Author: Muzakir Habib
Habib, Muzakir, 2024 IMPACT OF ACTIVATOR ON MECHANICAL AND DURABILITY PROPERTIES OF DELITHIATED BETA SPODUMENE-BASED GEOPOLYMER, Flinders University, College of Science and Engineering
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This thesis explores the potential of using delithiated beta spodumene (DBS) as a sustainable
alternative to traditional binders in geopolymer, focusing on optimizing the sodium silicate to sodium
hydroxide (SS: SH) ratio as activators to enhance both mechanical and durability properties of
geopolymers. The research systematically investigates various SS: SH ratios, discovering that lower
ratios significantly increase the compressive strength of the geopolymer, achieving up to 32.77 MPa
at 28 days. In contrast, higher ratios effectively reduce water absorption and drying shrinkage, thus
enhancing the material's durability under environmental conditions.
These findings suggest that DBS-enhanced geopolymers not only meet but can exceed traditional
concrete’s performance standards, offering robust and eco-friendly building materials. This research
advocates for the adoption of geopolymer technology in the construction industry, aligning with
global sustainability initiatives by reducing the carbon footprint associated with conventional
concrete production and promoting the reuse of industrial by-products.
The study contributes significantly to the field of sustainable construction materials, providing a
foundation for future investigations into the properties and applications of geopolymers to enhance
their commercial viability and environmental benefits by a local binder in Australia as DBS. Further
research should explore alternative aluminosilicate sources, conduct long-term durability studies, and
perform comprehensive environmental impact assessments to fully harness the potential of
geopolymers in modern construction
Keywords: Concrete, Geopolymer, DBS, Fly Ash
Subject: Engineering thesis
Thesis type: Masters
Completed: 2024
School: College of Science and Engineering
Supervisor: Dr. ALIAKBAR GHOLAMPOUR