High Strength is achieved by the centrifugal casting process and the use of prestressed strand. This process compacts and increases the already substantial strength of our concrete, enabling Newmark's spun concrete poles to be designed to support the same loads as steel poles. Prestressed strands significantly increase strength and cracking capacities, providing ultimate moment capacities far beyond those found in non-prestressed static cast alternatives. Newmark spun concrete poles, in service extensively throughout Florida, weathered sustained winds of 145 mph and gusts exceeding 200 mph without a single failure when Hurricane Andrew hit South Florida in 1992. Low lifetime costs of spun concrete poles result from the economics of concrete, easier installations and virtually no post-installation maintenance.
Direct burial is used extensively, significantly reducing installation costs.
There is no rusting or rotting to monitor, and replacements and patches are not needed. These factors provide a much better return on your investment over the long-term. Patented splice joints enable Newmark to manufacture its spun concrete poles up to 180 feet in length. The use of the splice joint provides a far more easily assembled and economical connection between pole sections than traditional flange splices, although flange splices are available for applications with special requirements.