THREE TESTS OF FIREHOSING TECHNIQUE AND EQUIPMENT FOR THE REMOVAL OF FALLOUT FROM ASPHALT STREETS AND ROOFING MATERIALS
NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CA
Pagination or Media Count:
The report describes three separate firehosing experiments. Each employed radio-traced simulant in order to measure removal effectiveness. It was concluded that 1 Effectiveness of reclamation by firehosing improves as surface roughness decreases and particle size increases. 2 Removal effectiveness improves with effort, but the residual mass is not significantly reduced after the second pass. 3 The flare nozzle is consistently more effective than the fire nozzle in cleaning roof surfaces. This is not the case for paved surfaces. 4 Results from full scale tests show that the removal effectiveness can never equal that achieved under the less realistic operating conditions represented by smaller engineering-scale tests. 5 RN2 exposure reduction factors are not significantly affected by surface roughness, particle size or mass loading.
- Miscellaneous Materials
- Nuclear Radiation Shielding, Protection and Safety