Detail publikace

Use of Spongilites as Pozzolanic Additives in Cement Mortars

VYŠVAŘIL, M. BAYER, P. ŽIŽLAVSKÝ, T.

Originální název

Use of Spongilites as Pozzolanic Additives in Cement Mortars

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

In this study, the utilization of two types of spongilites in various addition in cement mortars has been investigated with the purpose of exploring a new application of this natural pozzolans as cement mortar additives. The influence of the addition of spongilites on the physicomechanical properties, frost-resistance, and microstructure of cement mortars as a function of time was studied. The results revealed that the rising proportion of spongilites in cement mortars causes increase in water retention of mortars, reduction of their bulk density, increase in porosity of mortars due to the growing predominance of capillary pores maintaining sufficient mortars strengths, and slightly increase in the frost-resistance of mortars. After initial tests, partial replacement of cement in fine-grained cement mortars with hitherto unexploited spongilites seems to be very promising. Based on the achieved results, a 20% cement replacement can be recommended as optimal.

Klíčová slova

spongilite; pozzolanic additive; water retention; strengt;, microstructure; porosity; frost resistance; water absorption

Autoři

VYŠVAŘIL, M.; BAYER, P.; ŽIŽLAVSKÝ, T.

Vydáno

11. 10. 2021

Nakladatel

Trans Tech Publications Ltd.

Místo

Switzerland

ISBN

978-3-0357-3870-4

Kniha

Binders, Materials and Technologies in Modern Construction VII

ISSN

1662-9779

Periodikum

Solid State Phenomena

Číslo

325

Stát

Švýcarská konfederace

Strany od

65

Strany do

70

Strany počet

6

URL

https://www.scientific.net/SSP.325.65.pdf

BibTex

@inproceedings{BUT172221,
  author="Martin {Vyšvařil} and Patrik {Bayer} and Tomáš {Žižlavský}",
  title="Use of Spongilites as Pozzolanic Additives in Cement Mortars",
  booktitle="Binders, Materials and Technologies in Modern Construction VII",
  year="2021",
  journal="Solid State Phenomena",
  number="325",
  pages="65--70",
  publisher="Trans Tech Publications Ltd.",
  address="Switzerland",
  isbn="978-3-0357-3870-4",
  issn="1662-9779",
  url="https://www.scientific.net/SSP.325.65.pdf"
}