Durability of Sustainable Ceramics Produced by Alkaline Activation of Clay Brick Residue

Fabiana Pereira da Costa, Izabelle Marie Trindade Bezerra, Jucielle Veras Fernandes, Alisson Mendes Rodrigues, Romualdo Rodrigues Menezes and Gelmires de Araújo Neves
Additional contact information
Fabiana Pereira da Costa: Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande, Campina Grande 58429-900, Brazil
Izabelle Marie Trindade Bezerra: Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande, Campina Grande 58429-900, Brazil
Jucielle Veras Fernandes: Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande, Campina Grande 58429-900, Brazil
Alisson Mendes Rodrigues: Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande, Campina Grande 58429-900, Brazil
Romualdo Rodrigues Menezes: Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande, Campina Grande 58429-900, Brazil
Gelmires de Araújo Neves: Graduate Program in Materials Science and Engineering (PPG-CEMat), Federal University of Campina Grande, Campina Grande 58429-900, Brazil

Sustainability, 2021, vol. 13, issue 19, 1-14

Abstract: Alkali-activated materials (AAMs) were produced using residues from the red ceramic industry as a precursor, and sodium hydroxide (NaOH), potassium hydroxide (KOH), and sodium silicate (Na 2 SiO 3 ) as alkaline activators. The effect of activators and curing conditions on physical-mechanical properties and durability were evaluated. The processing parameters (amount of water and consistency index) and the activation conditions (the activator contents and curing temperature) were defined based on an experimental design getting the flexural rupture module as the response. The durability behavior was evaluated by natural aging, accelerated aging (simulated rain test), exposure to the marine environment (salt fog), and acidic environments (HCl and H 2 SO 4 ). The results showed that the NaOH- and KOH-activated samples exhibited inferior mechanical behavior than those activated with Na 2 SiO 3 . In the durability studies, due to leaching, there was a decrease in mechanical strength when samples are subjected to aggressive exposure conditions. However, the strength values are still higher than the minimum indicated for traditional ceramic applications.

Keywords: ceramic residue; alkaline activation; experimental design; durability tests (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/19/10931/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/19/10931/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:19:p:10931-:d:648076

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().