Concrete rehydration after heating to temperatures of up to 1200 C

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F11%3APU91977" target="_blank" >RIV/00216305:26110/11:PU91977 - 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

Concrete rehydration after heating to temperatures of up to 1200 C

Popis výsledku v původním jazyce

The presented research involves the study of the possible regeneration of cement binder in concrete subjected to high temperatures. An ongoing experimental program is simulating the heating of a concrete structure by a fire during which the temperature in the structure gradually increases. The experimental program is designed to analyze concrete behavior after heating to 200 - 1200 C and is investigate investigating the consecutive reactions of phases (which originate after heating) with water. The laboratory specimens (40x40x160 mm) are manufactured from fine-grained concrete with a water to cement ratio of w/c = 0.45. After heating and cooling, the specimens are placed under the following conditions for a time period of 2 months: (i) laboratory conditions (t = 22 C, R.H. = 55 %), (ii) water (t = 22 C) and (iii) laboratory conditions (t = 22 C, R.H. = 55 %) with periodical immersion of the specimens in water. To investigate the mechanism of concrete regeneration mercury intrusion poro

Název v anglickém jazyce

Concrete rehydration after heating to temperatures of up to 1200 C

Popis výsledku anglicky

The presented research involves the study of the possible regeneration of cement binder in concrete subjected to high temperatures. An ongoing experimental program is simulating the heating of a concrete structure by a fire during which the temperature in the structure gradually increases. The experimental program is designed to analyze concrete behavior after heating to 200 - 1200 C and is investigate investigating the consecutive reactions of phases (which originate after heating) with water. The laboratory specimens (40x40x160 mm) are manufactured from fine-grained concrete with a water to cement ratio of w/c = 0.45. After heating and cooling, the specimens are placed under the following conditions for a time period of 2 months: (i) laboratory conditions (t = 22 C, R.H. = 55 %), (ii) water (t = 22 C) and (iii) laboratory conditions (t = 22 C, R.H. = 55 %) with periodical immersion of the specimens in water. To investigate the mechanism of concrete regeneration mercury intrusion poro

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

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Projekt

<a href="/cs/project/1M0579" target="_blank" >1M0579: Centrum integrovaného navrhování progresivních stavebních konstrukcí</a><br>

Návaznosti

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

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název statě ve sborníku

XII DBMC - 12th International Conference on Durability of Building Materials and Components VOLUME III

ISBN

978-972-752-132-6

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

1633-1639

Název nakladatele

FEUP

Místo vydání

Porto

Místo konání akce

Porto

Datum konání akce

12. 4. 2011

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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