ABSTRACT

Abstract Before concrete constructions can be build, a lot of technological tests are required and a number of such tests have to be done during concrete production. This is also true for the aggregates, cement and other constituents of the concretes. The results of these tests have to be studied critically. This judgement, however, has often to be done by engineers who usually are confrontated with problems in construction or ma­ nagement only. For this purpose a judgement system with check-lists was developed.

1 Introduction