| Main Title |
Laboratory Assessment of the Permeability and Diffusion Characteristics of Florida Concretes. Phase 2. Field Samples and Analyses. |
| Author |
Snoddy, R. ;
|
| CORP Author |
Acurex Environmental Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.;Florida Dept. of Community Affairs, Tallahassee. Codes and Standards Div. |
| Publisher |
Jul 95 |
| Year Published |
1995 |
| Report Number |
EPA-68-DO-0141; EPA/600/R-95/103; |
| Stock Number |
PB95-243168 |
| Additional Subjects |
Concretes ;
Permeability ;
Radon ;
Air pollution control ;
Radionuclide migration ;
Air flow ;
Indoor air pollution ;
Concrete slabs ;
Physical properties ;
Water ;
Cements ;
Fly ash ;
Sands ;
Stones ;
Porosity ;
Diffusion coefficient ;
Slab on ground construction ;
Construction materials ;
Tests ;
Statistical analysis ;
Florida ;
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB95-243168 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
51p |
| Abstract |
Primary research objectives were 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; if possible, to correlate the physical parameters of the concrete (mix design, porosity, etc.) to the measured diffusion and permeability coefficients. Sample permeability was measured and analyzed with a device developed for this project. For both permeability and diffusivity, the amount of water added to the mix at the site was directly and positively related and identified as a possible major factor. The data indicated that the total amount of sand and stone in the mix was possibly correlated to the permeability. A third possible correlation involved the amount of fly ash or the cement to fly ash ratio. |
| Supplementary Notes |
See also Phase 1, PB94-162781. Sponsored by Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab. and Florida Dept. of Community Affairs, Tallahassee. Codes and Standards Div. |
| NTIS Title Notes |
Final rept. Oct 92-Sep 93. |
| Category Codes |
68F; 68A; 89G; 89D |
| NTIS Prices |
PC A04/MF A01 |
| Primary Description |
600/13 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
530500860 |
| Origin |
NTIS |
| Type |
CAT |
