Evaluation of quarternary aggregate resources in Norway

The paper refers to some results of recent research in Norway on aggregate/concrete interaction. The objective has been to establish criteria for classification, based on knowledge of the geological origin of the aggregates. The evaluation system developed incorporates an automatic data processing information system and a new method of mineralogical quality classification of sand aggregates. The latter refers primarily to the properties of aggregates determining the water requirement and strength of concrete. The system has been used for evaluating a large number of Quaternary aggregate deposits throughout the country, and the results have been correlated with relevant concrete testing.