Modern fastening techniques are increasingly being used to transfer loads into concrete and masonry structures. In spite of this fact knowledge of the behaviour of such systems is very limited and there is no generally accepted design method. This book has been written by a group of eminent authors from western Europe, Canada, the USA and Japan and with the specific aim of: - Compiling and comparing published research on the behaviour of fastening systems; - proposing a consistent approach to the design of fastenings based on current empirical and theoretical models; and - developing design methods that account for the effects of fastenings to concrete and masonry structures for all types of load including monotonic, sustained, fatigue, seismic and impact loads as well as the influences of environmental effects. In this report, the behaviour of fastenings in concrete and masonry for the entire range of loading types, as well as the influence of the environmental effects, is reviewed, based on experimental results from various parts of the world. The existing design approaches are compared with the available experimental data, and a consistent design method is recommended. The publication is applicable to both new constructions and the repair and strengthening of existing structures.