Skanska has expanded its use of zero-emission electric equipment on its project to extend a Los Angeles subway line, becoming one of the first in North America to deploy Hamm’s new battery-powered HD 12e VV compact roller.
The company, which is part of the design-build team on the $2.9 billion Section 1 of the West Side Purple Line Extension, reports that it is operating one of the five pre-production models in North America of the tandem-drum vibratory compactor. It is among the first all-electric compactors to be used on an ongoing U.S. project, Skanska adds.
Skanska was also among the first to be involved in a pilot of Volvo’s 23-ton EC230 Electric excavator. The 90-day pilot concluded in February, with Skanska reporting a 66% reduction in per-hour carbon and a 74% reduction in costs per hour.
“There were additional benefits from a health and safety aspect,” Skanska said. “The electric excavator generated much less vibration and noise than a diesel-powered version.”
Sunbelt Rentals provided both the EC230 Electric and the Hamm HD 12e VV.
Both drums on the 2.8-ton Hamm HD 12e VV vibrate. The tandem roller is powered by a 48-volt lithium-ion battery with a 23.4 kWh capacity. It has a compaction width of 48 inches.
