THERMAL CONDUCTIVITY OF REINFORCED GEOPOLYMER FOAMS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F19%3AN0000035" target="_blank" >RIV/62243136:_____/19:N0000035 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24210/19:00006697

Výsledek na webu

<a href="http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1288" target="_blank" >http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1288</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.13168/cs.2019.0032" target="_blank" >10.13168/cs.2019.0032</a>

Jazyk výsledku

angličtina

Název v původním jazyce

THERMAL CONDUCTIVITY OF REINFORCED GEOPOLYMER FOAMS

Popis výsledku v původním jazyce

Reinforced geopolymer foams were studied in this work as potential building materials. It has been widely assumed that for a given thermal conductivity ? [W•m-1•K-1], geopolymer foams can have a lighter density than other materials. The study sought to test this assumption by comparing the thermal conductivity between geopolymer foams. The thermal conductivity ? was measured using an ISOMET 2014 device. In all the experiments, the geopolymer foams were obtained by adding aluminium powder and several combinations: silica fume and fine sand reinforced by short basalt fibres. Curing was carried out at room temperature and then in a furnace at 70 °C. After the curing process, the properties of the samples were tested at 7 and 28 days. The results show that the thermal conductivity, porosity, compressive strength, flexural strength and density for all of the tests ranged in the following values: 0.13 - 0.359 W•m-1•K-1; 41.8 - 62.5 %; 1.94 - 9 MPa; 0.96 - 2.93 MPa; 546 - 1028 kg•m-3, respectively. It was proven that the filler in the geopolymer foams has a significant influence on the mechanical and physical properties of the tested samples.

Název v anglickém jazyce

THERMAL CONDUCTIVITY OF REINFORCED GEOPOLYMER FOAMS

Popis výsledku anglicky

Reinforced geopolymer foams were studied in this work as potential building materials. It has been widely assumed that for a given thermal conductivity ? [W•m-1•K-1], geopolymer foams can have a lighter density than other materials. The study sought to test this assumption by comparing the thermal conductivity between geopolymer foams. The thermal conductivity ? was measured using an ISOMET 2014 device. In all the experiments, the geopolymer foams were obtained by adding aluminium powder and several combinations: silica fume and fine sand reinforced by short basalt fibres. Curing was carried out at room temperature and then in a furnace at 70 °C. After the curing process, the properties of the samples were tested at 7 and 28 days. The results show that the thermal conductivity, porosity, compressive strength, flexural strength and density for all of the tests ranged in the following values: 0.13 - 0.359 W•m-1•K-1; 41.8 - 62.5 %; 1.94 - 9 MPa; 0.96 - 2.93 MPa; 546 - 1028 kg•m-3, respectively. It was proven that the filler in the geopolymer foams has a significant influence on the mechanical and physical properties of the tested samples.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Ceramics-Silikáty

ISSN

0862-5468

e-ISSN

—

Svazek periodika

63

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

9

Strana od-do

365 - 373

Kód UT WoS článku

000498870600003

EID výsledku v databázi Scopus

2-s2.0-85075266839