1. Epoxy Injection: Injecting epoxy resin into cracks to bond and seal them, suitable for structural and non-structural cracks.
2. Polyurethane Injection: Injecting polyurethane resin into cracks to fill and seal them, particularly effective for actively leaking cracks.
3. Concrete Patching: Filling small cracks with a concrete patching compound to restore surface appearance.
4. Overlay Systems: Applying a new layer of concrete or specialized overlay material over existing flooring to cover cracks and provide a fresh, crack-free surface.
5. Routing and Sealing: Creating a groove along the crack, filling it with a sealant to provide a watertight seal, often used for wider and deeper cracks.
6. Carbon Fiber Reinforcement: Applying carbon fiber strips or fabrics to provide added strength and stability to structural cracks.
7. Stitching: Installing metal staples or stitching dogs across a crack to stabilize and align the cracked sections.
8. Gravity Filling: Pouring a liquid repair material into narrow cracks to fill them by gravity and provide a seamless repair.
9. Resin Injection: Injecting specialized resins into cracks to form a bond and seal the crack.
10. Chemical Grouting: Injecting chemical grout or polyurethane foam into actively leaking cracks to expand and provide a watertight seal.
11. Crack Routing and Sealing: Creating a wider and deeper groove along the crack, filling it with a suitable sealant for a durable and flexible repair.
12. Microcrack Repair: Using specialized materials to penetrate and fill microcracks in the concrete to enhance durability.

Each repair method is selected based on factors such as crack type, size, location, and the specific requirements of the project. Consulting with a professional concrete repair contractor is recommended to determine the most suitable method for your concrete crack repair needs