A mechanistic approach was used to develop improved polymer concrete (PC) for repair of portland cement concrete (PCC). The VEPM binder system (vinyl esters containing acrylonitrile-butadiene copolymer, polar methacrylates, styrene and a silane coupling agent) produced PCs with tensile, flexural and compressive strengths superior to existing polyester PCs. VEPM PCs have excellent bonding characteristics to steel and PCC (both dry and moist), and the bonds are highly resistant to degradation by harsh freeze-thaw-soak cycles. They also have good absorption, chemical resistance and volume shrinkage.