Nanostructure and nanomechanics of cement: polydisperse colloidal packing.
نویسندگان
چکیده
Cement setting and cohesion are governed by the precipitation and growth of calcium-silicate-hydrate, through a complex evolution of microstructure. A colloidal model to describe nucleation, packing, and rigidity of calcium-silicate-hydrate aggregates is proposed. Polydispersity and particle size dependent cohesion strength combine to produce a spectrum of packing fractions and of corresponding elastic properties that can be tested against nanoindentation experiments. Implications regarding plastic deformations and reconciling current structural characterizations are discussed.
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ورودعنوان ژورنال:
- Physical review letters
دوره 109 15 شماره
صفحات -
تاریخ انتشار 2012