276
46 Katrina Falls Rd
Rock Hill, NY
Fastenal
(845) 897-4709
115 Old Route 9
Fishkill, NY
Raiola Construction Inc
(914) 628-4530
87 Vista Ter N
Mahopac, NY
Brooks Washburn Architect, PC
183 Sissonville Road
Potsdam, NY
Augustine C W Inc
(315) 347-4700
3470 US Highway 11
De Kalb Junction, NY
Hadala Construction
(716) 874-0300
331 Grote St
Buffalo, NY
Daval Constr Corp
(516) 746-1212
6 Denton Ave S
New Hyde Park, NY
Romero Construction Corp
(718) 798-2358
415 E 204th St Apt 4D
Bronx, 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...

Click here to read full article from Masonry Construction

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