01. Steel deck design manual
The Steel Deck Institute (SDI) published the First Edition of the SDI Steel Deck on Cold-Formed Steel Framing Design Manual, which complies with the requirements of the SDI Design Standards incorporated into the 2018 International Building Code. The design and use of steel deck on cold-formed steel framing is similar to deck supported on open web steel joists or rolled beams, but there are some critical differences. The manual points out those differences and provides design guidance necessary to enable steel deck to be properly used in this application. The 241-page manual, available as a free PDF download from the SDI website, features applications for steel floor and roof deck, including diaphragms, commentary, seven design examples, diaphragm tables, and fastener properties.
Steel Deck Institute
02. Sound wall panels
Smith-Midland Corporation received a contract to supply 900,000 square feet of SoftSound noise absorptive precast concrete sound wall panels for the I-66 Outside the Beltway Express Lanes project in Northern Virginia. SoftSound, an Easi-Set Worldwide licensed product, is a proprietary material molded and compressed to meet the desired technical and aesthetic requirements, providing superior sound absorptive technology, the company said. It combines a highly specialized mineralized aggregate with cement as a binder in a specific and exacting manufacturing process. Once installed, SoftSound surpasses other products for sound absorption, durability, strength, and moldability, according to Smith-Midland.
03. Corrosion inhibitor
Cortec’s Migratory Corrosion Inhibitors (MCI) form a protective layer on the surface of steel reinforcement embedded in concrete, delaying initiation of corrosion to extend the life cycle of structures. MCI corrosion inhibitors are available in many forms for all types of construction — admixtures for new concrete, repair mortars, and grouts; topical treatments; injectable products; and many specialty formats. Cortec’s green MCIs are natural organic compounds obtained from biobased materials. The latest generation is based on amine carboxylates technology, which includes fermentation products of sugar beets. MCI products conform to EN 1504, the new EU Standard for the protection and repair of reinforced concrete.