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Admixture prospects help graphene’s gradual emergence

A new article from Boston-based IDTechEX Research, “Graphene: The evolving application landscape,” projects early prototype and semi commercial prototype phases over the next eight to 10 years for concrete, cement and asphalt additives bearing graphene or carbon nanotubes. That observation is consistent with lab or field demonstrations by a handful of admixture developers eyeing performance properties attainable in finished concrete through dosages of nano-scale cylinders with wall thicknesses the diameter of a single carbon atom.

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Clark Pacific panel system optimizes envelope labor and material sourcing

Precast/prestressed producer Clark Pacific, West Sacramento, Calif., presents its new Infinite Panel as a complete building envelope system that redefines how owners and design teams approach façades. It meets or exceeds California Building Standards Code (Title 24) water, vapor, sound and fire code requirements; affords architects and designers flexibility in precast concrete and glazing or window combinations; and, paves the way for owners and design-build teams to take advantage of prefabricated systems for reduced costs, increased efficiency and less risk.

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MIT CSHub researchers explore the effects of moisture and drying on cement

In a National Academy of Sciences paper, researchers at the Massachusetts Institute of Technology-hosted Concrete Sustainability Hub (CSHub) discuss how the porous network of portland cement absorbs water, and propose how drying permanently rearranges the material while leading to potential structural damage.

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Charah, Diversified Minerals team on pozzolan for California market

Charah Solutions Inc. will open a facility using patented grinding technologies to mill supplementary cementitious materials (SCM) at a Diversified Minerals Inc. processing and terminal site in Oxnard, Calif., 60 miles outside Los Angeles.

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Concrete masonry sales pace cement consumption

Year-over-year concrete masonry unit sales for 2017 increased 2.6 percent in the U.S. and 1.9 percent in Canada, according to gray or architectural block and masonry veneer data collected from 44 producers operating 210 plants across the U.S. and Canada, and analyzed in the inaugural National Concrete Masonry Association CMU Sales Survey.

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