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
| Aug 11, 2010
Shepley Bulfinch announces merger of Merzproject
National architecture firm Shepley Bulfinch of Boston and Merzproject of Phoenix today announced their merger. The merger unites Shepley Bulfinch, one of the country’s leading design firms, and Merzproject.
| Aug 11, 2010
Skanska Promotes Richard Kennedy to COO for NY/NJ Metro Area
Skanska USA Building Inc., headquartered in Parsippany, N.J., has announced that Richard Kennedy was promoted to Chief Operating Officer from his previous role as Senior Vice President – General Counsel. Kennedy’s promotion marks the latest addition to Skanska’s national leadership team.
| Aug 11, 2010
The New Yorker's David Owen: Why Manhattan is America's greenest community
David Owen is a staff writer at The New Yorker and the author of 14 books, most recently Green Metropolis: Why Living Smaller, Living Closer, and Driving Less Are the Keys to Sustainability, in which he argues that Manhattan is the greenest community in America. He graduated from Harvard and lives in Washington, Conn., where he chairs the town planning commission.
| Aug 11, 2010
Brown Craig Turner opens senior living studio
Baltimore-based architecture and design firm Brown Craig Turner has significantly expanded its housing design capabilities and expertise with the launch of its new senior living studio.
| Aug 11, 2010
George H. Miller, FAIA, inaugurated as 2010 AIA President
George H. Miller, FAIA, partner at Pei Cobb Freed & Partners LLP, was inaugurated as the 86th president of the American Institute of Architects (AIA) during ceremonies held on December 4th.
| Aug 11, 2010
Burwell Architects, Ziegler Cooper Architects announce merger
Ziegler Cooper Architects is pleased to announce that Burwell Architects has merged into the Corporate Interior Studio of Ziegler Cooper Architects. We believe the new relationship will enhance and expand the services we can provide to our clients.
| Aug 11, 2010
BE&K Building Group, Turner, BRPH awarded Boeing 787 Dreamliner assembly plant project
A joint venture of the BE&K Building Group and Turner Construction (BE&K | Turner), with design partner BRPH, has been awarded the design-build contract for design and construction of The Boeing Company’s new 787 Dreamliner final assembly plant in North Charleston, South Carolina.
| Aug 11, 2010
Sustainable Buildings as Teaching Tools: 4 Strategies for Integrating Buildings into Experiential Learning
4 Strategies for Integrating Buildings into Experiential Learning
| Aug 11, 2010
Using physical mockups to identify curtain wall design flaws
Part two of a five-part series on diagnosing and avoiding cladding, glazing, and roofing failures from building forensics expert IBA Consultants.