Conbextra HF is a dual shrinkage compensated high flow cementitious precision grout for gap thicknesses up to 125 mm. Conbextra HF has excellent flow retention properties.
Typical Applications
- Precison grouting where high flow and long flow property retention is required
Advantages
- Excellent initial flow and flow retention
- Rapid strength gain facilitates efficient installation and operation of plant
- High ultimate strength and low permeability ensure durability of the hardened grout
- Hydrogen-free gaseous expansion
- Chloride free
- Suitable for pumping or pouring
Key Properties
- 28 day strength @ 20°C dependent on consistency (cube samples) : 60-77MPa
- Application method : Pump or pour
- Chemical resistance : Not resistant to acids - use epoxy grouts
- Flexural Strength (modulus of rupture) @ 28 days : 100MPa
- Gap size : 10mm to 125mm
- Indirect tensile strength @ 28 days : 47MPa
- Service temperature : >200°C
- Set time : 75 hours
- Tack free time : Flow cone 19-25 seconds
