Modeling of Hydration of Concrete at Very Low Temperatures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F14%3A00218424" target="_blank" >RIV/68407700:21110/14:00218424 - 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

Modeling of Hydration of Concrete at Very Low Temperatures

Popis výsledku v původním jazyce

This paper describes a possible tool for estimation of potential risk arising from placing concrete in winter. It is well known that the hydration reaction depends of temperature and that the driving force for hydration is the diffusion of free water. Low ambient temperatures close to the freezing point or temperatures below zero during hydration have the potential to affect adversely the ultimate performance of concrete structures. Therefore, it is necessary to assess the risk and provide adequate countermeasures such as thermal insulation or direct heat sources to the hydrating concrete, of course, with the strong emphasis on their cost. The proposed model of hydration under very low temperatures is based on fuzzy logic and uses the commonly available data from concrete producers. The applicability of the model is shown in an example.

Název v anglickém jazyce

Modeling of Hydration of Concrete at Very Low Temperatures

Popis výsledku anglicky

This paper describes a possible tool for estimation of potential risk arising from placing concrete in winter. It is well known that the hydration reaction depends of temperature and that the driving force for hydration is the diffusion of free water. Low ambient temperatures close to the freezing point or temperatures below zero during hydration have the potential to affect adversely the ultimate performance of concrete structures. Therefore, it is necessary to assess the risk and provide adequate countermeasures such as thermal insulation or direct heat sources to the hydrating concrete, of course, with the strong emphasis on their cost. The proposed model of hydration under very low temperatures is based on fuzzy logic and uses the commonly available data from concrete producers. The applicability of the model is shown in an example.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 19th International Conference

ISBN

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ISSN

1822-2951

e-ISSN

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Počet stran výsledku

5

Strana od-do

248-252

Název nakladatele

Kauno technologijos universitetas

Místo vydání

Kaunas

Místo konání akce

Kaunas

Datum konání akce

24. 4. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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