How to Repair Exposed Aggregate Concrete
Concrete pavement exponsed stones repairing process
1.concrete exposed aggregate pics:
2.Why suggest you use BC concrete repair material?
Fast early strength, 2h can restore traffic
High adhesion,compression,flexural strength
Abrasive resistance is 8-10 times of normal concrete
Waterproof,anti-freeze and hydrochloric acid corrosion resistance
Beautiful,small color difference with original road surface
3.Technical data:
Test items | Unit | Technical requirement | Test result | Individual conclusion | |
Setting time | Initial setting | Min | ≥15 | 25 | Meet requirement |
Final setting | ≤60 | 35 | |||
Compressive strength | 2h | Mpa | ≥20 | 32 | Meet requirement |
1d | ≥30 | 63 | |||
28d | ≥50 | 95 | |||
Pulling strength | 28d | Mpa | ≥1.0 | 2.8 | Meet requirement |
Expansion rate | 28d | / | 0.0%-0.1% | 0.02% | Meet requirement |
4.How to use?
1) Detailed process:
Identifying→Cleaning→Washing→Wetting→Cleaning→Adding water→Mixing→Paving→Curing
2) Tools & Materials:
Tools:
High pressure blower gun
high pressure water gun(or water sprayer with water pump)
Vertical mixer
Darby
Steel trowel
Water storage barrel
Plastic film
BC type concrete repair material
Clean water
3) Repair steps:
Materials:
Step 1: Select area need to be repaired.
Step 2: Clean out crushed stone, dust by high pressure blower gun.
Step 3: Wash repair area by high pressure water gun.
Step 4: Fully wetting repair surface, until it no longer seep water.
Step 5: Clean water out from repair surface by high pressure blower gun.
Step 6: Add 17-18% water.
Step 7: Stir evenly by vertical mixer, stirring time within 5 mins.
Step 8: Pour mixed repair material to repair surface, flatten by darby promptly.
Step 9: After final setting,purling and covering by geotextile to maintain immediately.
5.Package and Storage:
1)Package: Paper plastic composite bag packaging, 25Kg/bag.
2)Storage: Store in a cool, dry place, rainproof and moistureproof.
3)Storage period: 9 months
