Main Title |
Radon generation and transport in aged concrete / |
Author |
Rogers, Vern C. ;
Nielson, K. K. ;
Holt, R. B.
|
Other Authors |
|
CORP Author |
Rogers and Associates Engineering Corp., Salt Lake City, UT. ;Florida Univ., Gainesville. Dept. of Urban and Regional Planning.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.;Florida Dept. of Community Affairs, Tallahassee. |
Publisher |
U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory ; Available from the National Technical Information Service, |
Year Published |
1995 |
Report Number |
EPA-600/R-95-032; RWFL933783-01; 93RD-66-13-00-22-003; 1506481-12; RAE-9226/1-10R1; FDCA-93RD-66-13-00-22-003 |
Stock Number |
PB95-181590 |
Subjects |
Radon--Measurement ;
Architecture, Domestic--Florida ;
Concrete slabs--Safety measures
|
Additional Subjects |
Radon ;
Concrete slabs ;
Radionuclide migration ;
Radioecological concentration ;
Foundations(Structures) ;
Concretes ;
Construction materials ;
Nuclear decay ;
Residential buildings ;
Permeability ;
Diffusion ;
Indoor air pollution ;
Translocation ;
Radon generation
|
Internet Access |
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Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB95-181590 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
31 pages : illustrations ; 28 cm |
Abstract |
The report gives results of a characterization of radon generation and transport in Florida concretes sampled from 12- to 45-year-old residential slabs. It also compares measurements from the old concrete samples to previous measurements on newly poured Florida residential concretes. Radon generation in the aged slabs was characterized in terms of concrete radium concentrations and radon emanation coefficients, and radon transport was characterized by radon diffusion coefficients and air permeability coefficients. On the average, these values are about a factor of 2 higher than average values for new residential concretes. The measured air permeability coefficients also average about a factor of 2 higher than those for new concretes. |
Notes |
Caption title. "February 1995." "EPA-600/R-95-032." "EPA interagency agreement RWFL933783-01." "Florida Dept. of Community Affairs contract 93RD-66-13-00-22-003." "University of Florida subcontract (acct. 1506481-12)." Includes bibliographical references. Microfiche. |