This report presents a brief overview of recent developments in evaluating the long term performance of selected human made materials (copper based metals, glasses and concrete). It summarizes the results of several studies which contribute to the information base on anthropogenic analogues. Although the primary intention was to promote development of an engineered system of geological repositories, some data are relevant to the performance of barriers considered when designing near surface disposal facilities. It is also expected that the published results may provide other workers in the field with an insight into the potential of the studied materials for their long term uses in constructions long term and for their exposure to extreme environmental conditions.
