Publication detail

Use of Spongilites as Pozzolanic Additives in Cement Mortars

VYŠVAŘIL, M. BAYER, P. ŽIŽLAVSKÝ, T.

Original Title

Use of Spongilites as Pozzolanic Additives in Cement Mortars

Type

conference paper

Language

English

Original Abstract

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.

Keywords

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

Authors

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

Released

11. 10. 2021

Publisher

Trans Tech Publications Ltd.

Location

Switzerland

ISBN

978-3-0357-3870-4

Book

Binders, Materials and Technologies in Modern Construction VII

ISBN

1662-9779

Periodical

Solid State Phenomena

Number

325

State

Swiss Confederation

Pages from

65

Pages to

70

Pages count

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"
}