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NCMA endorses ACI Masonry Testing Technician references in key TMS specs

The Masonry Society’s TMS 402/602-16: Building Code Requirements and Specifications for Masonry sets new technician requirements to reinforce quality control measures surrounding concrete or clay units, mortar, grout and prism or scaled-wall specimen testing. Contractors, engineers or owner’s representatives can meet the requirements, published in December 2016, by enlisting ACI-certified Masonry Testing Technicians.

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Strong returns spur investor’s sale of Rocla Tie to German rail specialist

Vossloh AG of Werdohl, Germany, has closed on Denver-based Rocla Concrete Tie Inc., the leader in prestressed concrete railroad and turnout ties for Class I, commuter passenger, transit authority and industrial lines. Seller Altus Capital Partners II L.P., a Wilton, Conn., private equity firm, had held Rocla Concrete since mid-2013.

Read more: Strong returns spur investor’s sale of Rocla Tie to German rail specialist

Ultrasound enters non-destructive testing practice

From the Technical University of Munich … Engineers who want to investigate the stability of a bridge without cutting into it are in the same position as a doctor seeking a full picture of a patient’s health without resorting to a scalpel. They now have a non-destructive testing (NDT) technique that gives a precise picture of the inner world of objects combining a computerized model and experiment.

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Nanotechnology reveals carbon’s full performance potential in concrete

Littleton, Colo.-based EdenCrete Industries enters 2017 ramping up production of a liquid admixture that has demonstrated in field trials and early commercial applications a capacity to strengthen concrete at levels sufficient to reduce rebar and portland cement requirements. Dosed at 0.25 gallon to 4 gallons per cubic yard, which typically equates to approximately 3 ounces to 130 ounces per 100 lbs. of cementitious material, the EdenCrete admixture embodies quintillions (one million trillion) of carbon fiber-like tubes, or nanotubes, per gallon. EdenCrete Industries has developed a method to safely transfer carbon nanotubes in admixture form to concrete customers without any risk of health concerns; the resulting product dictates packaging solely in liquid form.

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Martin Marietta arrives first as NRMCA reaches system level EPD plateau

Martin Marietta Materials is the first producer member to use National Ready Mixed Concrete Association’s new system level Environmental Product Declaration (EPD) verification program, oriented to transparency credits in LEED v4 and other green building standards. The program meets strict international standards but streamlines EPD verification: Rather than a fixed set of product-specific EPD, it verifies the software used to generate a concrete mix’s environmental impacts. Hence, producers can tender new product-specific EPD as needed for each project.

Read more: Martin Marietta arrives first as NRMCA reaches system level EPD plateau