Polymer Modified Mortar
Cementitious repair mortar containing polymer additives that improve adhesion, reduce shrinkage and lower permeability compared with plain cement mortar.
On an actual building
It is the standard material for hand-applied concrete repair, because plain mortar shrinks away from the parent concrete at the bond line — which is exactly where the next failure starts.
What we most often have to correct
That any cement mortar will do for patching. Shrinkage at the interface is what makes ordinary mortar repairs fail early.
Where this comes up in our work
Terms that come up alongside this one
- Micro-Concrete
A flowable, shrinkage-compensated cementitious repair material with fine aggregate, poured into formwork to reinstate a concrete section..
- Incipient Anode Effect
New corrosion that begins immediately around a concrete repair patch.
- Curing
Keeping cementitious material adequately moist and at a suitable temperature while it hydrates and develops strength and impermeability..
Polymer Modified Mortar — questions we get asked
What does polymer modified mortar mean in waterproofing?
Cementitious repair mortar containing polymer additives that improve adhesion, reduce shrinkage and lower permeability compared with plain cement mortar.
Why does polymer modified mortar matter on a real project?
It is the standard material for hand-applied concrete repair, because plain mortar shrinks away from the parent concrete at the bond line — which is exactly where the next failure starts.
What do people commonly get wrong about polymer modified mortar?
That any cement mortar will do for patching. Shrinkage at the interface is what makes ordinary mortar repairs fail early.
Have a building showing this?
If a term on this page describes something you are looking at, a site inspection will tell you how far it has gone and what it needs. It costs nothing.
Mon–Fri 08:00–18:00 · Sat 09:00–16:00 · Jogeshwari West