DURING THEIR LIFE SPAN, CONCRETE STRUCTURES ARE EXPOSED TO INTERNAL AND ENVIRONMENTAL (EXTERNAL) DESTRUCTIVE FACTORS. IN ORDER TO PROTECT THE STRUCTURE AGAINST THESE FACTORS AND PROMOTING ITS LIFE, IT IS NECESSARY TO RESTORE AND REPAIR THE DAMAGES INFLICTED UPON IT. IN GENERAL, FACTORS SUCH AS QUALITY OF REPAIR MATERIAL, AS WELL AS THEIR Adhesion AND COMPATIBILITY WITH THE BASE CONCRETE AFFECT THE PERFORMANCE OF REPAIR MEASURES. IN THIS PAPER, THE RESULTS OF A LABORATORY STUDY IS PRESENTED, IN WHICH THE IMPACT OF FACTORS LIKE INITIAL TREATMENT, SURFACE PREPARATION METHODS AND OILY ENVIRONMENTS WERE STUDIED ON THE Adhesion OF REPAIR CONCRETE WITH A POLYMERIC BASE. IN THIS STUDY, A NUMBER OF BASE CONCRETE SAMPLES WERE PREPARED IN ACCORDANCE WITH THE BS6319 STANDARD, AND WERE THEN REPAIRED USING A NUMBER OF POLYMERIC CONCRETES. AFTER THE TREATMENT STAGE, THE Adhesion OF REPAIR CONCRETE TO THE BASE CONCRETE WAS MEASURED BY THE SLANT SHEAR METHOD, AND COMPARED WITH OTHER METHODS. IN THIS STUDY, THE IMPACT OF USING MICROSILICA WAS ALSO CONSIDERED AND THE RESULTS WERE PRESENTED IN RELEVANT GRAPHS AND TABLES.