BC type concrete road repair material is high technology product, which is of thin layer repairing concrete road surface dusting, peeling, exposed stone etc diseases. And achieved 2h open to traffic.surface disease(dusting,peeling,honeycomb,surface fracture,polygonal ground)
One. Application Range
Professional repair concrete surface diseases of various grades roads, airports, squares, parking lots, gas stations, factory floors and room floors etc. Such as: peeling, dusting, surface angularity, freeze thawing, slat corrosion, honeycombs, pitting, cracking etc. It can achieve 2mm ultra-thin repair on heavy load and high flow concrete road. It don't fall off and break under the force of stretching, rolling, moving and shaking, also stable performance and long service life.
Two. Core Advantages
1. Fast early strength, 2h can restore traffic.
2. Thin layer repair 2-3mm, don't break and fall off.
3. High adhesion,compression,flexural strength.
4. Abrasive resistance is 8-10 times of normal concrete.
5. Waterproof, anti-freeze and hydrochloric acid corrosion resistance.
6.Beautiful, Small color difference with original road surface.
Three.Performance Parameter
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 |
Four. Repair process
Identifying→Cleaning→Washing→Wetting→Cleaning→Adding water→Mixing→Paving→Curing→Joint-cutting
Identifying: Select area need to be repaired.
Cleaning:Clean out crushed stone, dust etc cleanly within area need to be repaired by high pressure blower gun.
Washing:rush mud out from operation surface when wash. And prevent backflow.
Wetting: After wash cleanly by water,it should keep water in operation surface for a period time.
Cleaning: Clean water out from operation surface by high pressure blower gun.
Adding water: Mix material and water then stir, the effect is best when water added 17%-18%.
Mixing: It must fully stir evenly by vertical mixer
Paving:Pour mixed repair material to operation surface need repair, flattening by darby immediately.
Five. Notes
1.Construction time should be controled in 15 minites after mixing the material to prevent the material harding, because it is rapid setting.
2.The harding material can not be used again.
