Bridge expansion joint concrete repair mortar
Bridge expansion joint concrete repair mortar is developed by Henan Huineng Road and Bridge Technology Co.,Ltd. It is rapid repair material for various diseases on bridge expansion joint.
Fast repair bridge expansion joint concrete cracks, potholes, broken, exposed reinforcing bar etc.
1:Bridge expansion joint concrete repair mortar 8 core advantage:
1)1h open to traffic:Fast with strength,2h compressive strength ≥33Mpa,
2h flexural strength ≥5Mpa,Fully meet bridge rapid repairing,reduce traffic congestion.
2)Bonding tightly:no break and fall off from normal concrete under heavy load.
3)High strength:Compressive & flexural strength in late period, both reach 2-3 times of normal concrete.Compressive strength:1d≥60Mpa, 28d≥80Mpa,Flexural strength ≥10Mpa.
4)Good toughness:Impact resistance strength is 8-10 times of normal concrete impact resistance strength
5)No drying cracks in repaired area and original concrete
6)Good match:Heat expansion and cold contraction coefficient is nearly same with original concrete.
7)Small color difference: Color of repaired area is close to original concrete.
8)Fast repair: Just need chisel damage area accurately,produce less waste, high efficiency,
road closed time is short.
2:Bridge expansion joint concrete repair mortar technical data:
Test items | Unit | Technical requirement | Test result | Individual conclusion | |
Setting time | Initial setting | Min | ≥20 | 25 | Meet requirement |
Final setting | ≤60 | 35 | |||
Compressive strength | 2h | Mpa | ≥20 | 33.0 | Meet requirement |
1d | ≥40 | 66.1 | |||
28d | ≥50 | 90.5 | |||
Flexural strength | 2h | ≥4 | 5.5 | Meet requirement | |
1d | ≥6 | 10.5 | |||
28d | ≥8 | 13.5 | |||
Pulling strength | 28d | Mpa | ≥2.0 | 2.8 | Meet requirement |
Expansion rate | 28d | / | 0.00%-0.1% | 0.01% | Meet requirement |
3:Bridge expansion joint concrete repair mortar use method:
