Hydration and thermal properties of alkaline hybrid cements
based on waste clay and solid alkaline activators

J 2025

Hydration and thermal properties of alkaline hybrid cements based on waste clay and solid alkaline activators

KUBATOVA, Dana; Anezka ZEZULOVA; Michaela KREJČÍ KOTLÁNOVÁ; Eliska KRIVANKOVA; Martin BOHAC et. al.

Základní údaje

Originální název

Hydration and thermal properties of alkaline hybrid cements based on waste clay and solid alkaline activators

Autoři

KUBATOVA, Dana; Anezka ZEZULOVA; Michaela KREJČÍ KOTLÁNOVÁ; Eliska KRIVANKOVA; Martin BOHAC a Theodor STANEK

Vydání

Journal of Thermal Analysis and Calorimetry, Springer, 2025, 1388-6150

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

20101 Civil engineering

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.100 v roce 2024

Organizační jednotka

Přírodovědecká fakulta

DOI

https://doi.org/10.1007/s10973-024-13944-5

UT WoS

001389306100001

EID Scopus

2-s2.0-85214087778

Klíčová slova anglicky

Hybrid alkaline cement; Rotary kiln flue dust; Waste clay; Alkaline activation; Thermal resistance

Štítky

14315010, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 28. 5. 2025 10:33, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

The cement industry is actively pursuing sustainable alternatives to reduce CO2 emissions and combat climate change. This study focuses on replacing Portland cement (PC) with rotary kiln flue dust (RFD), a byproduct of metakaolin production. The research investigates the viability of using moderately alkaline activators, including Na2SO4, Na2CO3, K2SO4, and K2CO3, to achieve alkali activation without the need for high-temperature calcination, which consumes a lot of energy. The experimental mixtures, comprising 75% RFD, 20% PC, and 5% alkaline activator, exhibit promising results in terms of compressive and flexural strengths. Na2SO4 enhances the mechanical properties of the binder. Synergic effect of alkaline activator and PC accelerate reaction original raw material, leading to the formation of ettringite. Conversely, carbonate activators extend the setting time and delay reactions, impacting the early age properties of the binder. The study also explores the thermal stability of the binders, demonstrating a notable impact of alkaline activators on the expansion and contraction behaviors during heating. The findings contribute with valuable insights into the design and optimization of eco-friendly alkali-activated binders, addressing the need for sustainable construction materials with enhanced performance and durability. This research represents a significant step toward developing environmentally preferable cementitious materials, paving the way for the construction industry to adopt more sustainable practices and reduce its ecological footprint.

Citovat

KUBATOVA, Dana; Anezka ZEZULOVA; Michaela KREJČÍ KOTLÁNOVÁ; Eliska KRIVANKOVA; Martin BOHAC a Theodor STANEK. Hydration and thermal properties of alkaline hybrid cements based on waste clay and solid alkaline activators. Journal of Thermal Analysis and Calorimetry. Springer, 2025, roč. 150, č. 2, s. 1105-1117. ISSN 1388-6150. Dostupné z: https://doi.org/10.1007/s10973-024-13944-5.

@article{2499629,
   author = {Kubatova, Dana and Zezulova, Anezka and Krejčí Kotlánová, Michaela and Krivankova, Eliska and Bohac, Martin and Stanek, Theodor},
   article_number = {2},
   doi = {https://doi.org/10.1007/s10973-024-13944-5},
   keywords = {Hybrid alkaline cement; Rotary kiln flue dust; Waste clay; Alkaline activation; Thermal resistance},
   language = {eng},
   issn = {1388-6150},
   journal = {Journal of Thermal Analysis and Calorimetry},
   title = {Hydration and thermal properties of alkaline hybrid cements based on waste clay and solid alkaline activators},
   url = {https://link.springer.com/article/10.1007/s10973-024-13944-5},
   volume = {150},
   year = {2025}
}

TY  - JOUR
ID  - 2499629
AU  - Kubatova, Dana - Zezulova, Anezka - Krejčí Kotlánová, Michaela - Krivankova, Eliska - Bohac, Martin - Stanek, Theodor
PY  - 2025
TI  - Hydration and thermal properties of alkaline hybrid cements based on waste clay and solid alkaline activators
JF  - Journal of Thermal Analysis and Calorimetry
VL  - 150
IS  - 2
SP  - 1105-1117
EP  - 1105-1117
PB  - Springer
SN  - 13886150
KW  - Hybrid alkaline cement
KW  - Rotary kiln flue dust
KW  - Waste clay
KW  - Alkaline activation
KW  - Thermal resistance
UR  - https://link.springer.com/article/10.1007/s10973-024-13944-5
N2  - The cement industry is actively pursuing sustainable alternatives to reduce CO2 emissions and combat climate change. This study focuses on replacing Portland cement (PC) with rotary kiln flue dust (RFD), a byproduct of metakaolin production. The research investigates the viability of using moderately alkaline activators, including Na2SO4, Na2CO3, K2SO4, and K2CO3, to achieve alkali activation without the need for high-temperature calcination, which consumes a lot of energy. The experimental mixtures, comprising 75% RFD, 20% PC, and 5% alkaline activator, exhibit promising results in terms of compressive and flexural strengths. Na2SO4 enhances the mechanical properties of the binder. Synergic effect of alkaline activator and PC accelerate reaction original raw material, leading to the formation of ettringite. Conversely, carbonate activators extend the setting time and delay reactions, impacting the early age properties of the binder. The study also explores the thermal stability of the binders, demonstrating a notable impact of alkaline activators on the expansion and contraction behaviors during heating. The findings contribute with valuable insights into the design and optimization of eco-friendly alkali-activated binders, addressing the need for sustainable construction materials with enhanced performance and durability. This research represents a significant step toward developing environmentally preferable cementitious materials, paving the way for the construction industry to adopt more sustainable practices and reduce its ecological footprint.
ER  -

KUBATOVA, Dana; Anezka ZEZULOVA; Michaela KREJČÍ KOTLÁNOVÁ; Eliska KRIVANKOVA; Martin BOHAC a Theodor STANEK. Hydration and thermal properties of alkaline hybrid cements based on waste clay and solid alkaline activators. \textit{Journal of Thermal Analysis and Calorimetry}. Springer, 2025, roč.~150, č.~2, s.~1105-1117. ISSN~1388-6150. Dostupné z: https://doi.org/10.1007/s10973-024-13944-5.

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