Expertsystem för bedömning av bergmaterialens mekaniska egenskaper

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Eva Johansson
Karel Miskovsky

The purpose of this project was to develop an assessment system for crushed rock aggregates mechanical properties based on petrographic properties and use for constructions purposes. Decisive data parameters were identified from research papers and empiric studies. Sampling focused on the most exploited types of rock in Sweden, magmatic and metamorphic rocks. In total 34 types of rock has been analyzed according to petrographic and mechanical properties and the results has been statistical evaluated. The assessment system takes in four selected groups of rock types. Their mechanical properties can with varying certainty be classified according to European standards categories (EN). Furthermore this work also includes explained methods for recording, descriptions and sampling of test objects. And also well documented datasheets with results of petrographic and mechanical analyzes. To improve the certainty of the classifications it is recommended to increase the existing data by testing of more materials.

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