Influence of content of microcapsules on flexural strength restoration of cement paste: (a) standard curing (b) water curing.

<p>Influence of content of microcapsules on flexural strength restoration of cement paste: (a) standard curing (b) water curing.</p

SEM-EDS micrographs of damaging specimens at different stages: (a) 30%<i>f</i> (b) 60%<i>f</i> (c) capsules layout at 100%<i>f</i> (d) healing cracks at 100%<i>f</i>.

<p>SEM-EDS micrographs of damaging specimens at different stages: (a) 30%<i>f</i> (b) 60%<i>f</i> (c) capsules layout at 100%<i>f</i> (d) healing cracks at 100%<i>f</i>.</p

Load-displacement curves for blank cement paste during pre-damage: (a) standard curing (b) water curing.

<p>Load-displacement curves for blank cement paste during pre-damage: (a) standard curing (b) water curing.</p

Schematic load-deformation relationship of cementitious material.

<p>Schematic load-deformation relationship of cementitious material.</p

Reloading-displacement curves for blank cement paste after healing.

<p>Reloading-displacement curves for blank cement paste after healing.</p

Crack penetration of specimens before failure: (a) reference (b) 1% of microcapsules (c) 2% of microcapsules.

<p>Crack penetration of specimens before failure: (a) reference (b) 1% of microcapsules (c) 2% of microcapsules.</p

Influence of content of microcapsules on compressive strength restoration of cement paste: (a) standard curing (b) water curing.

<p>Influence of content of microcapsules on compressive strength restoration of cement paste: (a) standard curing (b) water curing.</p

Preparation procedure of microcapsules.

<p>Preparation procedure of microcapsules.</p

Water sorption of cement paste during healing: (a) reference (b) 1% of microcapsules (c) 2% of microcapsules.

<p>Water sorption of cement paste during healing: (a) reference (b) 1% of microcapsules (c) 2% of microcapsules.</p

OM micrographs of microcapsules prepared: (a) ×4 (b) ×10.

<p>OM micrographs of microcapsules prepared: (a) ×4 (b) ×10.</p