Use of Chalcedonite Powder as a Supplementary Material in Lime Mortars

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F22%3APU145683" target="_blank" >RIV/00216305:26110/22:PU145683 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Use of Chalcedonite Powder as a Supplementary Material in Lime Mortars

Popis výsledku v původním jazyce

This paper presents a study on partial replacement of lime binder with chalcedonite powder with the purpose of exploring a new application of this waste dust as lime mortar additive. Chalcedonite powder is formed as a by-product of the treatment of mined stone containing chalcedony as the main mineral. Standard air lime mortars were made by incorporating from 0% to 40% of micronized chalcedonite powder in replacement to lime and their mechanical performances, microstructure, and durability were determined. Despite the fully crystalline nature, the chalcedonite powder showed an unusually high pozzolanic activity predicting an improvement in the mechanical properties and durability of lime mortars. As the replacement level in lime mortars increased, the amount of mixing water needed for the same mortar consistency decreased, and the performance properties of the mortars improved. The increase in strengths of mortars was manifested in the long term of 180 days. The progress in mortars carbonation, as well as the pozzolanic reaction of chalcedonite powder, led to the formation of denser, less water absorptive, and more frost resistant structure in air lime mortars.

Název v anglickém jazyce

Use of Chalcedonite Powder as a Supplementary Material in Lime Mortars

Popis výsledku anglicky

This paper presents a study on partial replacement of lime binder with chalcedonite powder with the purpose of exploring a new application of this waste dust as lime mortar additive. Chalcedonite powder is formed as a by-product of the treatment of mined stone containing chalcedony as the main mineral. Standard air lime mortars were made by incorporating from 0% to 40% of micronized chalcedonite powder in replacement to lime and their mechanical performances, microstructure, and durability were determined. Despite the fully crystalline nature, the chalcedonite powder showed an unusually high pozzolanic activity predicting an improvement in the mechanical properties and durability of lime mortars. As the replacement level in lime mortars increased, the amount of mixing water needed for the same mortar consistency decreased, and the performance properties of the mortars improved. The increase in strengths of mortars was manifested in the long term of 180 days. The progress in mortars carbonation, as well as the pozzolanic reaction of chalcedonite powder, led to the formation of denser, less water absorptive, and more frost resistant structure in air lime mortars.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA21-06582S" target="_blank" >GA21-06582S: Experimentální a počítačová analýza transportu, akumulace a krystalizace solí v nehydrofobizovaných omítkových maltách</a><br>

Návaznosti

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

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název statě ve sborníku

Book of Articles of 9th Euro-American Congress on Construction Pathology, Rehabilitation Technology and Heritage Management, REHABEND 2022

ISBN

978-84-09-42253-1

ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

1314-1320

Název nakladatele

UNIVERSITY OF CANTABRIA

Místo vydání

SANTANDER (SPAIN)

Místo konání akce

Granada

Datum konání akce

13. 9. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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