Sustainable Additive Manufacturing—How the Composition of the Cementitious Mix Influences Its Fresh Properties
摘要
One of the most important issues considering civil engineering in additive manufacturing is the material aspect of printed concrete mix. The article aims to check how the composition of a concrete mixture impacts its features. The composition of the concrete mix that is used for 3D printing needs to be properly selected. For this study, three laboratory tests were conducted. The consistency of concrete mixes was examined by slump flow test. The vane shear test was conducted to evaluate yield stress directly, and the slug test was performed to verify the yield stress at the nozzle level and the physical properties of the concrete mixture, including the mass and shape of the extruded material. Then the results for the yield stress of the two methods were compared.