Hydrophobic Impregnation as an Effective Way to Increase the Resistance of High Strength Concrete (HSC) Bridge Beams to Frost and Defrosting Salt Attack

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21610%2F13%3A00205717" target="_blank" >RIV/68407700:21610/13:00205717 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.2749/222137813806521081" target="_blank" >http://dx.doi.org/10.2749/222137813806521081</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.2749/222137813806521081" target="_blank" >10.2749/222137813806521081</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hydrophobic Impregnation as an Effective Way to Increase the Resistance of High Strength Concrete (HSC) Bridge Beams to Frost and Defrosting Salt Attack

Popis výsledku v původním jazyce

HSC (High Strength Concrete) is increasingly used for bearing bridge structures nowadays. Bridge structures in the Czech Republic are exposed to severe conditions in winter time. Durability of the concrete is therefore a crucial requirement for bridge structures in the Czech Republic. The design and production of HSC concrete resistant to deterioration caused by freezing, thawing, and de-icing salt sometimes raises difficulties. The possibility of improving the frost resistance of HSC by applying a hydrophobic agent will be discussed here on the basis of an example of dealing with the poor frost resistance of concrete C70/85 applied to real bridge bearing beams. Hydrophobic impregnation of the building structure is one option for protecting this porous construction material against contact with water and hydrous salt water solutions, and also against grease and impurities. This paper presents the results of comparative tests of four hydrophobic impregnations in order to chose one for use to increase the resistance of the concrete of a real bridge structure.

Název v anglickém jazyce

Hydrophobic Impregnation as an Effective Way to Increase the Resistance of High Strength Concrete (HSC) Bridge Beams to Frost and Defrosting Salt Attack

Popis výsledku anglicky

HSC (High Strength Concrete) is increasingly used for bearing bridge structures nowadays. Bridge structures in the Czech Republic are exposed to severe conditions in winter time. Durability of the concrete is therefore a crucial requirement for bridge structures in the Czech Republic. The design and production of HSC concrete resistant to deterioration caused by freezing, thawing, and de-icing salt sometimes raises difficulties. The possibility of improving the frost resistance of HSC by applying a hydrophobic agent will be discussed here on the basis of an example of dealing with the poor frost resistance of concrete C70/85 applied to real bridge bearing beams. Hydrophobic impregnation of the building structure is one option for protecting this porous construction material against contact with water and hydrous salt water solutions, and also against grease and impurities. This paper presents the results of comparative tests of four hydrophobic impregnations in order to chose one for use to increase the resistance of the concrete of a real bridge structure.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20102 - Construction engineering, Municipal and structural engineering

Projekt

<a href="/cs/project/GBP105%2F12%2FG059" target="_blank" >GBP105/12/G059: Kumulativní časově závislé procesy ve stavebních materiálech a konstrukcích</a><br>

Návaznosti

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

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název statě ve sborníku

IABSE Rotterdam Conference Report

ISBN

978-3-85748-123-9

ISSN

—

e-ISSN

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Počet stran výsledku

2

Strana od-do

464-465

Název nakladatele

IABSE

Místo vydání

Zürich

Místo konání akce

Rotterdam

Datum konání akce

6. 5. 2013

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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