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
| Jul 27, 2014
Maturing ‘plug and play’ sector could take market share from AEC Giants [2014 Giants 300 Report]
The growth of modular and containerized data center solutions may eventually hinder the growth of traditional data center construction services.
| Jul 27, 2014
Top Data Center Construction Firms [2014 Giants 300 Report]
Holder, Turner, and DPR head Building Design+Construction's 2014 ranking of the largest data center contractors and construction management firms in the U.S.
| Jul 27, 2014
Top Data Center Engineering Firms [2014 Giants 300 Report]
Fluor, Jacobs, and Syska Hennessy top Building Design+Construction's 2014 ranking of the largest data center engineering and engineering/architecture firms in the U.S.
| Jul 27, 2014
Top Data Center Architecture Firms [2014 Giants 300 Report]
Gensler, Corgan, and HDR head Building Design+Construction's 2014 ranking of the largest data center architecture and architecture/engineering firms in the U.S.
| Jul 25, 2014
Grocery stores choosing Green Globes for building sustainability certification
The Green Building Initiative (GBI) has announced a wave of Green Globes certifications for new grocery stores, including New Seasons Markets, Whole Foods, Price Chopper, Aldi’s, Harris Teeter, Wegmans, and Publix.
| Jul 24, 2014
SLATERPAULL Architects to merge with Hord Coplan Macht
The merger will create a full-service practice with offices in Baltimore, MD, Denver, CO and Alexandria, VA that offers integrated architecture, landscape architecture, interior design, planning and historic preservation services.
| Jul 24, 2014
MIT researchers explore how to make wood composite-like blocks of bamboo
The concept behind the research is to slice the stalk of bamboo grass into smaller pieces to bond together and form sturdy blocks, much like conventional wood composites.
| Jul 24, 2014
Glazing options in correctional and detention facilities
Like it or not, the number of incarcerated people in the U.S. continues to rise. With that, increased security in all aspects of these facilities continues to be a priority. This is where security glazing products that allow line of sight for supervisors to observe and still maintain secure separation can play a key role. SPONSORED CONTENT
| Jul 23, 2014
Holistic care model, regulatory changes make outpatient facilities a high priority [2014 Giants 300 Report]
With the Affordable Care Act still in its infancy, Building Teams are seeing reverberations in the investment decisions of healthcare providers, including new ideas about the types of buildings they are asked to create.
| Jul 23, 2014
Meet Acquario Ceará: The giant crustacean-shaped aquarium that's causing concerns
A new aquarium on Brazil's northeastern coast is designed, engineered, constructed and financed by U.S. firms and institutions.