Digest 444 is in three parts. This part (Part 1) examines the durability of steel in concrete. It explains the physical, chemical and electrochemical processes involved in the deterioration of reinforced concrete by corrosion; it summarises the mechanisms underlying protection, considers issues associated with the durability management of existing structures, and reviews best practice in designing and specifying reinforced and prestressed concrete for new structures to achieve durable whole-life performance.

With Part 2 on investigation and assessment, and Part 3 on protection and remedial work, it sets out the basic principles of these processes for all those concerned with the design and maintenance of durable structures: owners, tenants on repairing leases, architects, surveyors, engineers, material scientists and contractors. It also examines existing standards of construction and the lessons learned from the investigation of cases of corrosion in concrete.

Digests 263, 264 and 265 are now withdrawn.