Low-Energy Cements and Belite Activation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F22%3AN0000059" target="_blank" >RIV/26232511:_____/22:N0000059 - 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 Belite Activation

Popis výsledku v původním jazyce

The 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. Extension of these cements could lead both to 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 paper. The principle of activation is the preparation of belite clinker with increased Ca:Si ratio in the structure of dicalcium silicate by substitution a part of SiO44- by SO42-. Cements prepared from these high-belite clinkers with alite content up to 30% that were burned at 1,350°C display the same technological properties as ordinary alite Portland cements, including early strengths as ordinary alite Portland cements and comply with standard EN 197-1.

Název v anglickém jazyce

Low-Energy Cements and Belite Activation

Popis výsledku anglicky

The 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. Extension of these cements could lead both to 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 paper. The principle of activation is the preparation of belite clinker with increased Ca:Si ratio in the structure of dicalcium silicate by substitution a part of SiO44- by SO42-. Cements prepared from these high-belite clinkers with alite content up to 30% that were burned at 1,350°C display the same technological properties as ordinary alite Portland cements, including early strengths as ordinary alite Portland cements and comply with standard EN 197-1.

Druh

C - Kapitola v odborné knize

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název knihy nebo sborníku

Properties and Uses of Calcium Silicate

ISBN

979-8-88697-128-6

Počet stran výsledku

47

Strana od-do

53-101

Počet stran knihy

208

Název nakladatele

Nova Science Publishers, Inc.

Místo vydání

New York

Kód UT WoS kapitoly

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