Low-energy cements and possibilities of their production

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F17%3AN0000011" target="_blank" >RIV/26232511:_____/17: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 and possibilities of their production

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, lowenergy 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 chapter. A principle of activation is the preparation of belite clinker with increased Ca:Si ratio in the structure of dicalcium silicate at substitution of SiO4 4- by SO4 2-. Cements prepared from these high-belite content clinkers with alite content up to 25 % that were burned at 1 350 °C display the same technological properties including early strengths as ordinary alite Portland cements.

Název v anglickém jazyce

Low-energy cements and possibilities of their production

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, lowenergy 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 chapter. A principle of activation is the preparation of belite clinker with increased Ca:Si ratio in the structure of dicalcium silicate at substitution of SiO4 4- by SO4 2-. Cements prepared from these high-belite content clinkers with alite content up to 25 % that were burned at 1 350 °C display the same technological properties including early strengths as ordinary alite Portland cements.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

20500 - Materials engineering

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

2017

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Energy efficient, sustainable building materials and products

ISBN

978-83-7242-966-7

Počet stran výsledku

31

Strana od-do

153-182

Počet stran knihy

318

Název nakladatele

Wydawnictwo Politechniki Krakowskiej

Místo vydání

Kraków

Kód UT WoS kapitoly

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