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