In this research, inorganic water-stop agents were suggested in order to prevent water leakage of architectural concrete structures. This study was focused on the development of a high-performance inorganic water-stop agent based on the lowpressure injection method. Results from mock-up tests through water-stop constructions on reinforced concrete structures with and without cracks showed that the developed agent has swelling effects on cold joints, water leakage cracks and wet cracks around through cracks. It was confirmed that it could be possible to manufacture a new type of inorganic crack repair material that could fill cracked areas in structures.

Keywords: Inorganic water-stop agent, Crack, Water leakage, Repair materials.