Поделиться:
Repair mortar for damaged parts of concrete in bridge
Feature:
A:Wipe the surface layer does not bear the load .
B:Wipe the surface layer and the base layer have sufficient bond strength to make it in the construction or long-term environmental effects and no weight loss, no cracking .
C:Wipe the surface layer is thin and layered painting , the surface layer should be smooth , clean, beautiful and meticulous Lee .
D:Dry environment used for a large area exposed to the air .
Test Program | Performance indicators | |
Tensile bond strength Mpa ( with cement mortar ) | Normal condition | ≥0.70 |
temperature resistance | ≥0.05 | |
Water resistant | ≥0.05 | |
Freeze-thaw resistance | ≥0.05 | |
Tensile bond strength Mpa (with 181kg/m2 polystyrene board ) | Normal condition | ≥ 0.10 and the destruction of polystyrene board |
Water resistant | ≥ 0.10 and the destruction of polystyrene board | |
Freeze-thaw resistance | ≥ 0.10 and the destruction of polystyrene board | |
Operating time,h | 1.5-4.0 | |
Anti- crack | Thickness of 5mm or less free of cracks | |
Flexibility compressive / flexural strength | ≤3.0 |