Thesis Abstract

Abstract
Concrete is one of the most widely used construction materials globally, and its production contributes significantly to carbon emissions and natural resource depletion. The optimization of concrete mix design has emerged as a crucial strategy to enhance the sustainability of construction practices by reducing environmental impacts without compromising performance and durability. This thesis investigates the optimization of concrete mix design for sustainable construction practices, focusing on the incorporation of alternative materials, such as supplementary cementitious materials, recycled aggregates, and chemical admixtures. The introduction provides an overview of the background of the study, highlighting the significance of sustainable construction practices in mitigating environmental impacts and meeting the growing demand for eco-friendly building materials. The problem statement identifies the challenges associated with traditional concrete mix design methods and the need for optimization to improve sustainability. The objectives of the study include assessing the performance of alternative materials in concrete mixes, optimizing mix proportions for enhanced sustainability, and evaluating the environmental and economic implications of optimized mix designs. A comprehensive literature review in Chapter Two explores existing research on sustainable concrete mix design, alternative materials, and optimization techniques. The review covers topics such as the properties of supplementary cementitious materials, the influence of recycled aggregates on concrete performance, and the effects of chemical admixtures on fresh and hardened concrete properties. The chapter synthesizes key findings from previous studies to inform the research methodology and guide the optimization process. Chapter Three details the research methodology employed in this study, including experimental procedures, mix design parameters, and testing protocols. The methodology encompasses the selection and characterization of alternative materials, mix proportioning strategies, laboratory testing of concrete specimens, and environmental impact assessments. The chapter outlines the steps taken to optimize concrete mix designs for sustainability, considering factors such as strength, durability, workability, and environmental performance. Chapter Four presents a comprehensive discussion of the findings obtained from the experimental investigations and optimization processes. The chapter evaluates the performance of optimized concrete mix designs in terms of mechanical properties, durability characteristics, and environmental impact indicators. The discussions highlight the benefits of incorporating alternative materials in concrete mixes and the effectiveness of optimization techniques in enhancing sustainability without compromising quality. Finally, Chapter Five provides a summary of the research outcomes, conclusions drawn from the study, and recommendations for future research directions. The conclusion emphasizes the importance of optimizing concrete mix design for sustainable construction practices and highlights the potential for further advancements in this field. The thesis contributes to the body of knowledge on sustainable concrete technology and provides valuable insights for industry professionals, researchers, and policymakers seeking to promote environmentally friendly construction practices. In conclusion, the optimization of concrete mix design for sustainable construction practices is essential for reducing the environmental footprint of the construction industry and advancing towards a more sustainable built environment. This thesis demonstrates the feasibility and benefits of optimizing concrete mix designs through the incorporation of alternative materials and the application of advanced optimization techniques. The findings and recommendations presented in this study offer valuable guidance for improving the sustainability of concrete construction and fostering a more environmentally conscious approach to building design and construction. (Word Count 492)

Thesis Overview