Vliv superplastifikátorů na bázi PCE na směsi portlandského cementu s mletou granulovanou struskou

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26232511%3A_____%2F09%3ACIVAK079" target="_blank" >RIV/26232511:_____/09:CIVAK079 - 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

Influence of PCE superplasticizers on PC/GGBS cement

Popis výsledku v původním jazyce

Blend of Portland cement (PC) and 25 wt. % of ground granulated blast-furnace slag (GGBS) was modfied by superplasticizers (SP) based on polycarboxylate ether (PCE). It included liquid SP and powder SP. The influence of variable dosage and water/cement (w/c) ratio was measured. The measurement was made on cement pastes and mortars. X-ray diffraction was used to reveal the influence of SP on phase composition after 2 and 28 days of hydration. Rheological properties of modified cement were measured by slump tests and changes of viscosity according to variable dosage of SP were monitored by rotation viscometr. Hydration heat was measured by calorimeter in semiadiabatic regime for 24 hours. Tmax., time of Tmax. and bulk hydration heat for various doses ofSP were determined. Furthemore the influence of SP on compressive and tensile strength after 1, 2, 28 a 90 days of hydration was monitored.

Název v anglickém jazyce

Influence of PCE superplasticizers on PC/GGBS cement

Popis výsledku anglicky

Blend of Portland cement (PC) and 25 wt. % of ground granulated blast-furnace slag (GGBS) was modfied by superplasticizers (SP) based on polycarboxylate ether (PCE). It included liquid SP and powder SP. The influence of variable dosage and water/cement (w/c) ratio was measured. The measurement was made on cement pastes and mortars. X-ray diffraction was used to reveal the influence of SP on phase composition after 2 and 28 days of hydration. Rheological properties of modified cement were measured by slump tests and changes of viscosity according to variable dosage of SP were monitored by rotation viscometr. Hydration heat was measured by calorimeter in semiadiabatic regime for 24 hours. Tmax., time of Tmax. and bulk hydration heat for various doses ofSP were determined. Furthemore the influence of SP on compressive and tensile strength after 1, 2, 28 a 90 days of hydration was monitored.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/1M06005" target="_blank" >1M06005: Centrum integrovaného výzkumu anorganických kompozitů</a><br>

Návaznosti

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

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název statě ve sborníku

XIIIthe international conference Ecology and new building materials and products

ISBN

978-80-254-4447-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

Výzkumný ústav stavebních hmot

Místo vydání

Brno

Místo konání akce

Telč

Datum konání akce

1. 1. 2009

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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