TY - JOUR
AU - KASPER, KEN
AB - Technology Monitor MIKE Connacher with Concrete Cleaning has developed an effective and novel method for decontaminating concrete surfaces. Like a double-barrel, 12-gauge shot- gun, steel shot is hurled onto concrete surfaces at very high speeds. Instead of gunpowder, the Centrifugal Shot Blaster (Fig. 1 j accelerates steel shot through operation of a spinning disk. When the time is right, the shot blasts away from the disk directly toward the concrete surface. The resulting collision between the shot and the concrete surface causes the coating and then the underlying concrete to erode. Recovered shot, broken concrete, and plumes of dust resulting from the surface removal are trapped by a shroud and then drawn out of the blasting chamber using a large-capacity, HEPA-filtered vacuum system (Fig. 2). The shroud and the vacuum system result in an operation that is dust free. Spent shot that is still intact is recycled. Concrete debris and unusable shot Fig. 1. Concrete Cleaning’s Centrifugal Shot Blaster. (All figures is removed from the air stream and deposited directly courtesy of Concrete Cleaning System, Inc., 5110 North Ormond, Otis Orchards, Washington, 99027.) into 55-gallon drums. By changing the shot blast flux density (shot per personnel. Being struck by 
TI - CENTRIFUGAL SHOT BLASTER
JF - Health Physics
DA - 1999-03-01
UR - https://www.deepdyve.com/lp/wolters-kluwer-health/centrifugal-shot-blaster-prVw6i0NML
SP - 238–239-238&ndash
EP - ndash;239-238–239
VL - 76
IS - 3
DP - DeepDyve
ER -