Mechanics, hydration phase and pore development of embodied energy and carbon composites based on ultrahigh-volume low-carbon cement with limestone calcined clay

Engineered cement-based composites exhibit excellent deformability, mechanical behavior, fresh performance and durability. However, the traditional incorporating high volume ordinary Portland cement would lead to carbon footprint. In this study, a new eco-efficient engineered was designed by Polypropylene fibers (PPF) eco-friendly with limestone calcined clay (LC3-ECCs). The LC3-ECCs were analyzed discussed in terms of properties, microscopic morphology, hydration products porosity. study found that 28-days compressive behavior above 44.2 MPa, flexural strength remained 4.8 MPa. Because formation gathering highly polymerized compound (C-S-H gel, C-A-S-H gel) matrix plenty ettringite, bonding effect between PPF LC3 cementitious is better. Additionally, 1.5 % content PP fiber showed less porosity beneficial behavior. This suggests low-carbon has potential be successfully utilized as alternative OPC suitable design sustainable ECCs, construction product can also generally applied into some area abundant sources.