Low-energy Cements: their production and utilization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F16%3AN0000011" target="_blank" >RIV/26232511:_____/16:N0000011 - 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

Low-energy Cements: their production and utilization

Popis výsledku v původním jazyce

Term “low-energy cements” describes cements that can replace ordinary Portland cement in at least some applications and can also reduce energy consumption during the production process. An expansion of these cements could lead in both lower costs of binders production and lower emissions, CO2 especially. Belite cements are part of low- energy cements. Pure belite clinkers with interstitial matter comprising C3A and C4AF are not produced, since they yield materials with insufficient strength. Currently, sulfoaluminate- belite cements, low-energy cements doped with fluorine and chlorine as well as undoped high-belite cements are produced in limited volumes in China. Results of hydraulic activation of high-belite clinker by sulfate anions are also given in this work. A principle of activation is the preparation of belite clinker with increased Ca:Si ratio in the structure of dicalcium silicate at substitution of SÍO44' by SO42'. Cements prepared from these high-belite content clinkers with alite content up to 25% that were burned at 1350°C display the same technological properties including early strengths as ordinary alite Portland cements. Proceedings of the 9th International Concrete Conference 2016, Environment, Efficiency and Economic Chalenges for Concrete. 4-6 July 2016, Dundee, Scotland, UK, 271-282. ISBN 978-0-9573263-1-6 University of Dundee

Název v anglickém jazyce

Low-energy Cements: their production and utilization

Popis výsledku anglicky

Term “low-energy cements” describes cements that can replace ordinary Portland cement in at least some applications and can also reduce energy consumption during the production process. An expansion of these cements could lead in both lower costs of binders production and lower emissions, CO2 especially. Belite cements are part of low- energy cements. Pure belite clinkers with interstitial matter comprising C3A and C4AF are not produced, since they yield materials with insufficient strength. Currently, sulfoaluminate- belite cements, low-energy cements doped with fluorine and chlorine as well as undoped high-belite cements are produced in limited volumes in China. Results of hydraulic activation of high-belite clinker by sulfate anions are also given in this work. A principle of activation is the preparation of belite clinker with increased Ca:Si ratio in the structure of dicalcium silicate at substitution of SÍO44' by SO42'. Cements prepared from these high-belite content clinkers with alite content up to 25% that were burned at 1350°C display the same technological properties including early strengths as ordinary alite Portland cements. Proceedings of the 9th International Concrete Conference 2016, Environment, Efficiency and Economic Chalenges for Concrete. 4-6 July 2016, Dundee, Scotland, UK, 271-282. ISBN 978-0-9573263-1-6 University of Dundee

Druh

O - Ostatní výsledky

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/GC16-08959J" target="_blank" >GC16-08959J: Výzkum a vývoj vysoce reaktivních nízkoenergetických cementů na bázi belitu stabilizovaného cizími ionty</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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