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Clean-diesel proponent confirms fuel economy, environmental merits of SCR

Source: Diesel Technology Forum, Frederick, Md.

Growing adoption of clean diesel systems utilizing Selective Catalytic Reduction (SCR) technology is reducing emissions and increasing fuel efficiency in heavy-duty trucks and smaller vehicles, according to Diesel Technology Forum Executive Director Allen Schaeffer.

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Industry-Wide EPD for ready mixed premiers at 2014 Greenbuild

Source: National Ready Mixed Concrete Association, Silver Spring, Md.

With the U.S. Green Building Council’s Greenbuild Conference & Expo as a backdrop, NRMCA announced publication of environmental impacts for concrete to help members address the movement toward product transparency in the LEED v4 project rating system. The Industry-Wide (IW) Environmental Product Declaration (EPD) and Benchmark (Industry Average) Report span a wide range of mix designs from materials sourced across the country.

Read more: Industry-Wide EPD for ready mixed premiers at 2014 Greenbuild

Durability top of architects’ mind on green building product scale

Source: PPG Industries, Pittsburgh

A survey of 600-plus architects representing a cross-section of job titles, experience, firm sizes and geographic locations finds durability, environmental product declarations and independent product certifications the most important attributes for green building specifications.

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Engineer-friendly ACI 318-14 debuts after code’s exhaustive reorganization

Sources: American Concrete Institute, Farmington Hills, Mich.; CP staff

Gathering in Washington D.C. for its fall convention, ACI officially released the completely reorganized ACI 318-14: Building Code Requirements for Structural Concrete, to be referenced in 2015 International Building Code.

Read more: Engineer-friendly ACI 318-14 debuts after code’s exhaustive reorganization

Test models concrete mixtures’ drying behavior, augments slab specs

Source: ASTM International, West Conshohocken, Pa.

Newly published ASTM C1792, Test Method for Measurement of Mass Loss Versus Time for One-Dimensional Drying of Saturated Concretes will enable engineers and producers to characterize how hardened mixtures dry. “The information provided can be used to directly assess the drying rates of a given concrete mixture,” says ASTM member Dale Bentz, chemical engineer for the Materials and Structural Systems Division in the National Institute for Standards and Technology Engineering Laboratory. “[It] could be valuable for industrial flooring applications, for example, where a quick drying is often desirable.”

Read more: Test models concrete mixtures’ drying behavior, augments slab specs