Micromechanical Properties of a New Polymeric Microcapsule for Self-Healing Cementitious Materials.

Despite the scatter, a significant trend can be observed in the dependence of the rupture force of PF microcapsules on the gradation of microcapsules with particle size distribution ranges 50–200, 200–400 and 400–600 μ m.

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The result demonstrates that, although the shell thickness to diameter ratio does not show an obvious linear relation and the coefficient of variation is up to 41.24%, the distribution interval of shell thickness is still found to have an increasing trend with the increase of the capsule’s diameter.

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