Reviewing the Performance and Uses of Lightweight Geopolymer and Alkali-Activated Composites Incorporating Ceramic, Polymeric, and Lignocellulosic Waste as Aggregates
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Date
2023-12-11
Journal Title
Journal ISSN
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Publisher
University of Eloued
Abstract
As the construction industry moves towards more sustainable practices, the use of
environmentally-friendly and durable materials, ensuring the comfort of buildings and
infrastructure, becomes crucial. In this context, alkali-activated binders (AAB) and
geopolymers (GP) have emerged as important alternatives, with a lower carbon footprint than
conventional Portland cement (OPC). In addition, the integration of lightweight waste-based
aggregates with AAB and geopolymers represents an essential alternative. This combination
produces lightweight composites offering improved mechanical performance and construction
comfort, while helping to reduce the growing amount of waste from various sources. This
paper proposes a comprehensive review of the literature concerning the use of these
lightweight waste-based aggregates in AAB/GP matrices, published between 2012 and 2023,
mainly indexed in the Scopus database.
The literature has catalogued lightweight waste-based aggregates, analyzing their
characteristics and morphology. The impact of the size, quantity and nature of these aggregates
on the properties and performance of the composite material was examined, taking into
account aspects such as workability, mechanical strength, density, as well as thermal and
acoustic insulation. In addition, a bibliometric analysis was carried out to establish
relationships between key terms and collaborations between researchers in this field. This
study highlights the potential of cementitious composites, particularly those incorporating
lightweight waste-based aggregates, as sustainable materials for both structural and nonstructural applications in the construction sector. However, more research is needed to deepen
our understanding of how these composites behave in innovative manufacturing processes,
such as extrusion and 3D printing.
Description
Intervention abstract
Keywords
Lightweight aggregate, Circular economy, Building materials, Alkali activation Geopolymers
Citation
Tarek djedid, Laid Bedadi, tahar Zerig, Abdelhamid Khelifi, Abdelaaziz Logbi, Mohamed Mani. Reviewing the Performance and Uses of Lightweight Geopolymer and Alkali-Activated Composites Incorporating Ceramic, Polymeric, and Lignocellulosic Waste as Aggregates. International Pluridsciplinary PhD Meeting IPPM 23. Faculty of technology. University of Eloued [visited in ../../…]. Available from[ Copy the link here]