Behavior and properties of ultra-lightweight concrete with foamed glass aggregate and cellulose fibres under high temperature loading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F23%3APU148028" target="_blank" >RIV/00216305:26110/23:PU148028 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85154038661&origin=resultslist&sort=plf-f" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85154038661&origin=resultslist&sort=plf-f</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jobe.2023.106677" target="_blank" >10.1016/j.jobe.2023.106677</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Behavior and properties of ultra-lightweight concrete with foamed glass aggregate and cellulose fibres under high temperature loading

Popis výsledku v původním jazyce

This study deals with the possibility of the utilization of composite materials with aggregate based on foamed glass bonded with cement. The idea of this study is to effectively use the advantages of the foam glass-based aggregate with a very low bulk density below 160 kg/m3 and a thermal conductivity of 0.069 W/(m.K). Foam glass-based aggregate is mainly made from waste glass that can no longer be recycled and used for the production of pure glass products. The purpose of the research is to produce an ultra-lightweight concrete (ULWC) with high resistance to high temperatures, high temperature attenuation and minimal ecological impact. In an experimental study, glass foam aggregate was bonded with a cementitious sealant with cellulose fibres to obtain an ultra-lightweight concrete with a bulk density in the range of 400–550 kg/m3, a thermal conductivity of lower than 0.1 W/(m·K) and compressive strength in the range of 0.9–2.1 MPa. The ultra-lightweight concrete was exposed to high temperature loading according to standardized fire curve and the effect of high temperature on the microstructure of the concrete was inspect by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The ultra-lightweight concrete with foam glass aggregate reaches high resistance to high temperatures up to 1000 °C as well as a large thermal attenuation over the height of the specimen. Other main advantages include the extremely low weight, which results in minimal static load on the structures due to its own weight, and the use of waste glass for the production of aggregates, which leads to a reduction in the burden on the environment.

Název v anglickém jazyce

Behavior and properties of ultra-lightweight concrete with foamed glass aggregate and cellulose fibres under high temperature loading

Popis výsledku anglicky

This study deals with the possibility of the utilization of composite materials with aggregate based on foamed glass bonded with cement. The idea of this study is to effectively use the advantages of the foam glass-based aggregate with a very low bulk density below 160 kg/m3 and a thermal conductivity of 0.069 W/(m.K). Foam glass-based aggregate is mainly made from waste glass that can no longer be recycled and used for the production of pure glass products. The purpose of the research is to produce an ultra-lightweight concrete (ULWC) with high resistance to high temperatures, high temperature attenuation and minimal ecological impact. In an experimental study, glass foam aggregate was bonded with a cementitious sealant with cellulose fibres to obtain an ultra-lightweight concrete with a bulk density in the range of 400–550 kg/m3, a thermal conductivity of lower than 0.1 W/(m·K) and compressive strength in the range of 0.9–2.1 MPa. The ultra-lightweight concrete was exposed to high temperature loading according to standardized fire curve and the effect of high temperature on the microstructure of the concrete was inspect by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The ultra-lightweight concrete with foam glass aggregate reaches high resistance to high temperatures up to 1000 °C as well as a large thermal attenuation over the height of the specimen. Other main advantages include the extremely low weight, which results in minimal static load on the structures due to its own weight, and the use of waste glass for the production of aggregates, which leads to a reduction in the burden on the environment.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA21-25813S" target="_blank" >GA21-25813S: Studium vlivu organických vláken na vlastnosti cementových kompozitů při extrémním zatěžování</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Journal of Building Engineering

ISSN

2352-7102

e-ISSN

—

Svazek periodika

72

Číslo periodika v rámci svazku

72

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

19

Strana od-do

„“-„“

Kód UT WoS článku

001010849200001

EID výsledku v databázi Scopus

2-s2.0-85154038661