Main Title |
Laboratory Assessment of the Permeability and Diffusion Characteristics of Florida Concretes. Phase 1. Methods Development and Testing. |
Author |
Snoddy., R. ;
|
CORP Author |
Acurex Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
Publisher |
Apr 94 |
Year Published |
1994 |
Report Number |
EPA-68-DO-0141; EPA/600/R-94/053; |
Stock Number |
PB94-162781 |
Additional Subjects |
Concrete slabs ;
Permeability ;
Radon ;
Florida ;
Diffusivity ;
Tests ;
Porosity ;
Slab on ground construction ;
Construction management ;
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB94-162781 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
115p |
Abstract |
Much of Florida's natural soil and sand recovered from the phosphate mining/beneficiation process there contain significant quantities of radium. Buildings constructed on these high-radium soils have been found to contain elevated radon levels. To decrease elevated indoor radon levels, Florida's legislature instructed its Department of Community Affairs to develop new construction standards for radon-resistant buildings, primarily slab-on-grade constructions. Primary research objectives were as follows: to establish the capability to measure concrete's permeability and diffusivity; to measure these parameters in a small sampling of the typical types of Florida concrete; and, if possible, to correlate the physical parameters of the concrete (mix design, porosity, surface finish, etc.) to the measured diffusion and permeability coefficients. |
Supplementary Notes |
Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. |
NTIS Title Notes |
Final rept. Oct 90-Sep 91. |
Category Codes |
50C; 89G; 68F; 68A |
NTIS Prices |
PC A06/MF A02 |
Primary Description |
600/13 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
416822718 |
Origin |
NTIS |
Type |
CAT |