concrete driveway spalling repair
1.This concrete driveway is badly spalled and in desperate need of repair.
2.How to repair spalling concrete driveway? BC type concrete repair material will help you.
1)Identifying:
Select area need to be repaired.
2)Cleaning:
Clean out crushed stone, dust etc cleanly within area need to be repaired by high pressure blower gun.
3)Washing:
Thoroughly wash area need to be repaired cleanly by high pressure water gun, It should rush mud out from
operation surface when wash. .
4)Wetting:
After wash cleanly by water,it should keep water in operation surface for a period time.
Fully wetting operation surface, until it is no longer seep water.
5)Cleaning:
Clean water out from operation surface by high pressure blower gun.(If have water,it will seriously affect material adhesive property,compressive strength and beauty)
6)Adding water:
Mix BC type concrete repair material and water then stir, the effect is best when water added 17%-18%.
7)Mixing:
It must fully stir evenly when stir by vertical mixer.
8)Paving:
Pour mixed repair material to operation surface need repair, flattening by darby immediately
3.Benefit analysis:
BC type cement road repair material can achieve ultra-thin repair. Super strong compressive strength,
adhesion strength and durability.Rapid,efficient repair to disease area.after completed repair, 2 h 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)Thin layer 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.
4.More information of BC type concrete repair material:
1)Professional repair cement concrete paving diseases:
honeycomb, pitting, peeling,dusting, freezing and thawing, salt corrosion, exposed aggregate,small crack etc.
2)Four big core advantage:
Practical performance: Fast and convenient repair, 2h can restore traffic
Adhesion performance: Adhesion force≥2.8, don't break and fall off under heavy load
Durable performance:Compression resistance,wear-resisting,waterproof anti-freeze,hydrochloric acid corrosion resistance
Higher strength,beautiful,color of repaired surface is closed to original concrete road,
suitable for all kinds of weather.
3)Application range:
Highways, national roads, provincial roads, tunnels, Municipal roads, urban & rural roads, industrial & mining
factory, parking lots, gas stations, schools, ball park, district roads etc concrete floor.
4)Testing 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 | |||
Pull strength | 28d | Mpa | ≥1.0 | 2.8 | Meet requirement |
Expansion rate | 28d | / | 0.0%-0.1% | 0.02% | Meet requirement |
