There are currently many different international, federal, state, and even local standards and proposals regarding what constitutes low carbon concrete. What we have found is that each agency seems to be developing its own definition or setting its own standard. Most commonly, these seem to be either a target, such as a global warming potential (GWP) number, a reduction from a threshold, or use of specific supplementary cementitious materials (SCM). Here is a summary of some of the things happening.
Amarjeet S. Benipal, District 3 Director (center) and Amy Miller, Asphalt Pavement Alliance (second from right) celebrated Granite Construction, Teichert, Inc. and Tullis, Inc. for winning the Asphalt Pavement Alliance's Perpetual Pavement Awards for their work on the Sacramento and Tehama I-5 projects. Sacramento - On Thursday, The Asphalt Pavement Alliance (APA) awarded its annual Perpetual Pavement Awards for a consortium of companies, Caltrans, and academia for two asphalt highway projects in Northern California that lowered carbon emissions.
Note: This testimony was coordinated by the National Stone Sand and Gravel Association. CalCIMA thanks NSSGA for their coordination and efforts to secure this testimony and tirelessly represent the construction materials and aggregate industry in Washington D.C. SACRAMENTO, CA –Vice President of land & quarry operations at Granite Construction and NSSGA and CalCIMA member Gary W. Johnson testified today in front of the U.S. Senate Committee of Environment and Public Works. He highlighted the industry's key issues, such as: Infrastructure implementation challenges; permitting reform; Buy Clean initiatives; and the current situation with rail service. In addition, he spoke about the importance of recycling efforts and the need for government at all levels--local, state and federal to enable more recycling of roads.