Conbextra UW a flowable under water cementitious grout which exhibits exceptional resistance to washing-out of the cement phase when placed in stationary or moving water.
Typical Applications
- Grouting or concrete reinstatement in submerged conditions such as wharf piles
Advantages
- No risk of significant wash-out of cement phase when placed underwater
- Displaces water effectively
- Gaseous expansion system compensates for shrinkage and settlement in the plastic state
- High early and ultimate strength
- Chloride free
- Pre-packaged needing only on-site addition of water
Key Properties
- 28 day strength @ 20°C dependent on consistency (cube samples) : 53MPa
- Application method : Pump or pour
- Flexural Strength (modulus of rupture) @ 28 days : 88MPa
- Flow characteristics @ 20°C (depending on gap size) (flow trough) : 400mm
- Gap size : 10mm to 80mm above water 10mm to 150mm below water
- Indirect tensile strength @ 28 days : 41MPa
- Movement accommodation factor : >200°C
- Set time : 75 hours
