Better Roads

December 2013

Better Roads Digital Magazine

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Page 18 of 76

Bomag Bomag's BW138AD tandem roller is powered by a Tier 4 Interim 45.3horsepower, water-cooled Kubota diesel engine, has the Bomag's Economizer technology as an option. The Economizer uses an acceleration sensor to measure stiffness of the material across the compacted material and then displays the data using a series of 10 yellow LED lights on the roller's instrument panel. Volvo Construction Equipment Volvo Construction Equipment's DD110B asphalt compactor, which replaced the DD90, features larger drums, more amplitude, higher frequency, increased centrifugal force and more water storage than its predecessor. Volvo also included an operator system with a six-way adjustable seat, tilt steering wheel, instrument cluster and ROPS canopy. This compactor has three drum options: 2 amplitude high frequency, 8 amplitude high frequency and 8 amplitude high frequency and altitude. Case Construction Equipment Case Construction Equipment's DV Series – DV23, DV26, DV36 and DV 45 – replaces the DV201, DV202 and DV204. The series is designed for applications such as paving parking lots, bike paths, tennis courts and other small- to medium-sized projects. The DV Series rollers have drum widths ranging from 39 to 54 inches and operating weights ranging from 4,960 to 10,295 pounds. Cat Paving Products The Cat Paving Products Guide to Soil Compaction released as a companion to the Cat Paving Products Guide to Asphalt Compaction, giving agencies and contractors a combination of fundamental lessons and real-world jobsite tips. The book also features more than 100 photographs and illustrations and provides information on soil types and classifications, application and quality control. Better Roads December 2013 17

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