The amount to be used should be determined according to the level of compensation for the desired shrinkage in the mortar or concrete.
The effectiveness of shrinkage compensation depends on several factors: the dosage of XP MAG, the water/cement ratio, the water environment, and the type and content of the cement. Performance is also influenced by the mixing time, temperature, and curing method and duration. Part of this reaction occurs when the mixture is still in a plastic state. For this reason, the amount of XP MAG to be used should be tested beforehand, taking into account the mentioned factors.