Precast concrete products were on the agenda of the 99th annual Transportation Research Board meeting in January in Washington, D.C. Over 12,000 delegates heard presentations in 800-plus sessions addressing multimodal transportation policy and construction practice, including materials and design involving precast/prestressed products. Concrete Products was there and we present this report on new research in precast structures and methods. We will look at TRB 2019 research in cast-in-place concrete later this year. The 100th meeting of TRB will take place January 12-16, 2020. For more information, visit www.trb.org.
Read MoreTag: nanotechnology
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.
Read MoreNanotech-enabled concrete coating quells heat transfer 20+ percent
Sources: Eagle Roofing Products, Rialto, Calif.; CP staff
A leading independent in one of the more specialized areas of manufactured concrete, Eagle Roofing continues regional rollout of Platinum Tile, whose patented, penetrating coating acts as a thermal insulator to reduce heat transfer into and out of a structure. Applied to freshly extruded tile, the coating is a product of nanotechnology, where measurements tend to billionths of a meter.
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