Effect of Cu-Zn coated steel fibers on high temperature resistance of reactive powder concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F19%3A00502032" target="_blank" >RIV/61388980:_____/19:00502032 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21110/19:00328181

Výsledek na webu

<a href="http://hdl.handle.net/11104/0293984" target="_blank" >http://hdl.handle.net/11104/0293984</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cemconres.2018.12.008" target="_blank" >10.1016/j.cemconres.2018.12.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Cu-Zn coated steel fibers on high temperature resistance of reactive powder concrete

Popis výsledku v původním jazyce

Even though many studies have reported about the impacts of shape, length and distribution of steel fiber reinforcement on global concrete properties, there is a lack of information about the influence of coating type of steel fibers on high temperature resistance of concrete. This paper describes the effect of Cu-Zn coated steel fibers on selected properties of reactive powder concrete (RPC) after exposure to elevated temperatures. The initial corrosion of zinc in Cu-Zn surface layer is found to be already activated by the alkaline environment of the fresh concrete. The RPC samples reinforced with Cu-Zn coated steel fibers are heated to 600 degrees C and 1000 degrees C, and the influence of thermal load on microstructure, basic physical, mechanical, thermal and durability properties is analyzed. Based on the obtained results, it can be concluded that the maximal temperature to maintain effectiveness of the RPC reinforced with Cu-Zn steel fibers is 600 degrees C.

Název v anglickém jazyce

Effect of Cu-Zn coated steel fibers on high temperature resistance of reactive powder concrete

Popis výsledku anglicky

Even though many studies have reported about the impacts of shape, length and distribution of steel fiber reinforcement on global concrete properties, there is a lack of information about the influence of coating type of steel fibers on high temperature resistance of concrete. This paper describes the effect of Cu-Zn coated steel fibers on selected properties of reactive powder concrete (RPC) after exposure to elevated temperatures. The initial corrosion of zinc in Cu-Zn surface layer is found to be already activated by the alkaline environment of the fresh concrete. The RPC samples reinforced with Cu-Zn coated steel fibers are heated to 600 degrees C and 1000 degrees C, and the influence of thermal load on microstructure, basic physical, mechanical, thermal and durability properties is analyzed. Based on the obtained results, it can be concluded that the maximal temperature to maintain effectiveness of the RPC reinforced with Cu-Zn steel fibers is 600 degrees C.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Cement and Concrete Research

ISSN

0008-8846

e-ISSN

—

Svazek periodika

117

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

45-57

Kód UT WoS článku

000458468700005

EID výsledku v databázi Scopus

2-s2.0-85058820578