Published October 12, 1985 | Version v1
Patent Metadata-only

Method of decontaminating concretes

Creators

Description

Purpose: To selectively strip and remove the contaminated portions of radioactive contaminated concretes while preventing secondary contamination thereby reduce the amount of radioactive wastes. Method: The contaminated portions at the surface layers of radioactive contaminated concretes resulted from a nuclear power plant are pulverized by repeatingly applying rapid temperature changes thereto. Then, for peeling off the pulverized contaminated portions with no scattering of powdery dusts, a metal alkoxide is impregnated into the pulverized portion to solidify and then the contaminated portions are stripped. (Yoshino, Y.)

Availability note (English)

Available from JAPIO. Also available from INPADOC.

Additional details

Publishing Information

Imprint Pagination
4 p.
IPC:
Int. Cl. G21F9/30.
IPC
Int. Cl. G21F9/30.
Patent number
JP patent document 60-202400/A/

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
17065778
Subject category
S12: MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
CONCRETES; CRACKS; DECONTAMINATION; HEATING; NUCLEAR POWER PLANTS; RADIOACTIVE WASTE PROCESSING; REACTOR DECOMMISSIONING; SOLID WASTES; SOLIDIFICATION; SURFACE CONTAMINATION; TEMPERATURE CONTROL
Descriptors DEC
BUILDING MATERIALS; CLEANING; CONTAMINATION; CONTROL; DECOMMISSIONING; MANAGEMENT; MATERIALS; NUCLEAR FACILITIES; POWER PLANTS; THERMAL POWER PLANTS; WASTE MANAGEMENT; WASTE PROCESSING; WASTES

Optional Information

Secondary number(s)
JP patent application 59-58304.