FAQ 004246 | I want to design a crack width of 0.1 mm in RF‑CONCRETE Surfaces. But when entering "0.10 mm" as the limit value, I get an error message saying that a value between 0.2 to 0.4 mm can only be designed.

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I want to design a crack width of 0.1 mm in RF‑CONCRETE Surfaces. But when entering "0.10 mm" as the limit value, I get an error message saying that a value between 0.2 to 0.4 mm can only be designed.


Please deactivate the "indirect calculation" using the limit diameter "lim ds" or the member spacing "lim sl."

The calculation of crack widths smaller than 0.20 mm is only possible by using the direct calculation according to EN 1992‑1‑1, 7.3.4.


Dlubal FAQ Crack width Crack width control Serviceability limit state SLS Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal


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  • Updated 11/04/2020

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