Experimental Testing of Resistance of Ultra-high Performance Concrete to Environmental Loads

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F16%3A00300631" target="_blank" >RIV/68407700:21110/16:00300631 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S1877705816317544" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1877705816317544</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.proeng.2016.07.366" target="_blank" >10.1016/j.proeng.2016.07.366</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental Testing of Resistance of Ultra-high Performance Concrete to Environmental Loads

Popis výsledku v původním jazyce

Ultra-high performance concretes (UHPC) are characterized by high tensile and compressive strength. The high strength is achieved by providing well-graded grain-size distribution curve and by utilization of microfillers. The dense structure of UHPC provides low permeability, which increases resistance of high-performance concrete to aggressive chemical solutions or freeze-thaw cycling. Both these features positively affect the possibilities of utilization of high-performance concrete for outdoor structures. The paper presents the first findings of comprehensive research program focused on the investigation of resistance of UHPC to deicing chemical agents and freeze-thaw cycles. Several series of tests were conducted to compare the behavior of UHPC and reference C40/50 class fibre-reinforced concrete. Several dozen specimens were tested, various load levels were applied. The results have shown that up to certain number of freeze-thaw cycles, the mechanical properties of UHPC are not affected at all. A hypothesis is proposed to explain this outcome of the experiments.

Název v anglickém jazyce

Experimental Testing of Resistance of Ultra-high Performance Concrete to Environmental Loads

Popis výsledku anglicky

Ultra-high performance concretes (UHPC) are characterized by high tensile and compressive strength. The high strength is achieved by providing well-graded grain-size distribution curve and by utilization of microfillers. The dense structure of UHPC provides low permeability, which increases resistance of high-performance concrete to aggressive chemical solutions or freeze-thaw cycling. Both these features positively affect the possibilities of utilization of high-performance concrete for outdoor structures. The paper presents the first findings of comprehensive research program focused on the investigation of resistance of UHPC to deicing chemical agents and freeze-thaw cycles. Several series of tests were conducted to compare the behavior of UHPC and reference C40/50 class fibre-reinforced concrete. Several dozen specimens were tested, various load levels were applied. The results have shown that up to certain number of freeze-thaw cycles, the mechanical properties of UHPC are not affected at all. A hypothesis is proposed to explain this outcome of the experiments.

Druh

D - Stať ve sborníku

CEP obor

JN - Stavebnictví

OECD FORD obor

—

Projekt

<a href="/cs/project/GA14-19561S" target="_blank" >GA14-19561S: Cementové kompozity v náročných podmínkách prostředí</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název statě ve sborníku

Ecology and new building materials and products 2016

ISBN

—

ISSN

1877-7058

e-ISSN

—

Počet stran výsledku

7

Strana od-do

170-176

Název nakladatele

Elsevier Ltd

Místo vydání

Oxford

Místo konání akce

Černá Hora

Datum konání akce

31. 5. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000387482800024