scope:

PREFACE: A total of 24 papers was presented at the four sessions of the symposium. The speakers addressed topics ranging from fundamental laboratory studies of concrete durability to case histories of concrete rehabilitation. This volume has been arranged in three parts. Part I covers the more fundamental aspects and laboratory investigations. Part II covers field studies where concrete is exposed to naturalconditions. Part III covers case histories of the performance and rehabilitation of concrete structures in severeservice environments.

The symposium was noted for its international flavor and for the variety of topics addressed. These included, among others, freeze-thaw resistance, deicer scaling, permeability, corrosion of reinforcement and prestressing, sulfate resistance, microbiologically-induced deterioration, and performance in marine environments. The authors are to be congratulated on the clarity of their presentations and their prompt response to the many requests from the symposium chair.