CBR dyn

Since 2008, the dynamic CBR test (California Bearing Ratio) according to TP Gestein-StB Part 5.6 has been undertaken in the laboratory on crushed samples with a maximum grain size of 22 mm and with an oversize portion of not more than 50% as a rule. This test can also be used as an alternative to the static CBR test according to TP BF – StB Part B 7.1 [1]. Due to the short time required, it is used above all during in-house monitoring tests for production control during the manufacture of mineral aggregate mixtures from steel slag. Advantageous in comparison to the CBR test according to TP BF – StB Part B 7.1 [1] is the elimination of the need for the loading frame and the related static loading device.



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