ACI 318 steers Institutes on path toward Post-Tensioned Structural Concrete Code

An American Concrete Institute and Post-Tensioning Institute partnership, formalized through the new joint ACI-PTI Committee 320, Post-Tensioned Structural Concrete Code, responds to expressed industry need for building code requirements addressing the unique aspects of post-tensioned concrete design. ACI-PTI 320 will develop and maintain a companion to ACI 318, “Building Code Requirements for Structural Concrete.” Chairing the committee will be Dr.…

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Research contrasts resistivity test vs. w/c ratio to gauge permeability

A new Ready Mixed Concrete Research & Education Foundation report reflecting work at the National Ready Mixed Concrete Association’s College Park, Md. laboratory addresses the lack of a consistent and cost-effective concrete permeability test method. “Reliability of Resistivity Tests of Concrete” authors evaluate mix design and specimen preparation factors that impact resistivity measurement; their conclusions can be incorporated in standards…

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BMH rolls into in Astec ranks, joining Con-E-Co and RexCon

Astec Industries Inc., Chattanooga, Tenn., has acquired Montreal-based BMH Systems, a concrete plant equipment manufacturer best known for the RollMaster reversing drum mixer. BMH product integration, Astec officials note, provides a comprehensive concrete plant offering in North America, enhances engineering expertise, creates cost synergy opportunities, and delivers a strong platform for Canadian market development. The deal was announced days after…

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NPCA, PCI clarify certification requirements for products and structures

The National Precast Concrete Association and the Precast/Prestressed Concrete Institute have issued a joint document to alleviate marketplace confusion regarding certification programs for precast and prestressed concrete products. The document allows specifiers to easily determine whether products require NPCA or PCI certification, or if either is allowable. The clarification ensures the accurate specification of certification programs, and that all appropriately…

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Jensen Precast StormVault clears high infiltration performance bar

The New Jersey Corporation for Advanced Technology (NJCAT) recently tested and verified an innovative system from Nevada-based Jensen Precast as a Stormwater Manufactured Treatment Device for Green Infrastructure. The producer’s StormVault Biofiltration System with engineered Sierra Blend bio soil media is a nonmechanical, self-operating unit that will function anytime there is flow within the drainage infrastructure.

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Segmental concrete pavement growth evident in ICPI report

The Interlocking Concrete Pavement Institute has released its annual Industry Sales Profile, representing the most accurate and current information publicly available on United States and Canadian segmental concrete pavement shipments. The Profile tracks growth patterns indicative of 100-plus producers running about 250 high-output machines in more than 200 plant locations.

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National Cement parent premiers Carbon8 aggregate processing

Paris-based Vicat Group is on track to commercialize lightweight aggregate derived from a process capturing carbon dioxide-heavy cement kiln emissions. The parent of the National Cement businesses in Alabama and California has signed an agreement with Carbon8 Systems, London, to run a containerized processing system at the Montalieu mill in southeastern France.

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Lehigh issues first EPD based on Cement Product Category Rule 2.0

Lehigh Cement has published the industry’s premier Environmental Product Declarations (EPD) utilizing the new North American Product Category Rule for Portland, Blended, Masonry, Mortar, and Stucco Cements. The Cement PCR 2.0 document enables the flagship business of Texas-based Lehigh Hanson Inc., along with fellow Portland Cement Association and Cement Association of Canada members, to tailor EPD to sustainability and green…

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LafargeHolcim grows EPD library, shrinks concrete, cement carbon intensities

To address calls for streamlining embodied carbon in new construction, Chicago-based LafargeHolcim plans to issue Environmental Product Declarations (EPD) covering shipments from its U.S. Aggregates and Construction Materials (ACM) and Cement businesses. The producer will enlist top auditors, third-party verification specialists and EPD Program Operators to prepare and host a library of declarations abiding the latest criteria for documenting carbon…

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