Properties of alkali-activated composite materials derived from red-clay ceramics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00348848" target="_blank" >RIV/68407700:21110/20:00348848 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.5593/sgem2020/6.1/s26.056" target="_blank" >https://doi.org/10.5593/sgem2020/6.1/s26.056</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5593/sgem2020/6.1/s26.056" target="_blank" >10.5593/sgem2020/6.1/s26.056</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Properties of alkali-activated composite materials derived from red-clay ceramics

Popis výsledku v původním jazyce

The massive depletion of natural resources, together with the inefficient use of end-of- life materials, results in the generation of vast amounts of waste. The waste material recycling poses a challenge for the present generation and alteration of current material streams needs to be reconsidered to mitigate the consequent environmental burdens. The construction industry produces several millions of tons of brick debris which remain landfilled or, at the best, are used as a substitute for natural aggregates. However, these intentions usually lead to material downcycling, which does not provide significant environmental benefits. In this paper, several alkali-activated composite materials derived from red-clay ceramic waste are designed and their properties are analyzed. The design procedure takes into account variations in the dosage of alkaline activators of different types. The hardening process of the prepared alkali-activated composite mixtures is monitored using the determination of initial and final setting times. The properties in the hardened state are assessed by the measurement of bulk density, matrix density, open porosity, compressive strength, and flexural strength. The experimental results show that the designed alkali-activated composite materials have both basic physical properties and mechanical parameters comparable with cement based composites and can thus serve as their environmental friendlier substitutes.

Název v anglickém jazyce

Properties of alkali-activated composite materials derived from red-clay ceramics

Popis výsledku anglicky

The massive depletion of natural resources, together with the inefficient use of end-of- life materials, results in the generation of vast amounts of waste. The waste material recycling poses a challenge for the present generation and alteration of current material streams needs to be reconsidered to mitigate the consequent environmental burdens. The construction industry produces several millions of tons of brick debris which remain landfilled or, at the best, are used as a substitute for natural aggregates. However, these intentions usually lead to material downcycling, which does not provide significant environmental benefits. In this paper, several alkali-activated composite materials derived from red-clay ceramic waste are designed and their properties are analyzed. The design procedure takes into account variations in the dosage of alkaline activators of different types. The hardening process of the prepared alkali-activated composite mixtures is monitored using the determination of initial and final setting times. The properties in the hardened state are assessed by the measurement of bulk density, matrix density, open porosity, compressive strength, and flexural strength. The experimental results show that the designed alkali-activated composite materials have both basic physical properties and mechanical parameters comparable with cement based composites and can thus serve as their environmental friendlier substitutes.

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/GA19-01982S" target="_blank" >GA19-01982S: Alkalicky aktivované aluminosilikátové kompozity na bázi keramických prekurzorů</a><br>

Návaznosti

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

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název statě ve sborníku

20th International Multidisciplinary Scientific Geoconference SGEM 2020

ISBN

978-619-7603-04-0

ISSN

1314-2704

e-ISSN

—

Počet stran výsledku

8

Strana od-do

427-434

Název nakladatele

International Multidisciplinary Scientific GeoConference SGEM

Místo vydání

Sofia

Místo konání akce

Albena

Datum konání akce

16. 8. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—