At a recent meeting, the Concrete Reinforcing Steel Institute (CRSI) Board of Directors urged all CRSI producer members to revert to an inch-pound bar marking system for all sizes and grades of deformed reinforcing steel products. CRSI members produce more than 90% of domestic reinforcing steel.
The intention of this resolution is for all new rollings of reinforcing steel products to be marked with inch-pound bar markings no later than January 1st, 2014. Providing a 25-month phase in period should permit producer members sufficient time to re-tool finish roll inventory to the inch-pound marking system as rolls need to be replaced, significantly reducing or eliminating the need to unnecessarily cut new rolls to meet the resolution.
As the ASTM specifications for reinforcing steel products permit reinforcing bars to be marked in either soft metric, or inch-pound markings, existing inventory of soft metric bars can continue to be sold alongside inch-pound marked bars during and after the January 1st, 2014, phase-in target.
The intention of this resolution is to reduce confusion and the chance of errors or delays from the construction supply chain. CRSI members are strongly encouraged to revert to the inch-pound marking system for steel reinforcing bars as soon as practical to minimize any additional confusion to the supply chain of steel reinforcing bars.
This change is the result of several actions. The Federal Highway Administration no longer mandates metrification of federally funded road and bridge construction projects and all state Departments of Transportation no longer require materials to be specified and sourced in metric sizes/quantities. Additionally, a large majority of the non-governmental construction community never adopted metric measurements in their plans and specifications. The American Concrete Institute (ACI), through their Technical Activities Committee (TAC), has strongly encouraged CRSI members to mark reinforcing bars with traditional inch-pound size designations. ACI is the standards body within the United States responsible for developing the concrete building code. The concrete building code and other ACI documents reference the inch-pound size as the primary designation.
“It made logical sense for the industry to begin the process to move away from soft metric markings,” said Robert Risser, CRSI President. “None of our private or government customers are using metric plans or specifications any longer. The phase-in period will allow industry members to make the change over at minimal additional expense. CRSI is now in the process of making the appropriate changes to our manuals and literature.” BD+C
Related Stories
Architects | Apr 4, 2018
8 things to consider before using digital media to communicate with employees
The Marlin Company, a visual communications and digital signage provider, published a guide that outlines eight basic questions, along with some advice, about workplace digital signage.
Education Facilities | Mar 30, 2018
How can we design safer schools in the age of active shooters?
How can we balance the need for additional security with design principles that foster a more nurturing next-generation learning environment for students?
Architects | Mar 26, 2018
Designing for homeless facilities: Critical spaces to consider
The City of San Diego is home to the fourth largest homeless population in the U.S.
Education Facilities | Mar 23, 2018
An introvert's oasis: How to create learning environments for all student types
In order to understand why a school day can be so grueling for an introverted student, it’s important to know what it means to be introverted, writes NAC Architecture’s Emily Spiller.
Architects | Mar 22, 2018
The benefits and nuances of integrated design
Achieving integrated design usually means operating under a strong relationship.
Architects | Mar 14, 2018
Becoming nature: The building design evolution meets the living building revolution
With the environmental movement, sustainability became a marker of innovation in design for the built environment.
Office Buildings | Mar 12, 2018
Sound advice on workplace design
Thoughtful design, paired with a change management program to educate staff, can both enhance connectivity and minimize distractions.
Architects | Mar 9, 2018
Designing healthier buildings: Fitwel certification system
The Fitwel certification system is relatively simple and involves registering a building on a custom scorecard.
Architects | Mar 7, 2018
Balkrishna Doshi named 2018 Pritzker Laureate
Over the course of 70 years, Doshi was instrumental in shaping the discourse of architecture throughout India, from low-cost housing for thousands to landmark projects like the Indian Institute of Management.
Architects | Mar 7, 2018
New National Building Museum exhibit explores the architecture of the Manhattan Project
The exhibit will run through March 3, 2019.
