ABSTRACT
Radical Concrete Technology. Edited by R K Dhir and P C Hewlett. Published in 1996 by E & FN Spon, 2-6 Boundary Row, London SE1 8HN, UK. ISBN 0 419 21480 1. ABSTRACT. This paper outlines the sequence of events that have to be followed on a large roadworks construction site in order that the Engineer acting on behalf of the Employer can demonstrate compliance of the concrete supplied with the relevant Specification. It sets out the information to be supplied by the Contractor to demonstrate compliance of the constituent materials, the workability, durability and finally the strength of the hardened concrete. It explains how potential problems such as AlkaliSilica Reaction are dealt with. It compares the testing arrangements on a “conventional” contract with those on a Design and Build contract and suggests that irrespective of the type of contract that is used there will always be a need to demonstrate compliance of the concrete used with the Specification. Keywords: Compliance, Specification, Constituent Materials, Workability, Durability, Strength, Alkali-Silica Reaction. Mr W G Shearer BSc, MSc, FICE was the Resident Engineer on the St James Interchange project in Glasgow (value £27.5m) and the M8 Extension contract in Edinburgh (value £40m)—both were Design and Build Projects. Prior to that he worked as Depute Resident Engineer on the M80 Stepps Bypass Contact (value £36m) which was a ‘conventional’ remeasurable contract based on the ICE 5th Edition Conditions of Contract.
