STUDY OF HYDRATION PRODUCTS IN THE MODEL SYSTEMS METAKAOLIN?LIME AND METAKAOLIN?LIME?GYPSUM

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F15%3APU118475" target="_blank" >RIV/00216305:26310/15:PU118475 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.ceramics-silikaty.cz/2015/pdf/2015_04_283.pdf" target="_blank" >http://www.ceramics-silikaty.cz/2015/pdf/2015_04_283.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

STUDY OF HYDRATION PRODUCTS IN THE MODEL SYSTEMS METAKAOLIN?LIME AND METAKAOLIN?LIME?GYPSUM

Popis výsledku v původním jazyce

Possible preferential formation of ettringite instead of required calcium silicate hydrate (CSH) and calcium aluminosilicate hydrate (CASH) phases when aluminosilicates were added to the blended cements was investigated on the model systems comprising ofmetakaolin, lime and gypsum. Compressive strength, microstructure and phase composition of the samples were evaluated after 7 days of curing at 50°C, using thermal analysis, X-ray diffraction techniques and scanning electronic microscopy. Samples prepared from equal amounts of metakaolin, lime and with more than 8 wt. % of gypsum, displayed the highest compressive strength values. Development of compressive strength was correlated with the formation of ettringite. Further rising of gypsum content resulted in the decrease of compressive strength, which is notable in the samples with a different metakaolin/lime ratio. Lower content of gypsum led to the preferential formation of portlandite, CSH and CASH. Calcite was detected in all the s

Název v anglickém jazyce

STUDY OF HYDRATION PRODUCTS IN THE MODEL SYSTEMS METAKAOLIN?LIME AND METAKAOLIN?LIME?GYPSUM

Popis výsledku anglicky

Possible preferential formation of ettringite instead of required calcium silicate hydrate (CSH) and calcium aluminosilicate hydrate (CASH) phases when aluminosilicates were added to the blended cements was investigated on the model systems comprising ofmetakaolin, lime and gypsum. Compressive strength, microstructure and phase composition of the samples were evaluated after 7 days of curing at 50°C, using thermal analysis, X-ray diffraction techniques and scanning electronic microscopy. Samples prepared from equal amounts of metakaolin, lime and with more than 8 wt. % of gypsum, displayed the highest compressive strength values. Development of compressive strength was correlated with the formation of ettringite. Further rising of gypsum content resulted in the decrease of compressive strength, which is notable in the samples with a different metakaolin/lime ratio. Lower content of gypsum led to the preferential formation of portlandite, CSH and CASH. Calcite was detected in all the s

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/LO1211" target="_blank" >LO1211: Centrum materiálového výzkumu na FCH VUT v Brně - udržitelnost a rozvoj</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

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Svazek periodika

4

Číslo periodika v rámci svazku

59

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

283-291

Kód UT WoS článku

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EID výsledku v databázi Scopus

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