Early hydration of reactive sulfur doped C2S-rich cement

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F19%3AN0000092" target="_blank" >RIV/26232511:_____/19:N0000092 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Early hydration of reactive sulfur doped C2S-rich cement
Original language description
Introduction of C2S-rich cements in production would result in reduction of CO2 emissions, energy saving and also has the additional practical advantage of requiring less high-grade limestone as a raw material. Paper deals with early hydration of cement based on C2S-rich clinker doped with sulfur in combination with Li. Early hydration of reference C2S-rich clinker cement paste was corelated with cement pastes of doped clinker cements. The course of hydration was studied by isothermal calorimetry, XRD methods and DTA-TGA. Main exothermic reaction and periods of hydration of C2S-rich S doped clinker cements are described in the paper. Reactivity of cement monitored as heat flow exotherms of cement paste was correlated with phase composition of cements. Doping of the C2S by the S or the combination of S and Li significantly increases the reactivity of the C2S-rich cement. Start of β-C2S reactions are detectable by monitoring the portlandite double endotherm on DTA, heat flow development during deceleration period of hydration in isothermal calorimeter and changes in phase composition including amorphous phase by XRD methods.
Czech name
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Czech description
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Project
<a href="/en/project/GA19-05762S" target="_blank" >GA19-05762S: Hydration and performance of reactive belite-rich cements</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Papers and posters proceedings 15th International Congress on the Chemistry of Cement
ISBN
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ISSN
2523-935X
e-ISSN
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Number of pages
10
Pages from-to
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Publisher name
Research Institute of Binding Materials Prague Ltd.
Place of publication
Prague, Czech Republic
Event location
Prague, Czech Republic
Event date
Sep 16, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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