KingAdd 25AF®
Cold weather concreting admixture.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
Overview
KingAdd 25AF is a multi-component concrete additive in liquid form for producing high quality concrete at very low temperatures. KingAdd 25AF is chloride free.
Where to use
KingAdd 25AF is recommended for use in conditions such as:
- Concrete casting at low temperatures.
- Expected overnight frost.
- Early concrete strength requirements.
- High strength concrete.
Why use it
KingAdd 25AF provides for the following:
- Increased frost resistance.
- Improved early and long term strengths.
- Chloride free - does not attack reinforcement.
COMPATIBILITY
KingAdd 25AF is compatible with other KINGKRETE admixtures used in the same concrete mix.
If more than one type of admixture will be used in concrete mix, they must be dispensed to the concrete separately.
Technical properties
Values @ 25°C
| Colour | Yellowish/ light brown |
|---|---|
| Freezing point | -32°C |
| Specific gravity | 1.36 ± 0.01 |
| Chloride content BS5075 | Nil |
| Air entrainment | Typically less than 2% additional air is entrained above control mix at normal dosages |
Standards and approvals
KingAdd 25AF complies with the following specifications:
- EN934-2.
- BS5075.
- ASTM C494, Type C.
How to use
Method of use
KingAdd 25AF can be added to the mixing water prior to its addition to the concrete mix, or dispensed separately after the addition on mixing water.
DOSAGE
Dosage of KingAdd 25AF will vary depending on cement content and outside temperature. Required dosage should be determined for each case.
Typical dosage is between 1 - 2% of cement content. Dosages outside the typical range given above may be used to meet particular requirements.
Cleaning
KingAdd 25AF spillage should be collected by suitable absorbent like sand or vermiculite and transfer by suitable container. KingAdd 25AF should not be allowed to enter sewers or open bodies of water.
Dispose of in accordance with local environmental regulations.
Coverage, packaging and storage
Packaging
KingAdd 25AF is available in 25 and 210 liters drums, and 1000 liters containers.
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.