Self-healing potential of supplementary cementitious materials in cement mortars: Sorptivity and pore structure
نویسندگان
چکیده
This paper presents the autogenic self-healing potential of Portland cement (PC) blends made with conventional supplementary cementitious materials (SCMs), to improve water-tightness by reducing overall pore size. Mortar samples were prepared mixing PC, sand and water, partially replacing PC either silica fume (SF), pulverised fuel ash (PFA), or ground granulated blast-furnace slag (GGBS). Damaged subjected a water bath heal microcracks recover water-tightness, further hydration starting minerals. Water absorption density measurements in undamaged, damaged healed conditions used determine autogenous healing SCMs mixes, showing post-healing recovery up 68% compared mix only. Thermal analysis, XRD MIP confirmed capability promote formation hydrated phases, reduce size more than 88% mixes.
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ژورنال
عنوان ژورنال: Developments in the built environment
سال: 2021
ISSN: ['2666-1659']
DOI: https://doi.org/10.1016/j.dibe.2021.100044