Thermal properties of lightweight concrete with scrap tire rubber-based aggregate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F18%3A00322356" target="_blank" >RIV/68407700:21110/18:00322356 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21610/18:00322356

Výsledek na webu

<a href="https://aip.scitation.org/doi/10.1063/1.5047630" target="_blank" >https://aip.scitation.org/doi/10.1063/1.5047630</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1063/1.5047630" target="_blank" >10.1063/1.5047630</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Thermal properties of lightweight concrete with scrap tire rubber-based aggregate

Popis výsledku v původním jazyce

Most of waste tires are landfill disposed, which is the most common method. This method will be drastically reduced in the near future due to the recent introduction of European Union directives that include significant restrictions on this practice in favor of alternatives oriented towards material and energy recovery. One of the possible solutions for the use of scrap tire rubber is to incorporate it into concrete, to replace some of the natural aggregate. This paper is aimed at the thermal performance of a lightweight concrete incorporating high volume of crushed waste tires as partial substitution of natural silica aggregate of the same grain size. In order to quantify the effect of waste tires-base aggregate on concrete properties, a reference concrete mix without waste rubber was studied as well. For the applied crushed waste tire rubber, bulk density, matrix density, and particle size distribution were measured. Specific attention was paid to thermal transport and storage properties of waste rubber that were examined in dependence on compaction time. For the developed lightweight concrete, thermal properties were accessed using transient impulse technique, whereas the measurement was done in dependence on moisture content, at the dry state and at the fully water saturated state. Additionally, the investigated thermal properties were plotted as function of porosity and density. Mechanical resistance was also tested. The tested lightweight concrete was found to be an alternative construction material possessing improved thermal insulation function and sufficient mechanical resistance. Furthermore, the environmental advantages caused by reusing used tires and consequently eliminating their disposal should also be taken into consideration.

Název v anglickém jazyce

Thermal properties of lightweight concrete with scrap tire rubber-based aggregate

Popis výsledku anglicky

Most of waste tires are landfill disposed, which is the most common method. This method will be drastically reduced in the near future due to the recent introduction of European Union directives that include significant restrictions on this practice in favor of alternatives oriented towards material and energy recovery. One of the possible solutions for the use of scrap tire rubber is to incorporate it into concrete, to replace some of the natural aggregate. This paper is aimed at the thermal performance of a lightweight concrete incorporating high volume of crushed waste tires as partial substitution of natural silica aggregate of the same grain size. In order to quantify the effect of waste tires-base aggregate on concrete properties, a reference concrete mix without waste rubber was studied as well. For the applied crushed waste tire rubber, bulk density, matrix density, and particle size distribution were measured. Specific attention was paid to thermal transport and storage properties of waste rubber that were examined in dependence on compaction time. For the developed lightweight concrete, thermal properties were accessed using transient impulse technique, whereas the measurement was done in dependence on moisture content, at the dry state and at the fully water saturated state. Additionally, the investigated thermal properties were plotted as function of porosity and density. Mechanical resistance was also tested. The tested lightweight concrete was found to be an alternative construction material possessing improved thermal insulation function and sufficient mechanical resistance. Furthermore, the environmental advantages caused by reusing used tires and consequently eliminating their disposal should also be taken into consideration.

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

<a href="/cs/project/GA17-04215S" target="_blank" >GA17-04215S: Tepelně izolační kompozity obsahující plniva na bázi odpadních plastů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

THERMOPHYSICS 2018: 23rd International Meeting of Thermophysics 2018

ISBN

9780735417045

ISSN

0094-243X

e-ISSN

—

Počet stran výsledku

6

Strana od-do

"020036-1"-"020036-6"

Název nakladatele

AIP Publishing, APL, the American Institute of Physics

Místo vydání

Melville, NY

Místo konání akce

Smolenice

Datum konání akce

7. 11. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000450557800036