Corps of Engineers issues global license for its patented UHPC

Sources: Cor-Tuf, Manassas, Va.; CP staff

Cor-Tuf UHPC has secured a worldwide license for production of U.S. Army Corps of Engineers-patented ultra-high performance concrete, which develops up to 28,000 psi compressive and 2,700 psi tensile strengths. The Corps researched and formulated the product (US patent No. US 8016938 B2) to address the Defense Department’s demand for a strong, resilient material suited to blast- or intrusion-prone personnel and weapons facilities.

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Mixed signals: Commercial project volume vs. overall economy

Sources: Associated Builders and Contractors, Washington, D.C.; CP staff

The Associated Builders and Contractors monthly Construction Backlog Indicator (CBI) of nonresidential building activity expanded to 9.5 months in March 2019, up 0.7 months or 8.8 percent from the prior month, when it stood at 8.8 months and hovered its highest level in series history. 

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Solidia patents carbon-centric hollow core, pervious, aerated product methods

Sources: Solidia Technologies, Piscataway, N.J.; CP staff

Three recently issued U.S. Patent and Trademark Office patents cover processes and products based on Solidia Technologies’ cement and carbon-curing materials and methods. The U.S. Patents are designated 9,878,951, “Hollow-Core Articles and composite materials, methods of production and uses thereof;” 9,938,189, “Pervious composite materials, methods of production and uses thereof;” and, 9,963,392, “Aerated composite materials, methods of production and uses thereof.”

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Life cycle-attuned Institute updates Impact Estimator for Buildings

Sources: Athena Sustainable Materials Institute, Ottawa; CP staff

The Athena Institute includes updates for concrete masonry and ready mixed concrete in the just-released version 5.4 whole-building life cycle assessment (LCA) software tool, Impact Estimator for Buildings. The software models any building type at any point in the design stage and eases side by side comparison of material specifications and methods. It also helps users reduce projects’ environmental impact, earn the LCA credit in LEED green building rating system, or report embodied carbon.

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Rockin’ views


Sound Hotel Belltown, Tapestry Collection by Hilton, is woven into the fabric of a vibrant, centrally located Seattle neighborhood. It occupies the first 10 floors of the new 42-story, Arrivé tower, one of the market’s first mixed-use properties. The structure has requisite reinforced concrete construction, including exposed columns whose smooth finishes suggest self-consolidating mixes.

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Trailer gear lubrication

True Lube Landing Gear Grease is formulated specifically for Holland equipment to maintain the optimized performance through: wide operating temperature range, 40°F to 150°F, ensuring crank operation; high formula stability, providing consistently smooth operation; corrosion and oxidation protection; oil bleed control, reducing oil leaks and preventing grease hardening; salt water resistance enabling lasting service in harsh coastal environments; anti-wear and load carrying properties to curtail gear and screw damage under heavy loads; and, high-tech formula for optimal efficiency.

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Portable air compressor

250 i

A single-stage, oil-injected, rotary screw portable compressor, the CPS 250 features cognitive electronics (PACE) technology with which the operator can control machine pressure. The new intuitive XC2003 controller is coupled with PACE functionality and adjusts the pressure in 2-psi increments. The operator can also toggle between two predefined set points. In addition to the new controller, product engineers increased the operating range of the compressor in the 100-150 psi range, making the machine more versatile and user friendly.

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Revolution pump boom reaches new maneuverability, speed benchmarks

New boom technology holds the potential to take the concrete pumping business to new levels, Schwing America contends. The Revolution boom on the S 36 X truck-mounted concrete pump offers what company engineers note are unmatched maneuverability and speed, with continuous 360-degree articulation of the tip section and 330-degrees of third section articulation. Hydraulic motors replace the last two cylinders of the four-section boom to provide the additional coverage.

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Emergency equipment shut off

The Model PC is a rugged safety stop control, actuated by a pull cord and providing a quick positive shut off of conveyors and other powered plant equipment. The device’s one or two microswitch outputs can control up to two separate circuits, depending on the model chosen, and include one for machinery shutdown, one for alarm. The Model PC was developed to meet stringent safety agency requirements throughout the world.

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