DIMENSIONAL VARIATIONS, CAPILLARY ABSORPTION AND FREEZE-THAW RESISTANCE OF REPAIR MORTARS ADMIXED WITH POLYMERS

The results are presented of an investigation aimed at determining the properties required by cement mortars admixed with polymers to be used as overlays in the repair of concrete structures. Tests were conducted using acrylic latex and epoxy resin as polymer admixtures. The adhesion of the modified mortars to different cement bases was tested under stresses induced by dimensional variations (ageing, thermal cycles), capillary absorption and freeze-thaw resistance.