Alkali-free setting accelerator for shotcrete. High-yield version for medium-high thicknesses,
DRANITE AF 890 is a liquid alkali-free setting accelerator for shotcrete and sprayed mortar.
DRANITE AF 890 will ensure short setting times, minimal scrap quantity and superior mechanical strength.
STRENGTHS
DRANITE AF 890 is a liquid alkali-free setting accelerator for preparing concrete and sprayed grout. Concretes prepared with DRANITE AF 890 show the following specific features:
- Good mechanical resistance.
- Good resistance to the chemical aggressiveness of the environment.
- Low concrete permeability.
- Low scrap quantity.
- Good thixotropy: it increases shotcrete adhesion, allows to realize medium-high thickness and reduce the number of coating layers.
- Rapid development of the cement hydration so as to facilitate application even at low temperatures.
- It protects exposed reinforcements and prevents corrosion.
IT IS IDEAL FOR
- Preliminary phase coatings for tunnels made of shotcrete.
- Restoring existing tunnels.
- Restoring and reinforcing bulkheads, dam faces, canal walls, tanks, etc.
- Walls, slabs and reinforced structural vaults.
- Restorations of degraded structures.
QUANTITY USED
- DRANITE AF 890 should be used in a dosage of 7 ÷ 9 % by weight of cement.
PACKAGING
- 250 kg drum
- 1300 kg IBC
- Bulk
