LC³ cement production - systematic literature review and preliminary study using calcined clay from regional soil

LC³ Cement (Limestone Calcined Clay Cement) has established itself as an innovative and sustainable solution for the construction industry, offering a low-carbon alternative to conventional Portland cement (OPC). The formulation of this cement, as well as its applications, are frequently studied to enhance its efficiency. In this context, this study aims to contribute to the understanding of LC³ cement by incorporating regionally available raw materials into its formulation, providing a foundation for guiding future research on the subject. To achieve this, a systematic literature review was conducted, focusing on LC³ cement and cementitious materials incorporating various components, such as calcined clays and metakaolin, comparing the impact of these additions on the properties of the mix. Furthermore, based on the information gathered from the review, a preliminary study was carried out using calcined clay obtained from soil extracted in the city of Londrina, Paraná. Mortars with different levels of calcined clay and metakaolin additions were prepared, and their influence on compressive strength, as well as the impact of calcined clay addition on cement reactivity, was evaluated. The preliminary results indicate that the calcined clay from regional soil has potential for LC³ cement production. Thus, this study reinforces the role of research on alternative materials in the cement industry, highlighting the potential of using regional raw materials to produce more sustainable and efficient cements. Additionally, it underscores scientific advancements in LC³ cement and the possibility of its regional production.