Due to the increase in demand for cement in recent decades, the research has tended to the eco-cements such as Yeelimite, which is distinguished from other cements by its low carbon emissions. Calcium sulfoaluminate (CSA) cement or yeelimite belongs to the family of cements that have certain advantages over Portland cement (PC): low sintering temperature, reduced CO2 emissions, fast hardening and low shrinkage. The main components of CSA cement are yeelimite (C4A3S in cement notation where C=CaO, A=Al2O3, S=SO3). CSA cement has been used in many applications, such as bridge decks, pipes, concrete, etc. The objective of this work is the preparation and characterization of Yeelimite-based materials from local materials (natural phosphate from Djebel el-Onk), then the study of the physico-chemical and mechanical properties of the prepared materials. On the other hand, different experimental techniques, including density, porosity, shrinkage, Vickers hardness, XRD were used to analyse the formation and transformation of various phases at different temperatures. Through these results, we lighted the possibility of preparing the yeelimite from local materials (natural phosphate).
Key-words: Yeelimite, Portland cement, Natural phosphate, Low CO2 emissions.
Citation
ZEYNEB Hammou ,
Hocine BELHOUCHET ,
,(2022), Preparation and characterization of yeelimite from local materials,The first International Seminar on Materials Synthesis and Environmental Monitoring,university of kasdi merbah ouargla
