KingAdd 66WP®
Integral waterproofing admixture.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
Overview
KingAdd 66WP is liquid concrete waterproofing admixture formulated from selected polymers specially designed to reduce concrete water permeability by reducing capillary voids within the concrete, which will last for the life of the concrete.
Where to use
- To produce concrete with lower permeability.
- For water retaining structures and concrete substructures.
Why use it
- Minimizing segregation problems by improving cohesion.
- Improved workability reduces placing and compaction problems.
- More durable concrete due to lower permeability.
- Improves compressive strength by reducing water properties in concrete mix at the same workability.
COMPATIBILITY
KingAdd 66WP can be used with all types of Portland cement and cement replacement materials. KingAdd 66WP is compatible with other KINGKRETE admixtures used in the same concrete mix. If more than one type of admixture is to be used in concrete mix, they must be dispensed to the concrete separately.
Technical properties
Values @ 25°C
| Colour | Pink liquid |
|---|---|
| Freezing point | ≈ -1°C |
| Specific gravity | 1.07 - 1.08 |
| Chloride contentBS 5075 | Nil |
| Air entrainment | Typically less than 2% additional air is entrained above control mix at normal dosages |
| PERFORMANCE AGAINST CONTROL | |||
|---|---|---|---|
| Control Mix | Mix A | Mix B | |
| W/Cement ratio | 0.45 | 0.42 | 0.405 |
| KingAdd 66WP dosage | Zero | 6 ltr/m³ | |
| Absorption/ permeability reduction: BS1881, Part 122 | - | 60% | 85% |
EFFECTS OF OVER DOSAGE
Over dosing of KingAdd 66WP will cause the following:
- Significant increase in retardation.
- Increase in workability.
Ultimate concrete strength will not be adversely affected and will generally be increased provided that proper concrete curing is maintained.
POINTS TO BE CONSIDERED IN WATERPROOF CONCRETE
- Lower water to cement ratio gives lower permeability concrete.
- Good concrete placing and compaction are very important to produce waterproof concrete.
- Fresh concrete should be protected against rapid drying and cured properly.
- Cold joints must be avoided.
How to use
Method of use
KingAdd 66WP should be added to the concrete with the mixing water to achieve optimum performance.
An automatic dispenser should be used to dispense the correct quantity of KingAdd 66WP to the concrete mix.
DOSAGE
The guidance dosage of KingAdd 66WP is 2.0 litre/100 kg of cementitious materials in the mix, including GGBFS, PFA or microsilica.
Cleaning
KingAdd 66WP can be washed with fresh cold water.
Coverage, packaging and storage
Packaging
KingAdd 66WP is available in 25 liters pails, 210 liters drums and 1000 liters bulks supply.
Storage
Shelf life is 1 year when stored under cover, out of direct sunlight and protected from extremes of temperature.
Failure to comply with the recommended storage conditions may result in premature deterioration of the product or packaging. For specific storage advice consult KingKrete's Technical Services Department.
Health and safety
As with all chemical products, care should be taken during use and storage to avoid contact with eyes, mouth, skin and foodstuffs. Treat splashes to eyes and skin immediately. If accidentally ingested, seek medical attention. Reseal containers after use. Use in well ventilated areas and avoid inhalation.