Sources: Sublime Systems, Somerville, Mass.; CP staff Third-party testing confirms that Sublime Systems’ namesake concrete binder, produced with sharply lower carbon dioxide emissions metrics than portland cement, exhibits strength development, durability, low shrinkage and other engineering properties matching or exceeding ASTM C1157, Standard Performance Specification for Hydraulic Cement benchmarks. In contrast to high temperature, fuel-intensive portland cement production, Sublime Cement…
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Master Builders Solutions builds out Concrete Now! app functionality
Sources: Master Builders Solutions, Beachwood, Ohio; CP staff Master Builders Solutions’ new Concrete Now! app, available in desktop, plus mobile iOS or Android versions, equips concrete practitioners with fiber dosage, carbon footprint, surface evaporation, and mix temperature or volume calculator or estimator tools. “Producers have many facets of their business to manage each day, and we understand the intricacies of making small improvements…
Read MoreHolcim, Martin Marietta veteran Allen rounds out Terra CO2 C-suite
Supplementary cementitious material process developer Terra CO2 Technology has appointed Chance Allen as chief operating officer, ahead of an early-2024 groundbreaking on a charter production facility for the Golden, Colo. company’s flagship offering, OPUS SCM. Allen arrives after a nearly four-year tour as Holcim US regional head, Western United States and 20-plus years in Martin Marietta Materials vice president and…
Read MoreHeidelberg Materials seals global cement production model in U.S. Heartland
Heidelberg North America CEO Chris Ward and German parent company Chairman Dominik von Achten ushered a new era for their 120-year-old cement operation in Mitchell, Ind. during a mid-June customer, employee, and public or private partner gathering. Amid new material handling, calciner, kiln and finishing equipment equal to 2.4 million metric tons per year, they dedicated an operation set to…
Read MorePort Authority mix design approvals hinge on carbon emissions cap
Concrete schedules for the vast Port Authority of New York and New Jersey infrastructure and building portfolio will soon reflect maximum carbon dioxide emissions limits—equivalent to a 25 percent or greater reduction in portland cement content—plus portland-limestone cement and ground glass pozzolans allowances. The new CO2 threshold and conditional binder specifications are the latest measures in a three-year old program…
Read MorePort Authority NYNJ sets carbon threshold for concrete specifications
Sources: Port Authority of New York and New Jersey; CP staff Concrete schedules for the Port Authority of New York and New Jersey’s infrastructure and building portfolio will soon reflect maximum carbon dioxide emissions limits—equivalent to a 25 percent or greater reduction in portland cement content—plus portland limestone cement and ground glass pozzolans allowances. The new CO2 threshold and conditional binder…
Read MoreEnergy efficiency prevails at new SikaFiber production lines
New extrusion and packaging lines at the Sika Corp. plant in Chattanooga, Tenn. spell an increase of up to 4 million pounds of concrete reinforcing fiber capacity. Investment in the facility emphasizes a commitment to customers in the region and positions the operation for timely SikaFiber production to meet demands of a growing market. The new extrusion line is approximately…
Read MoreLafarge Canada expands renewable diesel spec to prairie fleet
After a successful demonstration in British Columbia concrete operations, Lafarge Canada Inc. is extending to its Manitoba fleet the use of renewable diesel from waste oil and fats processor 4Refuel. The migration from petroleum diesel equates to lower carbon dioxide emissions tracked in material deliveries. “Switching to renewable diesel (R50) is a significant step forward in our sustainability journey,” says…
Read MoreTech giants embrace carbon-optimized concrete for data centers
In “Greener Concrete for Data Centers,” an open letter posted at https://climateaccord.org, iMasons Climate Accord leaders Amazon Web Services, Google, Meta Platforms and Microsoft implore their industry to work together to a) Deliver a technology roadmap to decarbonize concrete; b) Set standard carbon dioxide emissions measurement baselines to measure against; c) Drive transparency through Environmental Product Declarations; and, d) Create…
Read MoreNorth 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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