The most commonly used methods for sand quality control in concrete production are evidently particle size distribution or grading based on sieve analysis. Usually the test results show that the delivered sand is within specification requirements and no further actions are required. The test results are just filed as stated in the quality control scheme. In the era of high performance concrete this procedure is not sufficient. The concrete producers have to know more about the properties of the aggregates used, especially the properties of the sand. Although sand usually accounts for only half of the aggregate volume, it has a pronounced effect through various mechanisms, such as particle packing, specific surface and mineralogy. More detailed information on sand properties helps selecting the most suitable sand quality in case several alternative suppliers are available. It also helps identifying changes in sand properties which may cause production problems.