Nanogranular origin of concrete creep.

  title={Nanogranular origin of concrete creep.},
  author={Matthieu Vandamme and Franz-Josef Ulm},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={106 26},
Concrete, the solid that forms at room temperature from mixing Portland cement with water, sand, and aggregates, suffers from time-dependent deformation under load. This creep occurs at a rate that deteriorates the durability and truncates the lifespan of concrete structures. However, despite decades of research, the origin of concrete creep remains unknown. Here, we measure the in situ creep behavior of calcium-silicate-hydrates (C-S-H), the nano-meter sized particles that form the fundamental… CONTINUE READING
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