Detail publikace

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

BUBENÍK, J. ZACH, J. KŘÍŽOVÁ, K. NOVÁK, V. SEDLMAJER, M. ŽIŽKOVÁ, N.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

Ultra-lightweight concrete (ULWC); Foam glass aggregates; Cellulose fibres; Fire resistance; SEM; XRD

Autoři

BUBENÍK, J.; ZACH, J.; KŘÍŽOVÁ, K.; NOVÁK, V.; SEDLMAJER, M.; ŽIŽKOVÁ, N.

Vydáno

28. 4. 2023

Nakladatel

ELSEVIER

Místo

RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS

ISSN

2352-7102

Periodikum

Journal of Building Engineering

Ročník

72

Číslo

72

Stát

Nizozemsko

Strany počet

19

URL

https://www.scopus.com/record/display.uri?eid=2-s2.0-85154038661&origin=resultslist&sort=plf-f

BibTex

@article{BUT183343,
  author="Jan {Bubeník} and Jiří {Zach} and Klára {Křížová} and Vítězslav {Novák} and Martin {Sedlmajer} and Nikol {Žižková}",
  title="Behavior and properties of ultra-lightweight concrete with foamed glass aggregate and cellulose fibres under high temperature loading",
  journal="Journal of Building Engineering",
  year="2023",
  volume="72",
  number="72",
  pages="19",
  doi="10.1016/j.jobe.2023.106677",
  issn="2352-7102",
  url="https://www.scopus.com/record/display.uri?eid=2-s2.0-85154038661&origin=resultslist&sort=plf-f"
}