Definition - What does Hydraulic Cement mean?
Hydraulic cement refers to a type of material composed of calcined lime and clay that hardens after being mixed with water. It is particularly useful for repairing cracks, fatigue and other deformation on metal surfaces to prevent further infiltration and the onset of corrosion.
Corrosionpedia explains Hydraulic Cement
Hydraulic cement is non-corrosive and a non-shrink substance. It can be applied to metal surfaces as a temporary measure to prevent corrosion-lead degradation. Such a surface should be thoroughly cleaned and prepped prior to cement application to prevent trapping dirt or particles that may cause crevice corrosion.
Hydraulic cement has several advantages, such as:
- Ease of application
- Chemical resistance
- Cost effective maintenance
Hydraulic cement is best applied in environments with minimal temperature variations.