Changes of the Dynamic Modulus of Elasticity in Dependence on the Number of the Freeze-Thaw Cycles

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F13%3A00210072" target="_blank" >RIV/68407700:21110/13:00210072 - 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

Changes of the Dynamic Modulus of Elasticity in Dependence on the Number of the Freeze-Thaw Cycles

Popis výsledku v původním jazyce

The paper presents the determination of the modulus of elasticity on gypsum samples using the nondestructive impulse excitation method. The great advantage of non-destructive testing, compared to destructive, is that still the same sample is tested and it excludes various negative effects. The paper presents the development of modulus of elasticity on gypsum samples according to the number of freeze-thaw cycles. For cyclic loading, the samples were saturated with water at 20 °C and tested in 8-hour cycles. Samples were removed from the water bath and placed in a freezer with a temperature lower than -20 °C and after 8 hours they were placed again in the water bath for a period of eight hours. The difference from 'dry' frost resistance was that the samples of hardened plaster were exposed to "wet" frost resistance, i.e. to the extreme load of the samples with the external climatic conditions.

Název v anglickém jazyce

Changes of the Dynamic Modulus of Elasticity in Dependence on the Number of the Freeze-Thaw Cycles

Popis výsledku anglicky

The paper presents the determination of the modulus of elasticity on gypsum samples using the nondestructive impulse excitation method. The great advantage of non-destructive testing, compared to destructive, is that still the same sample is tested and it excludes various negative effects. The paper presents the development of modulus of elasticity on gypsum samples according to the number of freeze-thaw cycles. For cyclic loading, the samples were saturated with water at 20 °C and tested in 8-hour cycles. Samples were removed from the water bath and placed in a freezer with a temperature lower than -20 °C and after 8 hours they were placed again in the water bath for a period of eight hours. The difference from 'dry' frost resistance was that the samples of hardened plaster were exposed to "wet" frost resistance, i.e. to the extreme load of the samples with the external climatic conditions.

Druh

D - Stať ve sborníku

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

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Projekt

<a href="/cs/project/TE01020168" target="_blank" >TE01020168: Centrum pro efektivní a udržitelnou dopravní infrastrukturu (CESTI)</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of the 4th Conference Nano & Macro Mechanics

ISBN

978-80-01-05332-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

211-214

Název nakladatele

Czech Technical University in Prague

Místo vydání

Praha

Místo konání akce

Prague

Datum konání akce

19. 9. 2013

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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