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
| May 10, 2012
Chapter 2 Exemplary High-Performance Reconstruction Projects
Several case studies show how to successfully renovate existing structures into high-performance buildings.
| May 9, 2012
Chapter 1 Reconstruction: ‘The 99% Solution’ for Energy Savings in Buildings
As a share of total construction activity reconstruction has been on the rise in the U.S. and Canada in the last few years, which creates a golden opportunity for extensive energy savings.
| May 9, 2012
International green building speaker to keynote Australia’s largest building systems trade show
Green building, sustainability consultant, green building book author Jerry Yudelson will be the keynote speaker at the Air-Conditioning, Refrigeration and Building Systems (ARBS) conference in Melbourne, Australia.
| May 9, 2012
Tishman delivers Revel six weeks early
Revel stands more than 730 feet tall, consists of over 6.3 milliont--sf of space, and is enclosed by 836,762-sf of glass.
| May 9, 2012
Stoddert Elementary School in DC wins first US DOE Green Ribbon School Award
Sustainable materials, operational efficiency, and student engagement create high-performance, healthy environment for life-long learning.
| May 9, 2012
Shepley Bulfinch given IIDA Design award for Woodruff Library?
The design challenges included creating an entry sequence to orient patrons and highlight services; establishing a sense of identity visible from the exterior; and providing a flexible extended-hours access for part of the learning commons.
| May 9, 2012
Construction Defect Symposium will examine strategies for reducing litigation costs
July event in Key West will target decision makers in the insurance and construction industries.
| May 8, 2012
WDMA and AAMA release window, door & skylight market studies
Historic data for 2006 through 2011 and forecast data for 2012 through 2015 are included in the report.
| May 8, 2012
Study presents snapshot of domestic violence shelter services
Unique partnership of architects and domestic violence advocates brings new strategies for emergency housing.
| May 8, 2012
Gensler & J.C. Anderson team for pro bono high school project in Chicago
City Year representatives came to Gensler for their assistance in the transformation of the organization’s offices within Orr Academy High School, which also serve as an academic and social gathering space for students and corps members.
