Community Research and Development Information Service - CORDIS

Abstract

This report describes an investigation into a method of immobilizing dust following demolition of a concrete structure. It selects sodium silicate for detailed assessment as a first choice. Part A dealing with the chemical aspects shows that sodium silicate will successfully encapsulate dust in bulk and will affix that left attached to rubble. Part B, dealing with the engineering and process aspects, examines dust collection and stabilization with silicate. The preferred process from operational considerations is to pelletize the dust, to be packed economically with more active material. By grouting around the pellets there will be no continuous paths for radionuclide migration. The feasibility of collection by suction nozzle, conveying Pelletizing machines are selected. The most successful: pan agglomerator and various forms of briquetting roller compaction machines. A comparison is made of the properties of pellets leading to recommendations of process parameters for a pilot plant.

Additional information

Authors: BARODY I I, TAYLOR WOODROW CONSTRUCTION LTD., SOUTHALL, MIDDLESEX (UK);LANGRIDGE D G, TAYLOR WOODROW CONSTRUCTION LTD., SOUTHALL, MIDDLESEX (UK);SPEYER D S, TAYLOR WOODROW CONSTRUCTION LTD., SOUTHALL, MIDDLESEX (UK);TOWELL D R TAYLOR WOODROW CONSTRUCTION LTD., SOUTHALL, MIDDLESEX (UK), TAYLOR WOODROW CONSTRUCTION LTD., SOUTHALL, MIDDLESEX (UK)
Bibliographic Reference: EUR 9568 EN (1985) FS, 107 P., BFR 350, EUROFFICE, LUXEMBOURG, POB 1003
Availability: Can be ordered online
Record Number: 1989123045700 / Last updated on: 1987-01-01
Category: PUBLICATION
Available languages: en