scope:

Specifies a laboratory method of test under onerous conditions for determining the durability of masonry mortars containing mineral binders, with cement comprising greater than 50 % of the total binder mass, and normal, as well as lightweight aggregates. The method may also be applicable to mortar beds taken from existing structures. The method determines the resistance of mortars prepared in the laboratory or sampled from fresh batches placed between standard substrates with negligible suction, to freeze/thaw action, sulfate attack or a combination of both.