Canadian Finishing & Coatings Manufacturing Magazine September/October 2021 - 31

PLATING AND ANODIZING: GALVANIZING
Beyond bridges, the city of Calgary is known to specify HDG
for many kinds of infrastructure. When the city was ready to
refurbish the 7th Avenue Light Rail Transit (LRT) System in
2005, HDG was the logical choice (Figure 4). Because this project
lay on the busiest stretch of the commuter line, turnaround time
and coating durability were critical to the overall design. HDG
achieves a durable coating for many projects due to its very
tightly-bonded (~3,600 psi) and abrasion resistant intermetallic
layers, which are harder than the base steel and very difficult to
damage1
.
Additionally, steel manufacturing, fabrication, and hot-dip
The construction of the OlivierCharbonneau
Bridge is part of Quebec's
plan to expand and revitalize its highway
infrastructure across the province.
steel component of the Olivier-Charbonneau Bridge for decades
to come. Meanwhile, HDG was also specified to protect the
reinforcing steel within the concrete deck from corrosion due to
heavy de-icing salt applications planned for six months of every
year. In addition to an established track record for delaying the
onset of steel corrosion within concrete for many decades, hotdip
galvanizing is specified without negative design impacts to
bond strength or overlap length (Figure 3)6,7
.
galvanizing are factory-controlled processes and outside factors
such as weather have little impact on their completion. This
allows articles to be rapidly erected in any weather condition
while minimizing turnaround time and construction schedules.
The design team also desired a uniform appearance across all
hardware, structural members, ornamental light posts, handrails,
benches, and trash bins.
Because all these items are suitable for HDG, its extensive
use throughout the project achieved the preferred aesthetic and
consistent protection against extreme winters and constant
traffic. A 2016 video interview with the project's engineer
on specifying HDG and its performance since installation is
available at galvanizeit.org/CalgaryLRT.
Hot-dip galvanizing is not just limited to specification for
infrastructure projects. Lightweight galvanized steel elements
are often carefully selected to achieve architectural interest for
recreation facilities, garages, and other building structures. HotComing
up in the
November/December issue of
Space Closing
October 5
Ad Material
October 12
INDUSTRIAL FINISHING
Automotive Coatings
Masking
Wood Lacquers and Varnishes
Anti-reflective Coatings
PLATING AND ANODIZING
Nickel Plating
Pumps and Filters
PAINT AND COATINGS MANUFACTURING
Heavy-Duty Powder Coatings
Nanotechnology in Coatings
Coatings in Canada: Post Pandemic?
To advertise, submit editorial & new products please contact:
Gillian Thomas, Sales gillian.thomas@cfcm.ca | Theresa Rogers, Editor theresa.rogers@cfcm.ca
www.cfcm.ca
www.cfcm.ca
31
28 MIX IT UP
Equipment meets changing
mixing demands
36 WATER BUGS
Learn from one electroplater's
experience
LARGE
STRUCTURES
Coatings increase
the lifespan and
aesthetics of critical
infrastructure
MARCH/APRIL 2021
WWW.CFCM.CA
20 ALUMINUM ALCHEMY
Key pretreatment sequences for
anodizing aluminum
29 CORROSION INHIBITORS
Finding consistent corrosion
protection for ACE equipment
MARINE
COATINGS
Product development
and innovation
propel demand
MAY/JUNE 2021
WWW.CFCM.CA

http://www.galvanizeit.org/CalgaryLRT http://WWW.CFCM.CA http://WWW.CFCM.CA http://www.cfcm.ca http://www.cfcm.ca

Canadian Finishing & Coatings Manufacturing Magazine September/October 2021

Table of Contents for the Digital Edition of Canadian Finishing & Coatings Manufacturing Magazine September/October 2021