Complex Material Property Identification for Cement Matrix Composites by a Mixed Numerical-Experimental Method

The paper uses a mixed numerical-experimental technique (MNET) to determine material properties of cement matrix composites. The MNET is based on modal analysis of free vibrating plates, and is applied for the case of microconcrete and polymer modified cement matrix. The obtained values for the complex moduli are discussed, as well as the influencing parameters. It is concluded that both stiffness and damping appear to be sensitive parameters for the characterization of concrete materials. It is also noted that the methodology and exploitation of the MNET is somewhat different for concrete than for polymer composite materials, for which the MNET was originally developed.