Experimental measurement of gas permeability through bitumen: results for H2, N2 and O2 |
| |
| Authors: | E Favre B Simondi F Adenot |
| |
| Affiliation: | a Groupe ENSIC 1, CNRS UPR 6811, Laboratoire des Sciences du Génie Chimique, Ecole Nationale Supérieure des Industries Chimiques, 1, Rue Grandville. BP 451, 54001 Nancy cedex, France
b Commissariat à l′Energie Atomique, Centre de Cadarache, 13 108 Saint Paul lez Durance, France |
| |
| Abstract: | This study reports experimental results concerning the transport of permanent gases (H2, O2, N2) through bitumen between 15 and 25 °C. A pressure differential technique, already used in membrane science in order to determine the permeability of gases through dense polymeric films, has been attempted with bitumen samples. It is shown that reproducible permeability data can be obtained thanks to this strategy, providing that bitumen mechanical resistance is improved by a support paper and a low leak module is used. Experimental results are analyzed in terms of permeability value and temperature dependency (activation energy) in comparison with other dense and permeable organic solids (polymers). The limitations of the technique as well as its potential extension to diffusion coefficient determination are discussed. |
| |
| Keywords: | Permeability Gases Bitumen |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
