Development of sustainable clay-based binder and its' potential for 3D-printing

• Main Author: Liu, Yizhong
• Other Authors: Qian Shunzhi
• Format: Final Year Project
• Language: English
• Published: Nanyang Technological University 2023
• Subjects: Engineering::Civil engineering
• Online Access: https://hdl.handle.net/10356/172828
• Institution: Nanyang Technological University

This report consists of five chapters. The first chapter serves as an introduction, explaining the demand for alternative cementitious materials and types due to the environmental issues associated with traditional concrete production today. It introduces two sustainable materials, LC3 (Limestone Calcined Clay Cement) and GD (Granite Dust). The project primarily focuses on the replacement of OPC (Ordinary Portland Cement) with LC3 and the replacement of Sand with GD. In the second chapter, a comprehensive literature review elaborates on research pertaining to raw materials, material rheology, rheological parameters, and the detection methods. This chapter provides a clearer understanding of the scope of the project and the study of raw materials used. The third chapter discusses the methods, outlining the testing approaches employed to evaluate sample performance. The fourth chapter presents and analyzes the results obtained from rheology tests and compressive strength tests. It also delves into an analysis of possible reasons for variations in results among different samples, aiming to discuss the feasibility of different materials for 3D concrete printing. The results indicate that partial replacement of OPC with LC3 is feasible, but GD is not conducive to 3D printing due to its particle size outcomes. Finally, the fifth section, the conclusion, summarizes the outcomes of the project and offers recommendations for future research based on the current limitations.