The effect of sand/cement ratio on radon exhalation from cement specimens containing [formula omitted]

Different ratios of Portland cement and sand were mixed with radium chloride to produce radioactive cylinder specimens. Two types of sand were used (calcite and silica). The release of radon from these samples was studied. Results showed that radon release from the calcite–cement samples was affecte...

Full description

Saved in:
Bibliographic Details
Published in:Radiation measurements 2004-02, Vol.38 (1), p.31-36
Main Authors: Takriti, S., Shweikani, R., Ali, A.F., Raja, G.
Format: Article
Language:English
Subjects:
Environment radioactive
Radioactive waste
Radon exhalation
Shielding solidification
Waste disposal
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Different ratios of Portland cement and sand were mixed with radium chloride to produce radioactive cylinder specimens. Two types of sand were used (calcite and silica). The release of radon from these samples was studied. Results showed that radon release from the calcite–cement samples was affected by the sand ratios. It was also noticed that the release changed with the size of the sand particles. Same trends were observed from silica–cement samples. In addition, it was found that radon exhalation from calcite–cement samples were less than that of silica–cement samples. The results were explained by the creation of closed free spaces in the samples, which gave radon atoms the possibility to decay in these free spaces rather than exhalation.
ISSN:1350-4487
1879-0925
DOI:10.1016/j.radmeas.2003.07.001