FHWA publishes portland limestone cement benchmark

The Federal Highway Administration’s new TechNote on Portland Limestone Cement (FHWA-HRT-23-104) provides state highway agencies, contractors and concrete practitioners information enabling broader adoption of a blended binder to which cement plants across North America are migrating. The 12-page document reviews the history of PLC in the U.S.; chemical and physical requirements for a binder combining portland cement + 5-15 percent…

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Steel Climate Standard validates rebar, structural product carbon equation

The new Steel Climate Standard represents a fair, effective, unbiased tool to measure greenhouse gas (GHG) emissions associated with concrete reinforcement or tensioning, plus structural steel members or shapes, as well as a single, technology-agnostic framework for product certification. Along with providing customers in construction and manufacturing sectors a protocol behind embodied carbon calculations, the 48-page document from the Global…

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Steel Climate Standard contours Cement, Concrete Net Zero Roadmap

Sources: Global Steel Climate Council, Washington, D.C.; Nucor Corp., Charlotte, N.C.; CP staff A new Global Steel Climate Council standard offers a fair, effective, unbiased tool to measure greenhouse gas (GHG) emissions associated with long products used for concrete reinforcement or tensioning, plus structural steel members or shapes. Along with a protocol behind embodied carbon calculations, the 48-page Steel Climate…

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North American steel producers lead push for single, universal CO2 standard

The Global Steel Climate Council (GSCC), Washington, D.C. has drafted a standard for measuring and reporting carbon dioxide emissions in steel production. Council members aim to build on current accounting methodologies and reconcile gaps in multiple standards, published or under development. The standard GSCC envisions will: Provide a single, technology-agnostic protocol that applies to all steel producers equally;  Allow all…

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Steelmakers stress performance basis for climate metrics standard

Major concrete rebar producers Commercial Metals Co., Nucor Corp. and Steel Dynamics Inc. lead U.S. members of the Global Steel Climate Council (GSCC), recently chartered to support a standard that “accelerates the transition to low-emission steel and recognizes the potential of the recycled, circular steel model to reduce carbon emissions.” GSCC urges the United States and European Union, representatives of…

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Steelmakers eye performance-based mill emissions, climate metrics standard

Sources: Global Steel Climate Council; CP staff Major concrete rebar and structural steel operators Commercial Metals Co., Nucor Corp. and Steel Dynamics Inc. lead North American members of a new international coalition chartered to support a standard that “accelerates the transition to low-emission steel and recognizes the potential of the recycled, circular steel model to reduce carbon emissions.” The Global…

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