Concrete anti-corrosion admixture VF-16
VF-16 is used in concrete in hydraulic engineering, marine engineering and offshore engineering.
Category
Others
Detail
Applications
VF-16 is used in concrete in hydraulic engineering, marine engineering and offshore engineering.
VF-16 is suit for concrete containing mineral admixture.
VF-16 is suit for concrete with high requirements of durability.
Properties
(1) Excellent sulphate attack resistance.
(2) Excellent reinforcing steel bar corrosion resistance.
(3) Low permeability.
(5) Excellent water-repellent property.
Usage
Powder VF-16 can be added with cement with an adequate longer mixing time.
The dosage is typically 4%~7%, and the recommended dosage is 5.0%. The actual dosage should be based on the corrosive medium content.
The ratio of water and binder should be no more than 0.4.
The mix design of corrosive-resistance concrete should be based on the applying regulation of Fly-ash concrete.
The corrosive medium test and mix design of corrosive-resistance concrete are available according to different requirement.
The applying of VF-16 should be based on the classification in following table:
Position |
Zone |
|
Warm area |
Cold Area |
|
Overground |
VF-16 A |
VF-16 B |
Underground |
VF-16 A |
VF-16 A |
Water-level change area |
VF-16 B |
VF-16 B |
Concrete performance with 5% dosage by binder mass
Test item |
Classification |
||
VF-16A |
VF-16B |
||
Fineness(0.315mm)(%) |
≤10 |
≤10 |
|
Cement paste fluidity used with VF-9 pumping aid (mm) |
≥200 |
≥200 |
|
Sulphate corrosive resistance( SO42-,mg/L) |
≥15000 |
≥15000 |
|
Concrete performance |
Freezing resistance |
≥F150 |
≥F300 |
Permeability resistance(Water-repellent) |
≥P20 |
≥P20 |
|
Ratio of compressive strength(28d)% |
≥95 |
≥95 |
|
Permeability resistance (Coulomb) |
≤1000 |
≤1000 |
|
Reinforce steel bar corrosive |
- |
- |
Packaging, transport and storage
(1) VF-16 is available in 25kg film-lined bags. Other special package can also be available according to prior consultation.
(2) Special measures should be taken to ensure entire package. Keep waterproof during transportation.
(3) Dry and well ventilated warehouse is needed for storage. Quality guarantee of VF-16 is one year under normal conditions. If storage has surpassed the time, test must be done to confirm the validity.
Keyword
concrete