Galvanized Wall Ties Frederick MD

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

Cauhaus Incorporated
11039 Old Annapolis Road
Frederick, MD
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American Institute of Architects

Rubeling & Associates, Inc.
301-668-8677 x4
135 West Patrick Street,Suite 200
Frederick, MD
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American Institute of Architects

Norman R. Sandler Architect
2500Waterside Drive,Suite 209
Frederick, MD
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American Institute of Architects

NVR, Inc. Architectural Services
21 Byte Court,Suite A
Frederick, MD
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American Institute of Architects

Fitzgerald Architects, LLC
(301) 834-7820
2155 Gapland Rd
Jefferson, MD
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Commercial facilities, Financial buildings, Housing - Multi-family, Housing - Single family , Medical office buildings, Religious buildings, Research facilities
License
Maryland
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American Institute of Architects

Proffitt & Associates Architects, PC
100 North Market Street
Frederick, MD
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Commercial facilities, Financial buildings, Fire stations, Medical office buildings, Municipal buildings, Office buildings, Parking Structures, Religious buildings, Schools K-12, Warehouse/Distribution
Service Type
Adaptive Reuse, Architectural Design / Documentation, Design-Build, Interior Design, Sustainable Building Design
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District of Columbia, Maryland, Pennsylvania, Vermont, Virginia, West Virginia
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American Institute of Architects

Zavos Architecture & Design, LLC
323 W. Patrick Street
Frederick, MD
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American Institute of Architects

King, Asbury & Associates, P.C.
6 North East Street,Suite 300
Frederick, MD
Service Type
Accessibility Compliance, Architectural Design / Documentation, Code Compliance, Design-Build, Historic Preservation, Interior Design
Membership Organizations
American Institute of Architects

Sol Agua Terra
PO Box 1961
Frederick, MD
Building Type
Colleges & Universities, Commercial facilities, Hotels, Housing - Multi-family, Medical office buildings, Mixed-use buildings, Other, Restaurants, Schools K-12, Senior/Assisted Living
Service Type
Accessibility Compliance, Architectural Design / Documentation, Contract Administration, Economic Feasibility Studies, LEED Certification Services, Sustainable Building Design
License
Maryland, Virginia
Membership Organizations
American Institute of Architects

M S B Architects
PO BOX 600
Myersville, MD
Membership Organizations
American Institute of Architects

Galvanized Wall Ties

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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...

Click here to read full article from Masonry Construction

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