Thermal properties of lightweight MKPC composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F23%3A00368394" target="_blank" >RIV/68407700:21110/23:00368394 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1063/5.0162844" target="_blank" >https://doi.org/10.1063/5.0162844</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/5.0162844" target="_blank" >10.1063/5.0162844</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal properties of lightweight MKPC composites

Popis výsledku v původním jazyce

Magnesium based cement known for over than 150 years is a clinker-free binder with low environmental impact which is in contrast with widely used Portland cement. Its main advantage is fast setting, durability and high early strength accompanied by a strongly exothermic reaction, which makes the material applicable also at temperatures below zero. On the other hand, fast setting connected with workability restricts the material use on large-scale structures. Therefore it finds use in restoration works, repair of streets and pavements or retrofitting. Moreover, the high durability and chemical inertness allow apply material for encapsulation of hazardous waste. Nowadays effort to reduce the energy consumption of building stocks resulted in a design of new thermal insulation materials. The way how to scale up thermal insulation ability is to use alternative, highly porous aggregates as a replacement of commonly used silica sand. In this study, MKPC (magnesium potassium phosphate cement) was mixed with expanded glass granulate and waste tire rubber. For the hardened composites, structural and thermal properties were experimentally assessed. The results pointed to the considerable decrease in thermal conductivity when using lightweight filler. Additionally, thermal characteristics were observed for 50% and 100% water saturated samples. The obtained data evinced greatly reduced thermal insulation ability due to the moisture presence.

Název v anglickém jazyce

Thermal properties of lightweight MKPC composites

Popis výsledku anglicky

Magnesium based cement known for over than 150 years is a clinker-free binder with low environmental impact which is in contrast with widely used Portland cement. Its main advantage is fast setting, durability and high early strength accompanied by a strongly exothermic reaction, which makes the material applicable also at temperatures below zero. On the other hand, fast setting connected with workability restricts the material use on large-scale structures. Therefore it finds use in restoration works, repair of streets and pavements or retrofitting. Moreover, the high durability and chemical inertness allow apply material for encapsulation of hazardous waste. Nowadays effort to reduce the energy consumption of building stocks resulted in a design of new thermal insulation materials. The way how to scale up thermal insulation ability is to use alternative, highly porous aggregates as a replacement of commonly used silica sand. In this study, MKPC (magnesium potassium phosphate cement) was mixed with expanded glass granulate and waste tire rubber. For the hardened composites, structural and thermal properties were experimentally assessed. The results pointed to the considerable decrease in thermal conductivity when using lightweight filler. Additionally, thermal characteristics were observed for 50% and 100% water saturated samples. The obtained data evinced greatly reduced thermal insulation ability due to the moisture presence.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název statě ve sborníku

AIP Conference Proceedings

ISBN

9780735446557

ISSN

—

e-ISSN

—

Počet stran výsledku

8

Strana od-do

"020011-1"-"020011-8"

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Dalešice

Datum konání akce

4. 10. 2022

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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