Permeability and pore structure evolution of silicocalcareous and hematite high-strength concretes submitted to high temperatures

@article{Gall2001PermeabilityAP,
  title={Permeability and pore structure evolution of silicocalcareous and hematite high-strength concretes submitted to high temperatures},
  author={Christophe Gall{\'e} and J. Sercombe},
  journal={Materials and Structures},
  year={2001},
  volume={34},
  pages={619-628}
}
Two high-strength concretes (HSC) only differing in their aggregates—silico-calcareous and hematite—were heated at temperatures up to 450°C (1°C/min). The evolution of their microstructural parameters—porosity, pore structure, permeability—were analysed. Both concretes showed equivalent initial microstructural characteristics. From 60°C, heating generated a large capillary porosity characterized by pore accesses around 0.1 μm. The intensity and especially the width of the porosity peaks… CONTINUE READING

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