Bond strength evaluation of polymer modified cement mortar incorporated with polypropylene fibers

Bond strength is the adhesion between an overlay and a substrate mortar; it key parameter ensuring durability having monolithic system. A proper bond essential to resist any stresses associated with volume changes, freeze-thaw cycles, vibrations at interface. Polymer-modified cement mortar (PCM) one of most well-known adhesive materials, used widely as binding agent in engineering construction. Two forms PCM were investigated this study. These products are known commercially Sika MonoTop®? 620, form repair material for concrete structures, DCP Cemfix 2CS, which occasionally connect tiles base. The effect polypropylene fiber fractions 0, 0.5, 0.75, 1 % was using three different water-to-binder ratios. total 24 distinct mixes made. material's compressive strength, flexural all determined. each mix assessed Slant-Shear Pull-off test methods. values derived by tests had high correlation, about 85 %. Furthermore, connected 95 86 Slant-Shear, 80 76 Pull-off, respectively.