The Nanogranular Nature of Hydrated Porous Materials: Concrete, Shale and Bone
Franz-Josef UlmThis presentation
reviews recent developments in the field of indentation analysis of porous
materials. The fundamental idea of the proposed approach is that it is possible
to assess porous nanostructure and nanomechanical properties from the
implementation of microporomechanics-based scaling relations for a large array
of nanoindentation tests on heterogeneous materials. We illustrate the approach
through selective results from the application of these techniques to concrete,
bone and shale. The overall picture that emerges is that the poromechanical
response of these materials is governed by their nanogranular nature for which
Biot’s poromechanics theory is a formidable framework of analysis.