Cause
- Restraint to slab movements induces cracks.
- Cold joints
- Deflection
- High silt in concrete
- Improper protection and curing
- Early use
REMEDY IN BRIEF
- Crack width ≥ 0.8mm
- Pouring high bond strength flowable grout
- Crack width 0.8 to 1.2 mm- Low viscosity resin based grout
- Crack width ≤ 1.2mm- opening in strip for, Low viscosity resin based grout, stitching and patching the strip with high strength thin screed system.