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 | Jun 29, 2015
Getty Foundation announces second series of ‘Keeping It Modern’ grants to conserve 20th century architecture
Frank Lloyd Wright’s Unity Temple and Erich Mendelsohn’s Einstein Tower are among the 14 projects added to the Keeping It Modern grant program.
Architects | Jun 29, 2015
9 top picks for continuing education from BD+C University
A roundup of top AIA/CES Discovery courses from BD+C University.
Industrial Facilities | Jun 24, 2015
5 trends that will shape the future of scientific labs
Scientific research is increasingly focusing on data collection and analytical analysis of that data, meaning the "lab of the future" will more closely resemble contemporary tech spaces, writes Gensler’s Erik Lustgarten.
Architects | Jun 23, 2015
Architecture Billings Index back to positive territory for May 2015
The American Institute of Architects reported the May ABI score was 51.9, up from a mark of 48.8 in April.
Architects | Jun 23, 2015
If film directors designed homes, what would they look like?
From Burton to Bergman, Gondry to Greenway, artist Federico Babina illustrates what buildings would look like if designed by the world’s greatest directors.
High-rise Construction | Jun 23, 2015
The world's best new skyscrapers for 2015
One World Trade Center and Abu Dhabi's Burj Mohammed Bin Rashid Tower are among the four towers named Best Tall Buildings by the Council on Tall Buildings and Urban Habitat.
Museums | Jun 23, 2015
Moreau Kusunoki's 'art in the city' scheme wins Guggenheim Helsinki design competition
The firm’s design concept makes use of the museum’s site, turning it into a bustling, well-connected waterfront hub.
Architects | Jun 22, 2015
NCARB adopts alternative for certification of foreign architects
The change, effective July 1, 2016, will replace the current BEFA Program’s requirements, eliminating the committee dossier review and the need to document seven years of credentialed practice in a foreign country.
BIM and Information Technology | Jun 21, 2015
11 tips for mastering 3D printing in the AEC world
Early adopters provide first-hand advice on the trials and tribulations of marrying 3D printing with the science of building technology.
Events Facilities | Jun 19, 2015
4 ways convention centers are revamping for the 21st century
Today's convention centers require more flexible spaces, the ability to blend virtual and in-person events, and meaningful sustainability, writes Skanska's Tom Tingle.
