Experimental investigation on effects of elastomer components on dynamic and mechanical properties in seismic isolator compounds

Elastomeric bearings are becoming a preferred device for isolating bridges, buildings, and sensitive equipment structures. The technical specifications used to procure these isolators are considered as important factors for the consumers. Lack of communication between structural engineers and rubber technologists, causes structural engineers have slight understanding of rubber properties. In the present study, a number of compounds were initially designed and manufactured, based on a previously studied and manufactured isolator compound. The outcome of the experiments indicated the physical and mechanical properties. Afterwards, the targeted improvement led to modification of the compounds formula. Finally, the dynamic shear properties of compounds were obtained from ISO standard tests and the comparison between results, revealed the effect of compound components.