Method of Intensifying Cement Clinker Production

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F23%3AN0000081" target="_blank" >RIV/26232511:_____/23:N0000081 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Method of Intensifying Cement Clinker Production

Popis výsledku v původním jazyce

The reduction of CO2 emissions is one of the main themes of the present day, even in the case of cement production. One of the possibilities is to reduce the energy demand during clinker burning. A reduction in burning temperature due to chemical additives can contribute to this. The paper deals with the combined addition of lithium and sulfur compounds, which reduce the burning temperature by 100 to 150 °C. Both elements significantly affect the clinker melt's physical parameters, and sulfur stabilizes the more hydraulically active monoclinic modification of alite M1. In addition, cement made from this clinker shows a significant increase in early strength compared to ordinary Portland cement. The compressive strengths after 1 day are about 100 % higher and after 2 days about 50 % higher than the reference Portland cement CEM I. It would allow a reduction of the clinker content in blended cements and thus further reduce CO2 emissions. X-ray diffraction analysis and optical microscopy methods were mainly used for the research. The 16th International Congress on the Chemistry of Cement 2023 (ICCC2023), September 18–22, 2023, Bangkok, Thailand, Congress Paper vol. I, 62 – 65.

Název v anglickém jazyce

Method of Intensifying Cement Clinker Production

Popis výsledku anglicky

The reduction of CO2 emissions is one of the main themes of the present day, even in the case of cement production. One of the possibilities is to reduce the energy demand during clinker burning. A reduction in burning temperature due to chemical additives can contribute to this. The paper deals with the combined addition of lithium and sulfur compounds, which reduce the burning temperature by 100 to 150 °C. Both elements significantly affect the clinker melt's physical parameters, and sulfur stabilizes the more hydraulically active monoclinic modification of alite M1. In addition, cement made from this clinker shows a significant increase in early strength compared to ordinary Portland cement. The compressive strengths after 1 day are about 100 % higher and after 2 days about 50 % higher than the reference Portland cement CEM I. It would allow a reduction of the clinker content in blended cements and thus further reduce CO2 emissions. X-ray diffraction analysis and optical microscopy methods were mainly used for the research. The 16th International Congress on the Chemistry of Cement 2023 (ICCC2023), September 18–22, 2023, Bangkok, Thailand, Congress Paper vol. I, 62 – 65.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20100 - Civil engineering

Projekt

<a href="/cs/project/GA23-05082S" target="_blank" >GA23-05082S: Výzkum kombinovaného účinku oxidů síry, mědi a lithia na tvorbu a vlastnosti slínku portlandského cementu.</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů