Conbextra CB is a highly flowable high strength grout which can be used for various void fill applications including, backfilling behind concrete tunnel segments and bottom up cable bolt grouting applications.
Typical Applications
- Grouting cable bolts
- Back filling tunnel segments
Advantages
- High strength development allows early tensioning of cables
- Gaseous expansion system compensates for shrinkage in the plastic state
- Develops early high strength without the use of chlorides
- Excellent pumpability over both flowable and thixotropic consistencies
Key Properties
- 28 day strength @ 20°C dependent on consistency (cube samples) : 75-100 Mpa
- Application method : Pump or pour
- Flow characteristics @ 20°C (depending on gap size) (flow trough) : Free flowing
- Service temperature : >200°C
- Set time : 75 hours
