ACI 133 to help federal agency investigate Florida tower collapse

Sources: American Concrete Institute, Farmington Hills, Mich.; CP staff ACI Committee 133 on Disaster Reconnaissance will coordinate a team to assist National Institute of Standards and Technology (NIST) structural engineering experts study the progressive failure of a 12-story reinforced concrete structure, Champlain Towers South, in Surfside, Fla. ACI Executive Vice President Ronald Burg cited the action in a statement on…

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Engineer publicizes 2018 assessment of failed Florida condo tower

Sources: Morabito Consultants, Sparks, Md.; CP staff An October 2018 inspection report offered a cautious take on structural concrete conditions at the Champlain Towers South Condominium Association’s Surfside, Fla. property: A 12-level building whose collapse in the early a.m. hours of June 24 has triggered a massive search and rescue effort for more than 100 persons. 

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Basalt rebar clears mechanical, physical property gauges at Sherbrooke

Source: Basanite Industries, LLC, Pompano Beach, Fla.  Basanite Industries reports successful completion of testing to prove the concrete reinforcing potential of BasaFlex, a family of basalt fiber reinforced plastic bar products offering practitioners a lightweight, corrosion resistant alternative to conventional steel reinforcement. 

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NRMCA research finds cause to revisit ACI 318 chloride limits

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

In collaboration with Dr. Neal Berke of Kalamazoo, Mich.-based Tourney Consulting Group, NRMCA has completed research to a) establish a relationship between the calculated total (initial) chloride content and measured water-soluble chloride content in hardened concrete; and, b) potentially give ready mixed producers latitude in mixture adjustments on projects bound by ACI 318 Building Code Requirements for Structural Concrete.

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Structural, thermal mass add up to data center protection

Cemex i

St. Louis-based Ascent LLC, a builder and operator of highly secure data centers is promoting its latest facility on the strength of mass, reinforced concrete: 15-in. walls and a 13.5-in. roof enclosing 42,600 sq. ft. of space. Dubbed DAL1 for its Dallas-Ft. Worth metroplex proximity, the new Plano, Texas, facility is built to withstand exposure to 360-mph winds, well above the National Weather Service’s 200-mph threshold for (Enhanced Fujita Scale) EF5 tornadoes.

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