Do You Need Plasticizer for Mortar?

They can also help prevent mortar shrinkage, which if it occurs, does not only look unsightly in mortar joints but also can allow water ingress. Excessive use of plasticisers can have an adverse effect on the mortar.

Do I need plasticiser in mortar?

Plasticisers are chemicals that are added to mortar mix to give a little more flexibility before setting, which is useful for noticing uneven patches and holes. Plasticiser also makes mortar set stronger, while making it more resistant to frost.

Do I need to add plasticiser to concrete?

Adding 1-2% plasticizer per unit weight of cement is usually sufficient. Adding an excessive amount of plasticizer will result in excessive segregation of concrete and is not advisable. Depending on the particular chemical used, use of too much plasticizer may result in a retarding effect."