Use of Spongilites as Pozzolanic Additives in Cement Mortars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F21%3APU141361" target="_blank" >RIV/00216305:26110/21:PU141361 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scientific.net/SSP.325.65.pdf" target="_blank" >https://www.scientific.net/SSP.325.65.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Use of Spongilites as Pozzolanic Additives in Cement Mortars

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Use of Spongilites as Pozzolanic Additives in Cement Mortars

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název statě ve sborníku

Binders, Materials and Technologies in Modern Construction VII

ISBN

978-3-0357-3870-4

ISSN

1662-9779

e-ISSN

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Počet stran výsledku

6

Strana od-do

65-70

Název nakladatele

Trans Tech Publications Ltd.

Místo vydání

Switzerland

Místo konání akce

Brno

Datum konání akce

3. 12. 2020

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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