PHOTOS: Concrete Products
Installation of the Liebherr DW 4.5 twin shaft mixer at the North
Raleigh plant has relieved trucks from most mixing duty, while positioning Carolina Sunrock to optimize cement usage; reduce vehicles' peak production yard time toward 10 minutes; and, competitively bid orders for roller compacted concrete pavement. RCC
mix production capability is a natural for Carolina Sunrock, which
has integrated ready mixed and asphalt production at three of six
central-east North Carolina sites. A removable chute will allow fast
dump truck loading for RCC or conventional concrete pavement jobs.
The twin shaft mixers equip the North Raleigh and Durham (opposite page) plants for 180 yd./hour output. Carolina Sunrock mechanics and welders tackled much of the installation work at each
site over 10 days. The use of a twin shaft model is less likely to
require alley reconfguration than tilt drum equipment most often
used for central mixed plants. Carolina Sunrock converted North Raleigh and Durham without alley work; a tilt drum mixer installation
at the latter plant would have been more costly and complicated
than the twin shaft model selected.
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