Impact of Setting Retarder Incorporation on Foam Concrete Properties

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00359909" target="_blank" >RIV/68407700:21110/22:00359909 - 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

Impact of Setting Retarder Incorporation on Foam Concrete Properties

Popis výsledku v původním jazyce

This study deals with the low stability of the pre-made foam used for foam concrete manufacturing. Previously, it was observed that foam mixed with fresh concrete quickly deteriorates. Such a process in general results in insufficient foam concrete porosity. Based on a US patent, the following solution has been suggested: adding setting retarder into the concrete composition. Four sets of samples were manufactured – a reference sample and three samples containing 0.1, 0.3, and 0.4 wt. % of setting retarder. For those samples, bulk density, strength, and sound absorption were measured. Based on the obtained results, it was decided that setting retarder addition results in better foam stability and therefore in higher total porosity. The best results were provided by the sample containing 0.3 wt. % of retarder.

Název v anglickém jazyce

Impact of Setting Retarder Incorporation on Foam Concrete Properties

Popis výsledku anglicky

This study deals with the low stability of the pre-made foam used for foam concrete manufacturing. Previously, it was observed that foam mixed with fresh concrete quickly deteriorates. Such a process in general results in insufficient foam concrete porosity. Based on a US patent, the following solution has been suggested: adding setting retarder into the concrete composition. Four sets of samples were manufactured – a reference sample and three samples containing 0.1, 0.3, and 0.4 wt. % of setting retarder. For those samples, bulk density, strength, and sound absorption were measured. Based on the obtained results, it was decided that setting retarder addition results in better foam stability and therefore in higher total porosity. The best results were provided by the sample containing 0.3 wt. % of retarder.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/FW03010173" target="_blank" >FW03010173: Vývoj zvukoabsorpčního betonu pro interiérové aplikace</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

Proceedings of PhD Workshop, Department of Concrete and Masonry Structures 2022

ISBN

978-80-01-06989-9

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

17-21

Název nakladatele

katedra betonových a zděných konstrukcí

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

27. 5. 2022

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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