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Standard models slab mixes' drying behavior

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 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 quick drying is often desirable.”

 

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American Concrete Institute revises formwork benchmark

NS-ACI-150The eighth edition of ACI SP-4(14) Formwork for Concrete Manual includes current standards and practice, removes prior versions’ outdated or irrelevant material, and adds content on new developments in formwork technology and methods.

 

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Cloud collaboration, cost justification enter international code development

Leading to the 2018 International Building Code and International Residential Code, the 2015/2016/2017 Code Development Cycle will be the first full interval to use cdpACCESS, the International Code Council’s cloud-based system for code change proposals and public comment submittals, floor modification submissions and online voting.

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Green Building Standard factors projects’ life cycle carbon, construction equipment idling-rooted diesel emissions

NS-GREENBUILDING-150New requirements to further reduce energy and environmental impacts in buildings’ construction and operating phases—site vehicle idle time thresholds and stormwater management guidelines among them—are detailed in the 2014 version of the green building standard from ASHRAE, the U.S. Green Building Council, and Illuminating Engineering Society.

 

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