Properties of high-performance fiber-reinforced concrete after thermal treatment at high temperatures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F19%3A00333113" target="_blank" >RIV/68407700:21110/19:00333113 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21610/19:00333113

Výsledek na webu

<a href="https://doi.org/10.17222/mit.2018.050" target="_blank" >https://doi.org/10.17222/mit.2018.050</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.17222/mit.2018.050" target="_blank" >10.17222/mit.2018.050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Properties of high-performance fiber-reinforced concrete after thermal treatment at high temperatures

Popis výsledku v původním jazyce

A complex analysis of the effect of a high-temperature load on the parameters of a high-performance fiber-reinforced concrete (HPFRC) is presented. The HPFRC containing steel fibers was exposed to temperatures of up to 1000 °C. In order to reveal the effect of the elevated temperatures on the concrete performance, its basic physical, mechanical, hygric and thermal properties were determined after the thermal treatment. To observe physical and chemical processes in the HPFRC as a function of temperature, a simultaneous thermal analysis (STA) and a thermodilatometry analysis (TDA) were used. The high-temperature exposure led to an increase in the porosity and pore size and to a significant decrease in the mechanical strength. The values of hygric and thermal properties correspond to the changes in the material structure after the thermal treatment. STA and TDA data showed structural changes of the studied material and allowed identification of critical temperatures for its damage.

Název v anglickém jazyce

Properties of high-performance fiber-reinforced concrete after thermal treatment at high temperatures

Popis výsledku anglicky

A complex analysis of the effect of a high-temperature load on the parameters of a high-performance fiber-reinforced concrete (HPFRC) is presented. The HPFRC containing steel fibers was exposed to temperatures of up to 1000 °C. In order to reveal the effect of the elevated temperatures on the concrete performance, its basic physical, mechanical, hygric and thermal properties were determined after the thermal treatment. To observe physical and chemical processes in the HPFRC as a function of temperature, a simultaneous thermal analysis (STA) and a thermodilatometry analysis (TDA) were used. The high-temperature exposure led to an increase in the porosity and pore size and to a significant decrease in the mechanical strength. The values of hygric and thermal properties correspond to the changes in the material structure after the thermal treatment. STA and TDA data showed structural changes of the studied material and allowed identification of critical temperatures for its damage.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil 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

2019

Kód důvěrnosti údajů

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

Název periodika

Materials and Technology

ISSN

1580-2949

e-ISSN

1580-3414

Svazek periodika

53

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

SI - Slovinská republika

Počet stran výsledku

7

Strana od-do

481-487

Kód UT WoS článku

000476652700004

EID výsledku v databázi Scopus

2-s2.0-85069683050