curprev22:5322:53, 24 June 2021 Shinkolobwetalkcontribs 7,906 bytes+4 →Internal attack: Attention: Internal sulfate attack (delayed ettringite formation, DEF) corresponds to a modification of the cement hydration products when T exceeds ~ 65 °C during concrete setting. So, better to rename this section simply as: Excess of gypsum in concreteundo