Legislators in New York and New Jersey are considering bills that would promote the use of low-carbon concrete on state projects.
Both legislative houses in New York have approved a measure that would require the Office of General Services to set guidelines sourcing concrete with lower embodied carbon for state contracts. Contractors would be mandated to follow the guidelines and certify that the concrete they use is in compliance.
In New Jersey, the legislature is deliberating a bill that would establish a discount rate for contractors using low-carbon concrete when they submit bids for state projects. The bidding advantage would be based on the global warming potential values for concrete. The discount could be as much as 8% of the total cost of the project.
The production of cement is estimated to be responsible for as much as 7% of total global carbon emissions. Cement manufacturers have developed portland-limestone cement, a blend with higher limestone content and lower carbon. Another lower carbon manufacturing process uses fly ash to replace as much as 50% of the portland cement in concrete. A third alternative involves injecting carbon dioxide into ready-mix concrete at the batch plant.
Related Stories
| Feb 7, 2014
New LEED Dynamic Plaque system will measure building performance
The U.S. Green Building Council recently unveiled the LEED Dynamic Plaque, which is a new system designed for benchmarking and comparing post-occupancy building performance on a global scale.
| Feb 7, 2014
Los Angeles officials struggle to deal with needed seismic retrofits
Sixteen years ago, the Los Angeles City Council decided against requiring retrofits of existing buildings because of the projected cost and the threat of losing 20,000 apartment buildings.
| Feb 7, 2014
Los Angeles officials struggle to deal with needed seismic retrofits
Sixteen years ago, the Los Angeles City Council decided against requiring retrofits of existing buildings because of the projected cost and the threat of losing 20,000 apartment buildings.
| Feb 7, 2014
EPA, Freddie Mac collaborate on energy- and water-efficient apartments
Freddie Mac will gather data on energy and water use from property owners, and encourage lenders to spend on energy-efficient investments for multifamily housing.
| Feb 7, 2014
ASHRAE releases new refrigerant standards
The 2013 editions of ASHRAE’s major refrigerants-related standards, incorporating 41 new addenda, have been published.
| Feb 7, 2014
Ohio legislature moves to bar LEED standards on state projects
The use of LEED standards is being barred for public construction in Ohio under a state senate resolution.
| Jan 31, 2014
Center for Environmental Innovation in Roofing releases solar panel racking criteria for asphalt shingle roof systems
The Center for Environmental Innovation in Roofing’s PV Taskforce is releasing the first public draft of PV Racking and Attachment Criteria for Effective Asphalt Shingle Roof System Integration for an initial round of public comment.
| Jan 31, 2014
Developers are exceeding LEED standards for marketing purposes
Using LEED certification as a marketing tool is perceived by developers to be a successful tool, and this has pushed them to go above the minimum requirements at each level of certification, according to a study in the Environmental Science & Technology journal.
| Jan 31, 2014
OSHA extends feedback period for disclosure of workplace injuries proposal
The Occupational Safety and Health Administration said it would extend the comment period for a proposal that would require employers to submit electronic reports of workplace injuries and illnesses.
| Jan 31, 2014
DOE releases new efficiency standards for halide lamps
The Energy Department has finalized new energy efficiency standards for metal halide lamp fixtures, which are used in lighting for big box stores and parking lots.
