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Soft aggregate, sound solution

FF-HwySnd1-150This summer a four-mile stretch of the Dulles Connector Road became the first phase of a larger project in northern Virginia to include ground-mounted sound walls containing SoftSound, a sound absorptive technology. Approximately 277,000 square feet of precast concrete sound wall will be placed on the west side of the roadway between Chain Bridge Road/Route 123 and Interstate 66. The sound walls will mitigate noise from Dulles Connector Road traffic and the new Dulles Metrorail Silver Line extension, which has been constructed at-grade in the median and on elevated rail flyovers along the roadway.

 

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ACI marks a century of architectural concrete pioneer Earley’s work

Meridian Hill ParkSessions at the ACI Fall 2014 Convention, October 26-30, in Washington D.C., will highlight the legacy and distinctive work of John J. Earley, who was the Institute’s first contractor president and served on the Architectural Concrete of the Exposed Aggregate Type Committee during his 28 years of membership.

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Split Decision

FF Knight3A new Knight Transportation site in North Las Vegas, Nev., earned kudos from the Concrete Masonry Association of California and Nevada, which showcased the project in its Profiles in Architecture newsletter earlier this year, and the Cemex employees who produced its concrete masonry units.

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49ers score big with low-carbon footprint facility

The San Francisco 49ers are kicking off the 2014-15 NFL season at a new sustainable stadium thanks in part to West Sacramento-based Clark Pacific as well as Central Concrete Supply Co., a subsidiary of U.S. Concrete. Levi’s Stadium, located in Santa Clara, Calif., is the first LEED Gold certified NFL stadium.The San Francisco 49ers are kicking off the 2014-15 NFL season at a new sustainable stadium thanks in part to West Sacramento-based Clark Pacific as well as Central Concrete Supply Co., a subsidiary of U.S. Concrete. Levi’s Stadium, located in Santa Clara, Calif., is the first LEED Gold certified NFL stadium.

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An enlightened approach to clean water

MSD-max-cropBreckenridge Material delivered 6,000-plus yd. to the Lemay site; Hanson Pressure Pipe shipped 425 ft. of 120-in. PCCP. Metropolitan St. Louis Sewer District’s (MSD) $21.2 million Lemay Wastewater Treatment Plant disinfection facility included construction of a cutting-edge ultraviolet wastewater disinfection system utilizing 3,600 individual UV bulbs and with daily treatment capacity of 240 million gallons of effluent per day—one of the largest such facilities to date.

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