That cannot be answered so generally. The concrete must have a minimum temperature of +5 °C when being placed at air temperatures at the installation site from +3 °C. At air temperatures at the installation site below +3 °C, the concrete must have a minimum temperature of +10 °C when being placed. And many other conditions. I’ll send you a link via PM
Did you send me a message? Tuesday to Wednesday it is supposed to be -13 and Wednesday during the day -6. The concrete is supposed to come on Wednesday. That will be canceled, right?