Cement-wise Texas Professor Elected ACI President

Sources: American Concrete Institute, Farmington Hills, Mich.; CO staff University of Texas Department of Civil, Architectural and Environmental Engineering Professor Maria Juenger has begun a 2025-2026 term as American Concrete Institute president. Alongside extensive ACI committee activity, she has overseen investigations of cement-based materials, including phase formation in cement clinkering; cement and supplementary cementitious material hydration chemistry; and, chemical deterioration…

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Paste-aggregate Separation Process Rewrites Demolition Concrete Recycling

Sources: Fives FCB, Villeneuve d’Ascq, France; CO staff Identifying optimal grinding kinetics and compressive force trajectories for up to 5-in. demolition concrete feeds, global mineral process equipment specialist Fives FCB attains economical separation of cement paste from sand and gravel or rock. In one to three cycles or material passes, the FCB Rhodax 4D inertial vibrating cone grinder nets cement…

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Former PCA Economist Debuts ‘The Sullivan Report’

Ed Sullivan, who formerly served as The Portland Cement Association’s (PCA) chief economist and senior vice president of market intelligence, said he will continue to publish his popular economic insights on Substack under “The Sullivan Report.“ “I plan to continue to assess the U.S. economy and how that relates to the construction and cement industries,” Sullivan told Cement Optimized. “Given the uncertainty surrounding the…

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Heidelberg Completes Giant Acquisition

Heidelberg Materials North America announced that it has completed the acquisition of Giant Cement Holding Inc. (GCHI) and its subsidiaries, Giant Cement Co., Dragon Products Co. and Giant Resource Recovery, from the Fortaleza, Uniland and Trituradora groups. The acquired operations include a cement plant in Harleyville, S,C., and four associated distribution terminals; a joint-venture deep-water import terminal in Savannah, Ga.;…

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Cemex Ventures Joins Eagle Materials Among Terra CO2 Investors

The Cemex S.A.B. de C.V. corporate venture capital unit has announced an investment in Terra CO2 Holdings, Golden, Colo., developer of OPUS SCM and ZERO supplementary cementitious material and portland cement replacement binders.  Terra CO2’s reactor and processing technology is based on widely available silicate rock feedstock. Its grinding, thermal treatment and classifying equipment suits standalone plant construction or installation…

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