concrete surface repair method
There are many disease in concrete, such as: honeycomb, pitting, dusting, freezing and thawing, salt corrosion, exposed aggregate, hairline crack etc.
Repair above disease on concrete surface, Henan Huineng BC type concrete repair material is your better assistant.
How to repair a concrete surface?(for example: exposed aggregate in concrete)
Repair method as follows:
1.Concrete surface disease: This concrete road is badly exposed aggregate, and in desperate need of repair.
2.Remove peeling part on concrete surface.
3.Use milling machine to mill concrete road surface.
4.Clean out crushed stone, dust etc by high pressure blower gun. And wash repair area by high pressure water gun.
5.Mix BC concrete repair material with water, water added 15%-17%.Stir time in 3-5 mins.
6.Press flat by channel steel.
7.Smooth out the surface by trowel.
8.Make anti-skid strips.
9.Repair finished and open to traffic
Repair effect:
Testing data of BC type concrete repair material:
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 | |||
Pull strength | 28d | Mpa | ≥1.0 | 2.8 | Meet requirement |
Expansion rate | 28d | / | 0.0%-0.1% | 0.02% | Meet requirement |
Core advantage of BC type concrete repair material:
1)Practical performance: Fast and convenient repair, 2h can restore traffic
2)Adhesion performance: Adhesion force≥2.8, don't break and fall off under heavy load
3)Durable performance:Compression resistance,wear-resisting,waterproof anti-freeze,hydrochloric acid corrosion resistance
4)Higher strength,beautiful,color of repaired surface is closed to original concrete road,
suitable for all kinds of weather.
