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Transport Properties of Concrete by Peter A. Claisse

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14

Applications using measured values of the transport properties of concrete II: modelling the effect of gas pressure

Abstract:

Cementitious barriers remain the primary containment mechanism for nuclear waste disposal in the UK. This chapter reports on a major programme in which the movement of gas in a nuclear waste repository was modelled using both analytical methods and a computer model. The purpose of the model was to predict cracking. Cracks would be a significant problem because they would permit harmful species to escape without being exposed to binding sites on the cementitious matrix. The measurement of the permeability of the materials was reported in Chapter 6. Calculations are presented to show the effect of the gas pressure on cracking ...

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