Abstract Alkali-activated systems belong to the group of alternative inorganic binders in which binder properties are dictated by both aluminosilicate precursor and alkaline activator. In this work, blast furnace slag three different activators, namely sodium hydroxide, water glass, carbonate, were selected. An innovative mixture design based on same concentration alkali (Na + ) 4 mol/dm 3 for ...

In this study, calcined zeolite particles were used as internal curing agent to replace cement and quartz sand simultaneously in Ordinary Portland Cement(OPC) based Engineered Cementitious Composites(ECC) material. The influence of the zeolite-cement replacement on mechanical performance shrinkage materials experimentally investigated. ECC specimens with water-binder ratio 0.2 content 192 kg/m3...

Temperature and early-age mechanical properties in hydrating concrete structures present a significant risk for cracking, having a major impact on concrete durability. In order to tackle these phenomena, a multiscale analysis is formulated. It accounts for a high variety of cement properties, concrete composition, structure geometry and boundary conditions. The analysis consists of two steps. T...

introduction: bone regeneration grafts (brg) are widely used in the treatment of osseous defects and oral surgery. the various techniques and associated success rates of bone augmentation require evaluation by systematic review and meta-analysis of eligible studies. the aim of this systematic review was to compare alveolar bone regeneration in humans using bio-oss and autogenous bone graft. mat...