Sharp Water

Significant cost, labor, and time savings, along with quality, environmental, and safety enhancements, could be introduced into the process of retrofitting the United States' concrete highways with load transferring dowel bars by using a new, patented technology. Waterwerks Inc.'s Simply Complex machine prototype uses an array of precision-controlled water-blast nozzles. Estimates say the water-blasting technique could reduce cutting and cleaning concrete slots in dowel bar retrofitting projects by more than half, from the current average of $34 per slot to just $16.25 per slot. Using off-the-shelf microprocessor-based industrial controls programmed to enable cutting of precise slots straddling two adjacent wheel paths in the concrete pavement by the machine operator is key to the water-blasting operation. Washington State Department of Transportation has seen a demonstration of the prototype, and offered suggestions for improvement as well as endorsement of the technique.


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Filing Info

  • Accession Number: 01150640
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 12 2010 4:35PM