Organizations – November 2023

The National Steering Committee (NSC) for the Concrete Industry Management program has appointed three new officers: Chairman Karl Watson, Jr., Baker Construction Enterprises chief executive officer; Vice Chairman Steven Cox, Command Alkon vice president – Customer Success; and, Secretary/Treasurer Nicole Maher, National Ready Mixed Concrete Association chief operating officer.  Joining them on the NSC Board are newly appointed directors Maschmeyer…

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Standard indicates pre-, post-peak tensile properties of fibrous specimens

A proposed ASTM International standard, WK 73384, New Test Method for Evaluating the Tensile Performance of Fiber-Reinforced Concrete Using Cylindrical Specimens with Double-Punch Loading, holds the potential to open conventional fiber-reinforced and ultra-high performance concrete (FRC, UHPC) to a broader range of engineered construction conditions. The document is under ASTM Committee C09 on Concrete and Concrete Aggregates balloting and the…

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National Science Foundation funds Roman concrete investigation

A researcher at Missouri University of Science and Technology, Rolla, is looking to solve the problems of tomorrow by using chemistry from the distant past. Assistant Professor of Chemical and Biochemical Engineering Dr. Monday Uchenna Okoronkwo is investigating how to mimic the chemistry and composition of ancient Roman concrete while also applying modern technology to make today’s slabs, structures and…

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Standard gauges fibrous concrete pre-, post-peak tensile properties

Sources: ASTM International, West Conshohocken, Pa.; CP staff ASTM C09 Committee on Concrete and Concrete Aggregates’ WK 73384, New Test Method for Evaluating the Tensile Performance of Fiber-Reinforced Concrete Using Cylindrical Specimens with Double-Punch Loading, could open conventional fiber-reinforced and ultra-high performance concrete (FRC, UHPC) to a broader range of engineered construction conditions. The proposed standard is under full committee…

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C09 subcommittee pens wide-ranging SCM performance specification

Sources: ASTM International, West Conshohocken, Pa.; CP staff ASTM Committee C09 on Concrete and Concrete Aggregates is balloting WK70466, New Specification for Supplementary Cementitious Material for Use in Concrete, covering a broad range of binders and offering a better method of gauging their potential than ASTM C618, Standard Specification for Coal Ash and Raw or Calcined Natural Pozzolan for Use…

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ASTM C09 eyes standard for fiber reinforced concrete tensile strength

Sources: ASTM International, West Conshohocken, Pa.; CP Staff ASTM Committee C09 on Concrete and Concrete Aggregates aims to provide data enabling the engineering community to evaluate fiber performance through WK60666 New Practice for Direct Tension Testing of Fiber Reinforced Concrete, a proposed standard presently in the working phase. 

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ASTM Center schedules Digital Construction Roadmapping session

Sources: ASTM International, West Conshohocken, Pa.  The ASTM Additive Manufacturing Center of Excellence (AM CoE) will host a January 25-26 workshop to support the development of a “Roadmap for Advanced Technologies for the Digitalization of the Construction Industry.” The National Institute of Standards and Technology-sponsored event will take place at ASTM headquarters outside Philadelphia.  The agenda calls for brainstorming sessions…

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ASTM advisory report samples field of 3D printing, additive construction

ASTM International-aligned advisory Wohlers Associates of Fort Collins, Colo. has released Specialty Report: Building an Additive Construction Future, covering a rapidly growing market segment fueled by additive manufacturing and 3D printing developments. “ASTM International sees additive construction as the next frontier,” notes Market Intelligence Head Terry Wohlers. “To gain a view of what is ahead, it is important to understand…

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ASTM International, ACI’s NEU team on low carbon concrete

Sources: ASTM International, West Conshohocken, Pa. A just-signed memorandum of understanding will see ASTM International and NEU, An ACI Center of Excellence for Carbon-Neutral Concrete, work to lower the carbon footprint of concrete in the built environment and minimize redundant efforts toward that goal. The organizations jointly plan to: • Foster and support technologies for cast-in-place and manufactured concrete;• Develop, promulgate,…

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Organizations – September 2022

The National Ready Mixed Concrete Association Developing Industry Leaders group is gathering producer member data to benchmark the industry’s returned concrete transfer and process spend. Compiled figures will inform a “Cost of Returned Concrete Calculator,” posted at www.nrmca.org and equipping users to compare handling process outlays based on industry averages. Assisting NRMCA Vice President, Technical Services Karthik Obla in the…

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