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
| Oct 5, 2011
GREENBUILD 2011: Tile manufacturer attains third-party certification for waste recycling processes
Crossville has joined with TOTO to recycle that company’s pre-consumer fired sanitary ware.
| Oct 5, 2011
GREENBUILD 2011: Sustainable construction should stress durability as well as energy efficiency
There is now a call for making enhanced resilience of a building’s structure to natural and man-made disasters the first consideration of a green building.
| Oct 5, 2011
GREENBUILD 2011: Solar PV canopy system expanded for architectural market
Turnkey systems create an aesthetic architectural power plant.
| Oct 5, 2011
GREENBUILD 2011: Kohler builds sustainable booth at Greenbuild 2011
In a setting composed of reclaimed materials, biodegradable signage, energy-efficient lighting and more, exhibitor highlights its new products with ecological awareness.
| Oct 5, 2011
GREENBUILD 2011: Brick offers growing options for sustainable building design
Brick exteriors, interiors and landscaping options can increase sustainability that also helps earn LEED certification.
| Oct 5, 2011
GREENBUILD 2011: Roof hatch designed for energy efficiency
The cover features a specially designed EPDM finger-type gasket that ensures a positive seal with the curb to reduce air permeability and ensure energy performance.
| Oct 4, 2011
GREENBUILD 2011
Click here for the latest news and products from Greenbuild 2011, Oct. 4-7, in Toronto.
| Oct 4, 2011
GREENBUILD 2011: Methods, impacts, and opportunities in the concrete building life cycle
Researchers at the Massachusetts Institute of Technology’s (MIT) Concrete Sustainability Hub conducted a life-cycle assessment (LCA) study to evaluate and improve the environmental impact and study how the “dual use” aspect of concrete.
| Oct 4, 2011
GREENBUILD 2011: Johnsonite features sustainable products
Products include rubber flooring tiles, treads, wall bases, and more.