Comprehensive study of moist curing duration and activator type on mechanical properties, shrinkage, and cracking of alkali-activated slag

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU150560" target="_blank" >RIV/00216305:26110/24:PU150560 - isvavai.cz</a>
Result on the web
<a href="https://www.webofscience.com/wos/woscc/full-record/WOS:001173879900001" target="_blank" >https://www.webofscience.com/wos/woscc/full-record/WOS:001173879900001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.conbuildmat.2024.135199" target="_blank" >10.1016/j.conbuildmat.2024.135199</a>

Result language
angličtina
Original language name
Comprehensive study of moist curing duration and activator type on mechanical properties, shrinkage, and cracking of alkali-activated slag
Original language description
Despite the considerable research efforts, shrinkage and cracking of alkali-activated slag (AAS) is still a delicate issue. One of the reasons is the enormous complexity of these materials, which originates from different activators, their different dosing, and different approaches for curing. Therefore, the effect of the duration of moist curing of AAS pastes with the three most common sodium activator types (hydroxide, waterglass, carbonate) of the same molarity 4M Na+) and the same starting slag volume fraction (0.52) on their mechanical properties, shrinkage, and cracking performance was complexly investigated throughout one year. Shrinkage was assessed manually by measuring length changes and automatically using embedded strain gauges. A non-destructive resonance method was newly applied to monitor the evolution of cracking over time, including the physical closure of cracks. The obtained results emphasise the fundamental role of an activator for curing effectiveness based on the rate of reaction and microstructural refinement.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/GA22-02098S" target="_blank" >GA22-02098S: Experimental analysis of the shrinkage, creep and cracking mechanism of the materials based on the alkali-activated slag</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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