Project objectives and activities
The main objective of the present project is to develop and test new cement-based nanocomposite materials for 3D printing applications. A secondary objective is to establish a method for rapid determination of the “open time” for the cement-based materials used in 3D printing applications. In order to reach these objective, systematic investigations via various experimental techniques will be considered in the proposed research. Thus, NMR relaxometry studies
will be performed to gain information about the influence of different parameters on hydration kinetics and pore size evolution. The results of NMR studies will be compared with the classical slump tests and determination of the initial and final setting time using a Vicat apparatus. Compressive and flexural test measurements will be considered to extract information about the hardened products. Moreover, the structural information will be obtained using X-ray diffraction. The outcomes of all these techniques will be compared for the developing of the new 3D printable materials.
The specific objectives/budget:
O1: Determining the effect of accelerators on the hydration process, porosity, flexural and compressive strength of cement paste (Year 2020; Budget:398048 lei);
O2: Determining the influence of silica fume on the hydration process, porosity, flexural and compressive strength of the cement mixture (Year 2022; Budget: 380015 lei);
O3: Determining the influence of clay on the sample characteristics and formulation of an optimal combination of ingredients for a 3D printing mortar (Year 2023; Budget: 419969 lei).
The main objective of the present project is to develop and test new cement-based nanocomposite materials for 3D printing applications. A secondary objective is to establish a method for rapid determination of the “open time” for the cement-based materials used in 3D printing applications. In order to reach these objective, systematic investigations via various experimental techniques will be considered in the proposed research. Thus, NMR relaxometry studies
will be performed to gain information about the influence of different parameters on hydration kinetics and pore size evolution. The results of NMR studies will be compared with the classical slump tests and determination of the initial and final setting time using a Vicat apparatus. Compressive and flexural test measurements will be considered to extract information about the hardened products. Moreover, the structural information will be obtained using X-ray diffraction. The outcomes of all these techniques will be compared for the developing of the new 3D printable materials.
The specific objectives/budget:
O1: Determining the effect of accelerators on the hydration process, porosity, flexural and compressive strength of cement paste (Year 2020; Budget:398048 lei);
O2: Determining the influence of silica fume on the hydration process, porosity, flexural and compressive strength of the cement mixture (Year 2022; Budget: 380015 lei);
O3: Determining the influence of clay on the sample characteristics and formulation of an optimal combination of ingredients for a 3D printing mortar (Year 2023; Budget: 419969 lei).