RADON DIFFUSION-COEFFICIENTS FOR RESIDENTIAL CONCRETES

Authors
ROGERS VC NIELSON KK HOLT RB SNODDY R
Citation
Vc. Rogers et al., RADON DIFFUSION-COEFFICIENTS FOR RESIDENTIAL CONCRETES, Health physics, 67(3), 1994, pp. 261-265
Citations number
15
Categorie Soggetti
Radiology,Nuclear Medicine & Medical Imaging
Journal title
Health physics → ACNP
ISSN journal
00179078
Volume
67
Issue
3
Year of publication
1994
Pages
261 - 265
Database
ISI
SICI code
0017-9078(1994)67:3<261:RDFRC>2.0.ZU;2-B
Abstract
Radon gas diffusion through concrete can be a significant mechanism fo r radon entry into dwellings. Measurements of radon diffusion coeffici ents in the pores of residential concretes ranged from 2.1 x 10(-8) m( 2) s(-1) to 5.2 x 10(-7) m(2) s(-1). The pore diffusion coeacients gen erally increased with the water-cement ratio of the concrete and decre ased with its density. A least-squares regression of the diffusion coe fficients on concrete density gave an r value of -0.73.