Accession Number:

AD0642759

Title:

PHYSICAL DECONTAMINATION OF PAINTED CONCRETE SPECIMENS

Descriptive Note:

Memorandum

Corporate Author:

NAVAL RADIOLOGICAL DEFENSE LAB SAN FRANCISCO CA

Report Date:

1949-03-31

Pagination or Media Count:

11.0

Abstract:

Giving due regard to such practical considerations as time required for the operation, efficiency in removal of the contamination, and the collection and disposal of the contaminated material removed, the following means were investigated wire brushing, sanding, steaming, washing with hot lye solution, burning, and sandblasting. In conclusion, it can be stated that from consideration of all factors, sandblasting is the best and more positive method of decontamination. It is also the most economical industrially. If success is attained in improving the waste disposal methods in connection with sandblasting, this method will be even more satisfactory. Chemical paint removers are quite useful, but they are not as positive in their action as sandblasting. On the other hand, the problem of waste disposal in this method is much simpler in that it is just the disposal of contaminated liquids. The other methods, such as abrasion, steaming, and burning, can be used for special areas and under certain conditions. For instance, steaming could serve as a standby method, because in any shore installation steam is available. Steam can also be used on machined surfaces which cannot be subjected to severe methods. Abrasion and burning are adaptable to detailed or localized removal.

Subject Categories:

  • Radiobiology
  • Ceramics, Refractories and Glass

Distribution Statement:

APPROVED FOR PUBLIC RELEASE