how to repair holes in concrete
1.what caused concrete holes?
2.How to repair concrete holes?
Repair process:
Identifying→Marking out→Joint-cutting→Chiseling→Washing→Mixing material→
Repairing→Joint-cutting→ 3.How about repair effect? Curing→Open to traffic
3.How about repair effect?
4.Core advantage of SC type concrete repair material:
Fast setting,1 hour restore the traffic,reduce traffic jams.
Beautiful,uniform color,joint tightly after repair,no dry shrinkage cracks
High adhesion strength,compressive & flexural strength is 2 times of normal concrete.
Good toughness,Impact resistance strength is more than 5 times of normal concrete.
Waterproof anti-freeze,heat expansion & cold contraction is nearly same as grass-roots concrete.
5.Technical 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 |
6.Package of SC type concrete repair material:
Package: Paper plastic composite bag packaging, 25kg/bag.
Storage: Stored in dry and cool place,rain-proof, water-proof.
Storage period: 9 months
