1986 | OriginalPaper | Buchkapitel
Repair of Concrete Floors with Polymer Modified Cement Mortars
verfasst von : DR. Erhard, GF. Chorinsky
Erschienen in: Adhesion between polymers and concrete / Adhésion entre polymères et béton
Verlag: Springer US
Enthalten in: Professional Book Archive
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The long-term experience with the formulation of repair mortars for concrete, which are exposed to weather and trafic loads, has shown, that the adhesion of modified cement mortars can be explained as follows: Adhesion of cement mortars, which contain oligomeric additives only, is based on cristalline bonding of the cement paste to the old concrete. This bonding cannot be broken by the exposure to water.Adhesion of polymer cement mortars, formulated with thermoplastic polymer dispersions is based on physical interaction, the chemical adhesion is prohibited by the polymer cover on the cement particles.Adhesion of epoxy-modified cement mortars on old concrete is based on physical interaction too. But in contrary to the thermoplastic polymer dispersions the resistance of the epoxy-resin to saponification can be so high, that the bonding to the old concrete can be water resistant over a long period of time.