Iconic ‘leaf’ bridge wins prestigious architecture award

Lincoln i

Among the winners of the 2019 American Architecture Awards is a 170-ft.-long pedestrian bridge in Lone Tree, Colo. that features a segmental retaining wall abutment and cast-in-place landing and stairs. Denver-based Slaton Bros. Inc. installed the split-face mechanically stabilized earth wall with integral color on the south side approach of the bridge to blend in with its natural surroundings.

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Fire-rated expansion joints

MetaFlex Pro barrier series spans the 2 Hr and 3 Hr, plus Shear and Undermount versions, each designed with the installer in mind. Measured to UL 2079 standards, they meet International Building Code requirements and related tests for fire resistance and protection. Available for floor expansion joints up to 18-in. maximum open conditions, they cover nearly every commercial building application.

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Air compressor


A single-stage, oil-injected rotary screw type portable air compressor, the XAS 950 is powered by a liquid-cooled six-cylinder turbocharged Caterpillar C7.1 Tier 4 Final diesel engine, and offers what product engineers note are simplified maintenance and cost savings by putting the operator in control. Featuring new pressure adjusted through cognitive electronics (PACE) technology, the model matches engine speed, power, and torque, with air demand, resulting in 15-20 percent fuel savings. Additionally, PACE increases the operating range with the ability to cover multiple applications on a single compressor, increasing the unit’s versatility.

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Finfrock tags InfoSight for product identification and tracking


Industrial marking machine, barcoded metal tag and tag printer specialist InfoSight has teamed with Florida precast/prestressed concrete fixture Finfrock to advance plant and field product identification or tracking. Prior to the InfoSight package, the producer had programmed and implemented the Piece Tracker software. It required employees to make several selections through a series of drop down menus to access specific product details.

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Full Circle filter press scales Wells Concrete production demands

Circle i raw

Wells Concrete recently reached a crossroads for managing equipment wash down slurry water at its Albany, Minn., headquarters and flagship precast/prestressed operation. An existing filter press was no longer keeping up with demand, and operated in a separate building a few hundred yards from the main washout location.

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Technology codes concrete environmental data on path to placement

Sources: Xpansiv CBL Holding Group, San Francisco; CP staff

Solidia Technologies, New Jersey-based developer of a portland cement and conventional concrete alternative, is teaming with Xpansiv CBL Holding Group (XCHG) to develop an asset class of tradable digital products that prove “superior environmental provenance” in construction specifications. After third-party verification, data XCHG captures in each step of Solidia Cement and Concrete production and placement will be translated into Digital Feedstock, a proprietary, standardized format combining data science, cryptography and distributed-ledger technologies. 

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Concrete Sustainability Hub looks to economy, environment in decade two

Sources: Massachusetts Institute of Technology; RMC Research & Education Foundation, Portland Cement Association, Alexandria, Va.; CP staff

The Ready Mixed Concrete Research & Education Foundation and Portland Cement Association have marked the Massachusetts Institute of Technology-hosted Concrete Sustainability Hub’s 10th anniversary with a five-year, $10 million commitment and eye to solutions for economic, environmental, and social challenges.

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