Influence of Calcination Level of Recycled Gypsum on the Physical Properties of Hardened Gypsum Slurry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F22%3A00356896" target="_blank" >RIV/68407700:21110/22:00356896 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21720/22:00356896

Výsledek na webu

<a href="https://mech.fsv.cvut.cz/ean2021/final-book-ean2021.pdf" target="_blank" >https://mech.fsv.cvut.cz/ean2021/final-book-ean2021.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Calcination Level of Recycled Gypsum on the Physical Properties of Hardened Gypsum Slurry

Popis výsledku v původním jazyce

This article examines the effect of incomplete calcination of wasted recycled hardened gypsum. Waste gypsum originated from the process of recycling plasterboard. As part of the processing, the cardboard is separated from the hardened gypsum and the gypsum is physical and mechanical activated (calcined) by means of high-speed grinding. As part of recycling, there is no complete calcination of hardened gypsum. In the resulting gypsum composite, these uncalcined grains have a fundamental influence on the process of hydration and its resulting physical properties of hardened gypsum slurry. In the research, the percentage of uncalcined grains was simulated by adding non-activated recycled hardened gypsum to the mixture in the required amount from 0 to 1 wt. %. Compressive strength and flexural tensile strength were measured on hardened gypsum slurries measuring 40 x 40 x 160 mm. The possible processing time of gypsum slurry (setting time) was other monitored parameters.

Název v anglickém jazyce

Influence of Calcination Level of Recycled Gypsum on the Physical Properties of Hardened Gypsum Slurry

Popis výsledku anglicky

This article examines the effect of incomplete calcination of wasted recycled hardened gypsum. Waste gypsum originated from the process of recycling plasterboard. As part of the processing, the cardboard is separated from the hardened gypsum and the gypsum is physical and mechanical activated (calcined) by means of high-speed grinding. As part of recycling, there is no complete calcination of hardened gypsum. In the resulting gypsum composite, these uncalcined grains have a fundamental influence on the process of hydration and its resulting physical properties of hardened gypsum slurry. In the research, the percentage of uncalcined grains was simulated by adding non-activated recycled hardened gypsum to the mixture in the required amount from 0 to 1 wt. %. Compressive strength and flexural tensile strength were measured on hardened gypsum slurries measuring 40 x 40 x 160 mm. The possible processing time of gypsum slurry (setting time) was other monitored parameters.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/FW03010054" target="_blank" >FW03010054: Recyklace a přeměna stavebního sádrokartonového odpadu na nové stavební výrobky a aplikace s přidanou hodnotou</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

EAN 2021 59th conference on experimental stress analysis

ISBN

978-80-01-06885-4

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

193-196

Název nakladatele

katedra mechaniky

Místo vydání

Praha

Místo konání akce

Litomyšl

Datum konání akce

29. 9. 2021

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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