Diatomite Powder as Pozzolana Active Mineral Admixture in Mortar Mix Composition

Kód výsledku v IS VaVaI

RIV/68407700:21110/20:00340014 - isvavai.cz

Výsledek na webu

https://doi.org/10.1063/5.0002563

DOI - Digital Object Identifier

10.1063/5.0002563

Jazyk výsledku

angličtina

Název v původním jazyce

Diatomite Powder as Pozzolana Active Mineral Admixture in Mortar Mix Composition

Popis výsledku v původním jazyce

The aim of the study was investigate the possible use of diatomite powder as a partial replacement of Portland cement in the production of cement mortar. Diatomite was used as 10% and 20% replacement by weight of cement while sand quantity and water dosage were kept constant. The particle size distribution of diatomite was researched on a laser diffraction principle, whereas its pozzolana activity was also studied. For the materials with diatomite as well as for control mortar, basic structural properties, compressive and flexural strengths, freeze–thaw resistance, dynamic modulus of elasticity, sorption and desorption isotherms were measured. The diatomite use led to the decrease in porosity, and thus to the increase in mechanical resistance of the tested mortars. On the other hand, the frost resistance of mortars with incorporated diatomite powder was lower compared to control PC-based mortar. The water vapor storage capacity of diatomite enriched mortars slightly increase compared to the control mix, but the maximum moisture storage remained low in general.

Název v anglickém jazyce

Diatomite Powder as Pozzolana Active Mineral Admixture in Mortar Mix Composition

Popis výsledku anglicky

The aim of the study was investigate the possible use of diatomite powder as a partial replacement of Portland cement in the production of cement mortar. Diatomite was used as 10% and 20% replacement by weight of cement while sand quantity and water dosage were kept constant. The particle size distribution of diatomite was researched on a laser diffraction principle, whereas its pozzolana activity was also studied. For the materials with diatomite as well as for control mortar, basic structural properties, compressive and flexural strengths, freeze–thaw resistance, dynamic modulus of elasticity, sorption and desorption isotherms were measured. The diatomite use led to the decrease in porosity, and thus to the increase in mechanical resistance of the tested mortars. On the other hand, the frost resistance of mortars with incorporated diatomite powder was lower compared to control PC-based mortar. The water vapor storage capacity of diatomite enriched mortars slightly increase compared to the control mix, but the maximum moisture storage remained low in general.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

GA18-07332S: Vlastnosti, trvanlivost a chování lehkých maltových směsí s minerálními plnivy

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

SPECIAL CONCRETE AND COMPOSITES 2019: 16th International Conference

ISBN

978-0-7354-1961-2

ISSN

0094-243X

e-ISSN

1551-7616

Počet stran výsledku

7

Strana od-do

"020024-1"-"020024-7"

Název nakladatele

AIP Conference Proceedings

Místo vydání

New York

Místo konání akce

Lísek, Bystřice nad Pernštejnem

Datum konání akce

16. 10. 2019

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

000557821500028