Effect of steel-PET fiber reinforcement on the fire resistance of reactive powder concrete

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F26%3A0197929" target="_blank" >RIV/00216305:26310/26:0197929 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.icevirtuallibrary.com/doi/epdf/10.1680/jmacr.24.00321" target="_blank" >https://www.icevirtuallibrary.com/doi/epdf/10.1680/jmacr.24.00321</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1680/jmacr.24.00321" target="_blank" >10.1680/jmacr.24.00321</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of steel-PET fiber reinforcement on the fire resistance of reactive powder concrete

Popis výsledku v původním jazyce

The hybrid fiber reinforced ultra-high performance concrete is novel material with exceptional properties. The combination of steel fibers and synthetic fibers provide ultra-high performance concrete with strength while the synthetic fibers provide other useful properties like increase in fire resistance. In this study, the not so often combination of steel and eco-friendly recycled PET fibers is used for the improvement of fire resistance. Manufacturing method which employs the use of vacuum is also rarely used. Firstly, the slump flow and mechanical properties of reference and hybrid ultra-high performance concrete was determined. Then, the fire resistance of these two mixtures was determined. Lastly, the relevance of PET fibers for the increase in fire resistance was studied with backscattered electron microscopy. It was found out that the addition of 0.125 vol. % is beneficial in terms of preventing explosive spalling while having statistically negligible impact on mechanical properties.

Název v anglickém jazyce

Effect of steel-PET fiber reinforcement on the fire resistance of reactive powder concrete

Popis výsledku anglicky

The hybrid fiber reinforced ultra-high performance concrete is novel material with exceptional properties. The combination of steel fibers and synthetic fibers provide ultra-high performance concrete with strength while the synthetic fibers provide other useful properties like increase in fire resistance. In this study, the not so often combination of steel and eco-friendly recycled PET fibers is used for the improvement of fire resistance. Manufacturing method which employs the use of vacuum is also rarely used. Firstly, the slump flow and mechanical properties of reference and hybrid ultra-high performance concrete was determined. Then, the fire resistance of these two mixtures was determined. Lastly, the relevance of PET fibers for the increase in fire resistance was studied with backscattered electron microscopy. It was found out that the addition of 0.125 vol. % is beneficial in terms of preventing explosive spalling while having statistically negligible impact on mechanical properties.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

20100 - Civil engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Magazine of concrete research

ISSN

0024-9831

e-ISSN

1751-763X

Svazek periodika

77

Číslo periodika v rámci svazku

9-10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

541-551

Kód UT WoS článku

001414278000001

EID výsledku v databázi Scopus

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