Concrete Products

AUG 2018

Concrete Products covers the issues that attract producers of ready mixed and manufactured concrete focusing on equipment and material technology, market development and management topics.

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38 • August 2018 An ASTM member since 1993, Parker received the C09 Service Award in 2006; Honorary Committee Member Award in 2014; and, Award of Appreciation in 2008 and 2012. In addition to C09, he is also a member of ASTM Committees C01 on Cement; D04 on Road and Paving Materials; and, S02 on Technical Committee Operations. He arrived at Rockwall, Texas-based Chryso after Nevada Cement Co., RMC Mid-Atlantic and Trinity Materials positions, and holds a bachelor's in wildlife biology from Montana State University and master's in geology and geophysics from the University of Wyoming. ASTM Committee C01 on Cement pre- sented it top annual recognition, Award of Merit and title of Fellow, to Argos USA Cement Technical Director Stephen Wilcox for contribution to developing standards surrounding cementitious materials and concrete. An ASTM member since 1995, he received the C01 Award of Appreciation in 2013 and 2017, and also serves on Committee C09 on Concrete and Concrete Aggregates. Wilcox transitioned to Atlanta-based Argos USA from predecessor Lafarge North America, where he had a long management track record in quality, optimization and technical capaci- ties. In addition to ASTM, Wilcox is a member of the Portland Cement Association, Slag Cement Association, and American Concrete Institute. Separately, ASTM International's new Spec- Builder platform empowers organizations to streamline collaboration and document develop- ment for internal specifications, test methods, guidelines, and procedures. Available as a sub- scription, it provides a single platform to ensure organizations' drafts, comments, votes, and sup- porting documents are uploaded, acted on, and archived within a single secure tool. Users can manage changes to documents; revise multiple documents simultaneously; accelerate voting processes; hyperlink to standards; improve communications; and, securely store and restart projects. — specbuilder_new ASTM Committee C15 on Manufactured Masonry Units will soon publish C1825, providing guide- lines for block and brick made from materials not currently addressed by existing Society standards. The new standard responds to unit masonry producers' move to look beyond concrete, clay, shale, sand-lime and calcium silicates for alternative materials. "This standard will hopefully spur inno- vation in masonry unit manufacturers, with consistent and reliable performance of the new units in the field," says University of Louisville Civil Engineering Professor William McGinley. — ASTM Customer Relations, 877/909-ASTM; ASTM Committee A01 on Steel, Stainless Steel and Related Alloys is eyeing a standard aimed at improving durability of strand used in (PT) post tension or bridge stay cable applications, principally through galvanized-product test methods. The proposed document would help gauge corrosion potential and a structure's durability throughout its life cycle. Bekaert Corp. Engineering and Product Development Manager Dale King notes that zinc and zinc alloy galvanization has been used for many years to improve steel corrosion durabil- ity of structures while also increasing the life cycle of the other steel components. "Applying galvanization to the reinforcement PT elements in these systems is economical and improves corrosion durability, potentially adding years of safe performance to a structure's life," he says. "This standard would also apply to other PT applications such as parking garage barrier cables or storage tank wall reinforcement." Constructors, designers, public agencies, and reinforcement manufacturers are among those BRIEFS ACTIVITIES & APPOINTMENTS Conventional sweep elbow blowouts cause ongoing system shutdowns. 45° and 90° elbows available in diameters from 1.25 to 18 inch, with flanges and socket-weld ends in tube, Schedule 10/40 and Schedule 80 pipe, in cast iron, carbon steel, aluminum, stainless steel and specialized alloys depending on diameter. ABRASIVE CONCRETE MATERIALS BLOWING OUT YOUR PNEUMATIC CONVEYING ELBOWS? Prevent elbow failure by preventing material impact Unlike conventional "impact" elbows and "plugged-tee" elbows that rely on material impact to change direction, HammerTek's Smart Elbow design features a spherical chamber that protrudes partially beyond the desired 90º or 45º pathway. This causes a ball of material suspended in air to rotate— in the same direction as the air stream that powers it—gently deflecting incoming material around the bend without hitting the elbow wall. ® Ask for a Free, No-Risk Trial Offer 1-610-814-2273 Prevent elbow wear, blow-outs, recurring maintenance and shutdowns once and for all with Smart Elbow ® deflection elbows from HammerTek ® Lime, clay, sand, alumina, iron oxide, fly ash, granite, cement, shale, slag, clinker, cinders, aggregates and other abrasives wear through conventional sweep elbows because material must hit the elbow wall at high speed to change direction. Instead, the Smart Elbow design gently deflects material around the bend without impacting the elbow wall, providing concrete producers with three important benefits: Virtually no elbow wear, blowouts, replacement costs or related downtime Virtually no material degradation, reducing dust generation Reduced space requirements—about 40% shorter than sweep elbows 1 2 3 Smart Elbow deflection elbows at concrete plants still going strong after 15 years. EE-1024

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