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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. 

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

EPA leaves sound regulations underpinning SPCC plans alone

Sources: Environmental Protection Agency; National Ready Mixed Concrete Association, Silver Spring, Md.; CP staff

After more than three years of soliciting expert advice and public comment on issuing a proposed rulemaking potentially expanding the petroleum product spill prevention, control and countermeasure (SPCC) terms typical of concrete plant environmental permits, EPA Administrator Andrew Wheeler signed a final action establishing no new regulatory requirements under the Clean Water Act (CWA). 

Read more: EPA leaves sound regulations underpinning SPCC plans alone

Report ranks states by highway cost efficiency, from N.D. to N.J.

Sources: Reason Foundation, Los Angeles; CP staff

The Annual Highway Report from public policy think tank Reason Foundation finds that the nation’s highway conditions are deteriorating, especially in a group of problem plagued states struggling to repair deficient bridges, maintain Interstate pavement and reduce urban traffic congestion. In descending order, the respective leaders and laggards are North Dakota, Virginia, Missouri and Rhode Island, Alaska, New Jersey.

Read more: Report ranks states by highway cost efficiency, from N.D. to N.J.

Brickworks builds Glen-Gery brand with $32M Sioux City deal

Sources: Brickworks North America Corp., Wyomissing, Pa.; CP staff 

Brickworks North America, the recently established parent company of clay masonry mainstay Glen-Gery Corp., has closed on Iowa-based Sioux City Brick, a family-owned operator since 1913. The $32 million transaction brings three production lines across two plants, with capacity upward of 160 million brick, plus five retail distribution outlets and exclusive U.S. distribution rights to the Feldhaus thin brick system.

Read more: Brickworks builds Glen-Gery brand with $32M Sioux City deal

Foundation guides industry to the next concrete pavement frontier

Sources: Ready Mixed Concrete Research & Education Foundation, Silver Spring, Md.; CP staff

Looking beyond roads, streets, parking lots and traditional flatwork, the RMC Research and Education Foundation’s latest publication responds to an emerging pavement market opportunity for ready mixed concrete producers. The 36-page Guide to Concrete Trails covers project background and funding; choice of concrete versus alternative paving materials; design and engineering; concrete mix designs, delivery and placement; paving machinery and slab finishing methods; plus, jointing, curing and maintenance. 

Read more: Foundation guides industry to the next concrete pavement frontier