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
| Apr 19, 2011
What are the 15 most-watched construction and engineering stocks?
According to Motley Fool, a multimedia financial services company, the most-watched construction and engineering stock is Fluor (NYSE: FLR), which ranks #1 on BD+C’s Giants 300 engineering list with $1.994 billion in revenue in 2009. Check out the 14 other most-watched A/E stocks.
| Apr 19, 2011
AIA announces top 10 green Projects for 2011
The American Institute of Architects Committee on the Environment announced its Top 10 Green Projects for 2011. Among the winners: Cherokee Studios in Los Angeles, the Department of Energy's National Renewable Energy Laboratory in Golden, Colo., and the Vancouver Convention Centre West in Vancouver, British Columbia.
| Apr 18, 2011
Greening and Upgrading Today’s Vertical Transport Systems
Earn 1.0 AIA/CES HSW/SD learning units by studying this article and passing the online exam.
| Apr 14, 2011
U.S. embassies on a mission to green the world's buildings
The U.S. is putting greater emphasis on greening its worldwide portfolio of embassies. The U.S. State Department-affiliated League of Green Embassies already has 70 U.S. embassies undergoing efforts to reduce their environmental impact, and the organization plans to increase that number to more than 100 by the end of the year.
| Apr 14, 2011
How AEC Professionals Choose Windows and Doors
Window and door systems need to perform. Respondents to our annual window and door survey overwhelmingly reported that performance, weather resistance, durability, and quality were key reasons a particular window or door was specified.
| Apr 14, 2011
USGBC debuts LEED for Healthcare
The U.S. Green Building Council (USGBC) introduces its latest green building rating system, LEED for Healthcare. The rating system guides the design and construction of both new buildings and major renovations of existing buildings, and can be applied to inpatient, outpatient and licensed long-term care facilities, medical offices, assisted living facilities and medical education and research centers.
| Apr 13, 2011
National Roofing Contractors Association revises R-value of polyisocyanurate (ISO) insulation
NRCA has updated their R-value recommendation for polyisocyanurate roof insulation with the publication of the 2011 The NRCA Roofing Manual: Membrane Roof Systems.
| Apr 13, 2011
Professor Edward Glaeser, PhD, on how cities are mankind’s greatest invention
Edward Glaeser, PhD, the Fred and Eleanor Glimp Professor of Economics at Harvard University and director of the Taubman Center for State and Local Government and the Rappaport Institute for Greater Boston, as well as the author of Triumph of the City: How Our Greatest Invention Makes Us Richer, Smarter, Healthier, and Happier, on how cities are mankind’s greatest invention.
| Apr 13, 2011
Southern Illinois park pavilion earns LEED Platinum
Erin’s Pavilion, a welcome and visitors center at the 80-acre Edwin Watts Southwind Park in Springfield, Ill., earned LEED Platinum. The new 16,000-sf facility, a joint project between local firm Walton and Associates Architects and the sustainability consulting firm Vertegy, based in St. Louis, serves as a community center and special needs education center, and is named for Erin Elzea, who struggled with disabilities during her life.
| Apr 13, 2011
Virginia hospital’s prescription for green construction: LEED Gold
Rockingham Memorial Hospital in Harrisonburg, Va., is the commonwealth’s first inpatient healthcare facility to earn LEED Gold. The 630,000-sf facility was designed by Earl Swensson Associates, with commissioning consultant SSRCx, both of Nashville.