[{"data":1,"prerenderedAt":206},["ShallowReactive",2],{"docs:xbeam2d:en:concrete\u002Fenvironmental-class":3},{"id":4,"title":5,"body":6,"description":16,"extension":199,"meta":200,"navigation":201,"path":202,"seo":203,"stem":204,"__hash__":205},"docs_en\u002Fdocs\u002Fxbeam2d\u002Fconcrete\u002Fenvironmental-class\u002Findex.md","Environmental Class",{"type":7,"value":8,"toc":192},"minimark",[9,13,17,24,29,32,38,43,71,76,93,98,118,123,149,154,174,178],[10,11,5],"h1",{"id":12},"environmental-class",[14,15,16],"p",{},"In many cases several environmental classes apply. Here you can enter one or more environmental classes. XBeam2d automatically determines which environmental class is governing for determining the minimum required concrete cover.",[14,18,19],{},[20,21],"img",{"alt":22,"src":23},"Environmental classes","\u002Fdocs-assets\u002Fxbeam2d\u002Fimages\u002Fmilieuklasse.png",[25,26,28],"h2",{"id":27},"classes","Classes",[14,30,31],{},"The environmental classes according to NEN-EN 1992-1-1 table 4.1 are grouped into six categories. One or more classes can be selected per category.",[14,33,34],{},[35,36,37],"strong",{},"1 No risk of corrosion or attack",[14,39,40],{},[35,41,42],{},"2 Corrosion induced by carbonation",[44,45,46,53,59,65],"ul",{},[47,48,49,52],"li",{},[35,50,51],{},"XC1"," - Dry or permanently wet",[47,54,55,58],{},[35,56,57],{},"XC2"," - Wet, rarely dry",[47,60,61,64],{},[35,62,63],{},"XC3"," - Moderate humidity",[47,66,67,70],{},[35,68,69],{},"XC4"," - Cyclic wet and dry",[14,72,73],{},[35,74,75],{},"3 Corrosion induced by chlorides",[44,77,78,83,88],{},[47,79,80,64],{},[35,81,82],{},"XD1",[47,84,85,58],{},[35,86,87],{},"XD2",[47,89,90,70],{},[35,91,92],{},"XD3",[14,94,95],{},[35,96,97],{},"4 Corrosion induced by chlorides from sea water",[44,99,100,106,112],{},[47,101,102,105],{},[35,103,104],{},"XS1"," - Exposed to airborne salt, but not in direct contact with sea water",[47,107,108,111],{},[35,109,110],{},"XS2"," - Permanently under sea water",[47,113,114,117],{},[35,115,116],{},"XS3"," - Tidal, splash and spray zones",[14,119,120],{},[35,121,122],{},"5 Attack by freeze\u002Fthaw cycles",[44,124,125,131,137,143],{},[47,126,127,130],{},[35,128,129],{},"XF1"," - Not fully saturated with water, without de-icing salts",[47,132,133,136],{},[35,134,135],{},"XF2"," - Not fully saturated with water, with de-icing salts",[47,138,139,142],{},[35,140,141],{},"XF3"," - Saturated with water, without de-icing salts",[47,144,145,148],{},[35,146,147],{},"XF4"," - Saturated with water, with de-icing salts or sea water",[14,150,151],{},[35,152,153],{},"6 Chemical attack",[44,155,156,162,168],{},[47,157,158,161],{},[35,159,160],{},"XA1"," - Slightly aggressive chemical environment according to table 2 of EN 206-1",[47,163,164,167],{},[35,165,166],{},"XA2"," - Moderately aggressive environment according to table 2 of EN 206-1",[47,169,170,173],{},[35,171,172],{},"XA3"," - Highly aggressive environment according to table 2 of EN 206-1",[25,175,177],{"id":176},"input","Input",[14,179,180,181,185,186,191],{},"The environmental classes are entered on the tab ",[182,183,184],"em",{},"Cover"," of the concrete profile, separately for the top side and the bottom side. See ",[187,188,190],"a",{"href":189},"\u002Fdocs\u002Fxbeam2d\u002Fconcrete\u002Fprofiles\u002F","Concrete Profiles",".",{"title":193,"searchDepth":194,"depth":194,"links":195},"",3,[196,198],{"id":27,"depth":197,"text":28},2,{"id":176,"depth":197,"text":177},"md",{},true,"\u002Fdocs\u002Fxbeam2d\u002Fconcrete\u002Fenvironmental-class",{"title":5,"description":16},"docs\u002Fxbeam2d\u002Fconcrete\u002Fenvironmental-class\u002Findex","t9cECteebRwE6WjSXbq5tpu8frVpYdj8kM4LwoINLNM",1793711147300]