Sources: Summit Materials Inc., Denver; CP staff Summit Materials’ Missouri subsidiary, Continental Cement Co. LLC, has consummated a full conversion from clinker-only to portland-limestone cement output at its Hannibal plant— four months after a similar transition at a sister mill up the Mississippi River in Davenport, Iowa. The PLC is typically finished at a 90/10 clinker and ground limestone blend. …
Read MoreDay: August 22, 2022
Montana code officials move first to view 3D-printed, block walls equally
Sources: Apis Cor, Melbourne, Fla.; CP staff Montana building code regulators are the first among U.S. state peers to approve 3D-printed concrete or cementitious mortar layers as an equal replacement for concrete masonry units in load-bearing walls. Montana native and Billings general contractor Tim Stark secured a nod to use Apis Cor printing technology for housing developments, confident the equipment…
Read MoreEPA tour closes in on Clean Water Act 50th anniversary
Sources: U.S. Environmental Protection Agency; CP staff EPA Assistant Administrator for Water Radhika Fox recently joined agency colleagues, state and local officials to kick off the Clean Water Act 50th Anniversary celebration tour. Culminating in mid-October, it will highlight waters that are essential to healthy people, vibrant ecosystems, agricultural productivity, and economic growth, with stops including the Florida Everglades, Chesapeake…
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