Why is polymer-modified mortar and concrete appropriate for use in repair work?

  

This material is not affected by chemical attack or carbonation

Unlike epoxy mortar it will not create isolated pockets of very high strength as compared to existing old concrete.

It is more economical and more user friendly than epoxy when large areas are to be rehabilitated. Cost reduction would be around 33% as compared to epoxy mortar.

Polymer mortars and concrete have fire resistant characteristics similar to that of normal concrete while epoxy mortars can catch fire.

Polymer solution and cement are easily miscible.

In addition to creating a strong physical barrier to prevent chemical attacks it can also mitigate corrosion due to its alkaline nature.

Polymer emulsion in repair concrete. It relieves the internal micro stresses, retards formation and enlargements of cracks and increases the overall strength of concrete.

Polymer helps to block the voids and seal the cracks and thereby substantially reduces the ingress of moisture and chemicals.

Thickness of polymer mortar of the order of 10 to 15 mm over the steel is adequate enough to give excellent protective cover and therefore the balance thickness can be made up with well-controlled plain mortar. Curing plays a relatively less important role in cases where polymer is used.