ASTM C01/09 symposium to cover cement, concrete, 3D printing

Sources: ASTM International, West Conshocken, Pa.; CP staff ASTM Committees C01 on Cement and C09 on Concrete and Concrete Aggregates are sponsoring the virtual Symposium on Standards Development for Cement and Concrete for Use in Additive Construction, December 7-8. Using the WebEx platform, committee members will present potential 3D-printed mortar or concrete test methods that can be standardized through ASTM…

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Quikrete continues expansion into 3D printing with housing demos

On the heels of a cooperative research and development agreement with the U.S. Department of Energy’s Oak Ridge National Laboratory to design next-generation concrete mixes ideal for printable construction of large-scale structures or components, Atlanta-based Quikrete Companies is branching out further into the 3D-printing process with its latest partnership.

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Concrete printing specialist to keynote Building Sciences conference

Sources: National Institute of Building Sciences, Washington, D.C.; CP staff

The U.S. Department of Commerce’s National Institute of Building Sciences has replaced its planned Washington, D.C. conference this summer with Building Innovation 2020: Virtual Edition, billing the August 18-19 program as “a powerfully compact event, focusing on technology, workforce, resilience and Covid-19.”

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LafargeHolcim, GE unit team on 3D-printed wind turbine pedestals

Sources: LafargeHolcim Ltd., Zurich; CP staff

The latest target in a LafargeHolcim investigation of 3D-printed concrete elements or structures is a pedestal for a new class of turbines, 150-200 meters high, that have the potential to harness one-third or more energy than the shorter towers dotting wind farms the world over.  

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SWEET SUCCESS

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Gate Precast turns to 3D-printed forms for ‘sugar crystal’ façade

A towering mixed-use structure with a unique façade in Brooklyn’s Williamsburg neighborhood has not only changed the New York City skyline, but has shown the transformative possibilities of 3D-printed concrete formwork. Thanks to a collaboration with the U.S. Department of Energy’s (DOE) Oak Ridge National Laboratory in Tennessee, Jacksonville, Fla.-based Gate Precast Co. was able to bring the intricate design of One South First’s “sugar crystal” exterior to life as well as provide a major step forward for architectural precast.

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Quikrete extends 3D printing reach in housing unit demonstration

Source: Quikrete Companies, Atlanta

Quikrete and California-based Contour Crafting Corp. have entered into a collaboration to develop proprietary concrete used in the automated construction of residential, commercial, industrial and government structures using the latter’s technology. Following comprehensive testing at an independent accredited lab at the University of Southern California to confirm ICC-ES AC509 compliance—a building code spearheaded by CC Corp.—the 3D printing process will be used to construct four low-income housing units as part of a demonstration project sponsored by the Los Angeles County Development Authority.

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Quikrete, Oak Ridge Lab team on 3D-printed concrete R&D

Sources; Quikrete Companies, Atlanta; CP staff

Quikrete and the U.S. Department of Energy’s (DOE) Oak Ridge National Laboratory, Tennessee, have entered a cooperative research and development agreement to design next-generation concrete for production of large-scale structures or elements through a 3D printing process. Using an Oak Ridge-developed additive manufacturing system, the two-phase, two-year collaboration will target specially-formulated mixes spawning new construction capabilities.

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Robotics specialist cites 3D-printed concrete home milestone

CC011020 Home

Sources: SQ4D Inc., Patchogue, N.Y.; CP staff

An industrial and consumer 3D-printing equipment developer reports completion of the world’s largest permitted project of its kind to date: A three-bedroom home whose foundation, exterior walls and interior partitions were printed in 48 hours over a six-day window at a cost below $6,000. SQ4D deployed its Autonomous Robotic Construction System (ARCS) for the 1,900-sq.-ft., Calvern, N.Y. project.

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3D printed concrete technology team turns to wind energy structures

Sources: Accucode Inc., Denver; CP staff

A $250,000 infusion from the Colorado Office of Economic Development and International Trade’s Advanced Industries Accelerator Grant Program will position Boulder-based concrete construction specialist RCAM Technologies and technology integrator Accucode Inc. to develop wind energy components using 3D printing methods. 

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Manufacturer scales mortar mixer for 3D printing

CC120519 Zoom

Source: Zoomlion Heavy Industry Science & Technology Co., Ltd., Shanghai

Zoomlion subsidiary m-tec has announced the availability of the Duo-mix mortar mixer in North America, Europe and Asia. The adaptable machine is designed especially for mortar used in 3D construction printing. It can process all standard dry mortar products ranging from bagged or silo to bucket coat material up to a grain size of 4mm.

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