Hi, I'm building a garden wall using concrete blocks with mortar.
The only additive I'm using is Febmix, but I've heard that there are more effective frostproofing agents I can use.
The forecast for the next few days where I live, in Wales, if for just above freezing at night.
I understand that mortar without additives should not be used if the temperature will be about 3 degrees in the following few hours.
I'd appreciate any comments or advice.
Thanks, laurencewithau