Hybrid Fiber Reinforced HPC at Elevated Temperatures - Analysis of Thermal Properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322341" target="_blank" >RIV/68407700:21110/18:00322341 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1063/1.5043884" target="_blank" >http://dx.doi.org/10.1063/1.5043884</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5043884" target="_blank" >10.1063/1.5043884</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Hybrid Fiber Reinforced HPC at Elevated Temperatures - Analysis of Thermal Properties

Popis výsledku v původním jazyce

Hybrid fiber reinforcement, based on a combination of steel and polymer fibers, is generally accepted by concrete community as a functional solution preventing spalling. For fire safety and effective structural design, knowledge of concrete properties retained after temperature exposure as well as of material parameters accessed directly at high temperatures is of the particular importance for civil engineers and practitioners. On this account, temperature dependent specific heat capacity of hybrid fiber reinforced high performance concrete is investigated in the paper using the inverse analysis of sample response to elevated temperatures. For the measurement, a novel non-adiabatic method was developed and used in the temperature range from 25 °C to 1000 °C. Except temperature dependent specific heat capacity, basic physical properties were accessed for samples thermally treated for 2 hours at the temperatures of 200 °C, 400 °C, 600 °C, 800 °C, and 1000 °C respectively. The acquired specific heat capacity exhibited a high dependence on temperature and several structural changes that concrete underwent at elevated temperatures. Similarly, the material parameters accessed after thermal load clearly pointed to the concrete damage and crucial temperatures affecting concrete performance and durability.

Název v anglickém jazyce

Hybrid Fiber Reinforced HPC at Elevated Temperatures - Analysis of Thermal Properties

Popis výsledku anglicky

Hybrid fiber reinforcement, based on a combination of steel and polymer fibers, is generally accepted by concrete community as a functional solution preventing spalling. For fire safety and effective structural design, knowledge of concrete properties retained after temperature exposure as well as of material parameters accessed directly at high temperatures is of the particular importance for civil engineers and practitioners. On this account, temperature dependent specific heat capacity of hybrid fiber reinforced high performance concrete is investigated in the paper using the inverse analysis of sample response to elevated temperatures. For the measurement, a novel non-adiabatic method was developed and used in the temperature range from 25 °C to 1000 °C. Except temperature dependent specific heat capacity, basic physical properties were accessed for samples thermally treated for 2 hours at the temperatures of 200 °C, 400 °C, 600 °C, 800 °C, and 1000 °C respectively. The acquired specific heat capacity exhibited a high dependence on temperature and several structural changes that concrete underwent at elevated temperatures. Similarly, the material parameters accessed after thermal load clearly pointed to the concrete damage and crucial temperatures affecting concrete performance and durability.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA15-05791S" target="_blank" >GA15-05791S: Analýza fyzikálních a chemických procesů při vysokoteplotním zatížení vysokohodnotných cementových kompozitů s hybridní vláknovou výztuží</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of International Conference on Numerical Analysis and Applied Mathematics 2017 (ICNAAM-2017)

ISBN

978-0-7354-1690-1

ISSN

—

e-ISSN

0094-243X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Thessaloniki

Datum konání akce

25. 9. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000445105400216