3D printing, graphene partners trace rapid building template

A memorandum of understanding sets the stage for GrapheneCA, a New York-based commercial scale producer of graphene, to design an extruder and mixing system that could be embedded into the 3D-printing equipment of Apis Cor Co., San Francisco. Graphene is an advanced carbon agent emanating from nanotechnology and exhibits strong potential as an admixture for high performance concrete.

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Corps, Marines unit proves high volume, large bead 3D concrete printing

Source: Marine Corps Systems Command, U.S. Army Corps of Engineers Construction Engineering Research Laboratory, Champaign, Ill.

Marine Corps Systems Command and 7th Engineer Support Battalion staff joined U.S. Army Corps of Engineers Construction Engineering Research Laboratory (CERL) colleagues earlier this month to test a 3D concrete printing operation with a late model volumetric mixer feeding a 3-in. nozzle. The demonstration was aimed fabricating a bunker and followed barrack and bridge structure printing with a 2-in. nozzle-equipped assembly. 

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Partnership ponders 3D-printed, graphene-dosed mixes

Sources: GrapheneCA, New York; CP staff

A memorandum of understanding sets the stage for GrapheneCA, a commercial scale producer of its namesake compound, to design an extruder and mixing system embedded into the 3D printing equipment of Apis Cor Co., San Francisco. Graphene is an advanced carbon agent emanating from nanotechnology and exhibits strong potential as a high-performance concrete admixture. 

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Sika, celebrity architect BIG team on 3D printing demonstration

Sources: Sika AG, Baar, Switzerland; CP staff

The parent of Sika Corp. is partnering with one of the world’s top architects, Bjarke Ingels Group (BIG), to showcase 3D concrete printing capabilities at the “Formgiving” Exhibition in Copenhagen, Denmark. Running through January 2020 in the architect’s home base, the exhibition focuses on the future of construction and how it shapes the planet. 

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ACI Foundation’s Strategic Development Council brings the future faster

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In the mid-1990s, leaders urged the concrete industry to fundamentally improve itself to meet the challenges of the upcoming millennium. In response to their call, several industry groups developed and implemented strategic plans and initiatives that dramatically changed the entire concrete industry, such as the Ready Mixed Concrete 2000 and Precast Concrete Institute 2010 movements. Supporting these industry-wide initiatives from the start was the work performed by the American Concrete Institute Foundation’s Strategic Development Council (SDC). SDC members resolve issues that often hinder new technology acceptance within the concrete industry. Through SDC’s leadership, the lead time for acceptance of a new idea from its initial proposition to either code acceptance or standard practice can be reduced.

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NASA 3D-Printed Challenge ignites World of Concrete Start-Up Zone

Sources: American Concrete Institute Foundation, Farmington Hills, Mich.; CP staff

The ACI Foundation’s Strategic Development Council (SDC) is the lead sponsor of the Concrete Start-Up Zone, debuting at World of Concrete 2019, January 22-25. Based at Las Vegas Convention Center Booth N153, within the show’s Producer Center, the exhibit will feature emerging technologies and innovations, led by National Aeronautics and Space Administration 3D-Printed Habitat Challenge concepts. Participating teams will discuss the status of their research on 3D printing methods for concrete structures. Additional information on the Start-Up Zone or SDC activities can be obtained from ACI Foundation Assistant Director Tricia Ladely, [email protected]. — www.worldofconcrete.com

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LafargeHolcim, 3D printing specialist aim to commercialize structural elements

Through a partnership with French start-up XtreeE, a developer of large-scale 3D printing systems, LafargeHolcim Ltd. is eyeing commercialization of the first concrete structural element of its kind in Europe. Bringing the digital revolution to construction, the producer notes, 3D printing allows complex geometric structures to be created at a reasonable cost and with shorter production times compared to traditional fabrication. LafargeHolcim has initially pegged three 3D-printed concrete targets: high value-added architecture, affordable housing, and robotics-enabled, precast building element fabrication.

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