fix concrete driveway crack - 1h open to traffic
fix process of concrete driveway crack:
step 1: cracks in concrete driveway
step 2: joint-cutting
step 3: joint-cutting finished
step 4: chiseling
step 5: cleaning
step 6: washing
step 7: cleaning again
step 8: repairing (use SC type concrete repair material)
step 9: repair finished
The advantage of SC type concrete repair material:
1)Rapid repair, 1 hour open to traffic
2)Good adhesion,Compressive & Flexural strength is 2 times of normal concrete.
3)Toughness & impact resistance strength is 5-8 times of normal concrete.
4)Beautiful,uniform color,Expansion shrinkage coefficient is basically same with grass-roots concrete.
5)Frost resistant & sulphate corrosion resistant, non- toxic, non-corrosive.
6)Simple & rapid construction,Can be used as first-aid repair materials in damp environment.
The test data of SC type concrete repair material:
Test items | Unit | Technical requirement | Test result | Individual conclusion | |
Setting time | Initial setting | Min | ≥20 | 25 | Meet requirement |
Final setting | ≤60 | 35 | |||
Compressive strength | 4h | Mpa | ≥20 | 33.0 | Meet requirement |
1d | ≥40 | 66.1 | |||
28d | ≥50 | 90.5 | |||
Pull strength | 28d | Mpa | ≥2.0 | 2.8 | Meet requirement |
Expansion rate | 28d | / | 0.00%-0.1% | 0.01% | Meet requirement |
The application range of SC type concrete repair material:
1)Rapid repair for:Highway,national road,provincial road,airport,municipal engineering and tunnel
2)Repair serious disease: concrete slab corner crack,serious crack,edge failure and pothole
3)Concrete floor, pavement depression
4)High-speed railway,water conservancy and wharf
The benefit analysis of SC type concrete repair material:
SC concrete repair material have super strong compressive strength, adhesion strength and durability.
Rapid,efficient repair to disease area.after completed repair, 1 hour can open to traffic.
Compared with cement road paving asphalt, this method have 4 big advantage:
1)Can save some money of repairing in earlier stage.
2)Repair service life is long
3)Road bearing capacity is high
4)Adhesion force is far more than asphalt, save time and labour in later period maintenance,
don't need repair again and again.
