ABSTRACT

The work has been undertaken on three separate fronts. An enquiry has taken place into the experience with different cement types for various applications in European countries; experimental work has been started to assess the suitability of the RILEM test for carbonation as a means of assessing the corrosion protection performance of cements; and a further work programme has just started to investigate chloride corrosion. Details are as follows:

8.1 Enquiry on the use of different cement types according to ENV 197-1 in plain, post-

tensioned and pre-tensioned concrete in different countries

The conclusion of the enquiry is that except for a very few cases there were no discriminatory measures for cement with respect to prevention of corrosion of reinforcement. It states that this does not imply that all traditional and well tried cements are equally fit to prevent corrosion under all practical circumstances and it may well be that a cement which behaves well under Scandinavian conditions may not do so well under Mediterranean conditions, and vice versa. It also points out that a cement may be well tried under indoor conditions and never under outdoor or in reinforced and never un-reinforced concrete.