To investigate the influences of three metallic polymeric materials in polyester and acrylic fresh polymer concretes (PCs), PC-incorporatect different levels of these materials have been investigated for their properties of fresh PC. The mix design was made and optimized for workability, strength, and economy, depending on the resin viscosity, the intended use, and the additional quantities of these polymeric materials. The properties investigated include workability, working time, and curing time of fresh PC. It is concluded that these polymeric materials offer the possibility of improving properties of polyester and acrylic fresh polymer concretes. (c) 2005 Wiley Periodicals, Inc. J Appl Polym Sci 99: 2337-2343, 2006