ABSTRACT

Proper management of a bridge includes making it as durable as possible and

should be considered in detail at the design stage. Wood (1996), however, has

observed that of the time allocated for a complete bridge design and specifi-

cation, bridge engineers spend typically 1% of the time on durability design,

yet durability faults contribute to over 99% of the deterioration defects in

concrete bridges. In Chapter 1 reference was made to the appalling condition

of many of the worlds bridges simply by neglecting this fundamental

requirement of durability. Hopefully we have all learned from our mistakes

and there is now a culture of prevention rather than cure relating to our

bridge defects. At the heart of this culture is the desire to produce bridges

which are durable.