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    Performance of slag-volcanic ash-based geopolymer composites with different curing temperatures
    (İstanbul Gedik Üniversitesi, Lisansüstü Eğitim Enstitüsü, 2024) Al-Saedi, Marwah Saad Hussein; Ghasemlounia, Redvan; Mehmetoğlu, Metin
    This topic focuses on investigating the performance of geopolymer composites using slag and volcanic ash as precursors, with an emphasis on how different curing temperatures affect their properties. Geopolymer composites, renowned for their sustainability and durability, have garnered considerable attention in the construction industry. This study delves into the performance of geopolymer composites utilizing slag and volcanic ash as primary precursors while exploring the influence of varying curing temperatures. The research aims to decipher the intricate interplay between curing temperature and material properties, focusing on mechanical performance, microstructural characteristics, and durability. A comprehensive literature review sets the stage by summarizing the evolving landscape of geopolymer materials and the significance of curing conditions. Subsequently, the research objectives are delineated, including the assessment of compressive strength, flexural strength, ultrasonic pulse velocity, and freezing-thawing cycles, and the resistance of geopolymer composites to deleterious factors such as acid attack. The methodology encompasses meticulous preparation of slag-volcanic ash-based geopolymer samples, employing a range of curing temperatures that span from ambient conditions to elevated levels. Mechanical tests, microstructural analyses, and durability assessments are conducted systematically. Results elucidate the intricate relationship between curing temperature variations and material properties, offering valuable insights into the optimization of geopolymer composites for sustainable construction applications. The discussion section dissects the findings in the context of geopolymer composite performance, highlighting the implications of varying curing temperatures on mechanical strength, microstructure, and durability. Comparative analyses with existing literature augment the understanding of geopolymerization processes and curing temperature effects. Geopolymer composites represent a paradigm shift in the construction industry, offering an eco-friendly and high-performance alternative to traditional cement-based materials. Their significance in sustainable construction is underscored by their reduced carbon footprint, efficient use of industrial by-products, enhanced durability, and potential to contribute to a more sustainable and resilient built environment. As the world grapples with the challenges of climate change and resource depletion, geopolymer composites offer a promising solution for a more sustainable future in construction. Both slag and volcanic ash serve as promising precursors for geopolymerization in the creation of sustainable construction materials. Slag offers the advantage of being an industrial by-product, while volcanic ash is a naturally occurring material with low environmental impact. When activated with alkaline solutions, these precursors can form geopolymeric matrices with excellent mechanical properties, durability, and resistance to environmental stressors, making them valuable components in the pursuit of greener and more resilient construction materials. The choice of curing temperature in geopolymerization is a critical factor that influences various material properties, including compressive strength, microstructure, durability, setting time, and environmental impact. The selection of an appropriate curing temperature should align with the specific requirements of the construction application and the desired material properties.