BASF — The Chemical Company

Emaco®Nanocrete R4 is ideal for the following repairs:

• columns, piers and cross beams of all bridges, marine and other civil structures
• tunnels, pipes, outfalls and all below ground construction in aggressive ground conditions
• cooling towers and chimneys and other industrial environments
• water treatment and sewerage facilities

Performance Criteria

• high compressive strength (class R4 in new EN 1504 part 3) > 60 MPa at 28 days
• high strength gain during early age curing > 18 MPa at 24 hours
• high modulus of elasticity to ensure load transfer in structural repair (EN 1504 part 3 class R4) > 25 GPa at 28 days
• controlled initial expansion in wet state and during early age curing to ensure positive contact in repair zone and guaranteed load transfer and bonding
• excellent carbonation resistance
• high sulphate resistance
• low permeability and excellent freeze thaw resistance > 2 MPa tensile bond strength after 50 cycles according to EN 1504
• formulated with new shrinkage compensation systems : < 500 microstrain @ 28 days
• fibre reinforced to control cracking:
  • no cracking on V-channel test @ 180 days
  • no cracking in O-ring (Coutinho) test @ 180 days