| Popis: |
The modelling of concrete properties over the course of the historic development of concrete technology is briefly outlined and related to the current investments in different qualities and amounts of concrete produced in the European Union. A description is given of the neglect of modelling research in relation to improvements in production and research on concrete durability since World War II, while at the same time the use of empirical specimen testing has assumed a decisive position both in quality control and in research. Realistic modelling which can be used to monitor the production process is discussed, exemplified by the monitoring of fresh concrete during pumping and special compaction, and of the curing of concrete. The abolition of empirical testing in quality control and research is considered a dire necessity, although continued use of the conventional methods is envisaged for some years to come. The need for education of engineers and researchers in the discipline of modelling and the application of model laws in other industries is highlighted. |
