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 only a value between 0.2 to 0.4 mm can be designed.

Question

I want to design a crack width of 0.1 mm in RF&#8209;CONCRETE Surfaces. But when entering "0.10&nbsp;mm" as the limit value, I get an error message saying that only&nbsp;a value between 0.2 to 0.4&nbsp;mm can be designed.

Accepted Answer

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&nbsp;mm is only possible using direct calculation according to EN&nbsp;1992‑1‑1, 7.3.4.

Question

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 only a value between 0.2 to 0.4 mm can be designed.