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
Anglický název
Use of Spongilites as Pozzolanic Additives in Cement Mortars
Jazyk
en
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.
Anglický 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.
Dokumenty
BibTex
@inproceedings{BUT172221,
author="Martin {Vyšvařil} and Patrik {Bayer} and Tomáš {Žižlavský}",
title="Use of Spongilites as Pozzolanic Additives in Cement Mortars",
annote="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.",
address="Trans Tech Publications Ltd.",
booktitle="Binders, Materials and Technologies in Modern Construction VII",
chapter="172221",
howpublished="online",
institution="Trans Tech Publications Ltd.",
number="325",
year="2021",
month="october",
pages="65--70",
publisher="Trans Tech Publications Ltd.",
type="conference paper"
}