Re-hydration of thermally treated cement pastes containing limestone and metakaolin
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F25%3A00600465" target="_blank" >RIV/68378297:_____/25:00600465 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1007/978-3-031-70277-8_29" target="_blank" >https://doi.org/10.1007/978-3-031-70277-8_29</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/978-3-031-70277-8_29" target="_blank" >10.1007/978-3-031-70277-8_29</a>
Alternative languages
Result language
angličtina
Original language name
Re-hydration of thermally treated cement pastes containing limestone and metakaolin
Original language description
The notable environmental impact of Portland cement concrete manufacture is of great concern, driving the efforts towards the design of sustainable binders with reduced cement component. Here, information about the dehydrationnof cement pastes containing limestone and metakaolin, and the hydration characteristics of the materials obtained after heat treatment (1 h at 800 ºC), are reported. The analytical techniques used include X-ray diffraction, infrared spectroscopy, scanning electron microscopy, and isothermal conductive calorimetry. The results showed that the dehydration of the studied cement paste fines led to the formation of clinker phases and CaO, with C2S being dominant. The increase of limestone content in cement resulted in the formation of lower amounts of clinker phases, while less CaO formed in the thermally treated paste containing metakaolin. The re-hydration process was accelerated with the increasing limestone content in cements, but it was considerably delayed in the case of the thermally treated blend nwith metakaolin. Re-hydration of the thermally treated fines resulted in the recovery of the hydrated phases, and it was characterized by increased formation of Ca(OH)2 and adsorption of water, as well as by the formation of C-S-H with lessnpolymerized silicate chains, compared to the original cement paste fines.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Proceedings of the RILEM spring convention and conference 2024
ISBN
978-3-031-70276-1
ISSN
2211-0844
e-ISSN
2211-0852
Number of pages
9
Pages from-to
249-257
Publisher name
Springer
Place of publication
Cham
Event location
Milano
Event date
Apr 10, 2024
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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