Dynamic measurements for determining mechanical properties of MCC type refractory castable with graphene oxide

Abstract

The results of structure and physical mechanical properties of medium cement content (MCC) refractory castable with graphene oxide obtained by using a laboratory methods SEM, XRD, etc. are discussed in this paper. The addition of graphene oxide causes hydration and structural changes in aluminate cement, by reducing the duration of hydration induction and the formation of new crystallization centers. Also, the increased compressive strength and thermal resistance have a direct effect on the mechanical properties of MCC refractory castable specimens and the higher resistance to chemical corrosion. The usage of resonant methods keeps difficulty to maintain constant MCC refractory castable density and dimension values. Therefore, in order to improve the assessment of MCC refractory castable, it is necessary to refine its mechanical properties (Poisson’s ratio, Young modulus), especially when the addition of graphene oxide is being used. This study allows to refine the formulas used for calculations, allows to better evaluate the internal MCC refractory castable mechanisms, but is also important for solving various tasks of materials modeling by digital methods. A testing stand is presented in Figure next page. The mechanical properties of MCC refractory castable with the addition of graphene oxide were determined on this bench and numerical calculations were performed on the basis of them.