Concrete Products

JAN 2014

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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Page 34 of 67

FEATURE CAROLINA SUNROCK 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. January 2014 • 33

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