KingAdd 52WP®
High range concrete superplasticiser and permeability reducing admixture.
SpecWorld has the Spec Pack, CSI specification and drawings for registered specifiers.
Overview
KingAdd 52WP is a high performance liquid concrete admixture formulated from selected polymers specially designed to enable the water content of the concrete to perform more effectively. This effect can be used to reduce permeability, improve workability and to increase ultimate strengths with very high levels of water reduction in the concrete mix.
Where to use
- To produce high quality concrete of improved durability by reducing permeability.
- To increase workability retention of fresh concrete.
- To provide increased ultimate strength gain by reducing water demand in concrete mixes.
Why use it
- More durable concrete as a result of reduction in permeability and lower water to cement ratio.
- Higher strength with same cement content.
- Minimizing segregation problems by improving cohesion.
- Improved workability reduces placing and compaction problems.
- Cement saving without affecting strength.
- Chloride free.
COMPATIBILITY
KingAdd 52WP can be used with all types of Portland cement and cement replacement materials. KingAdd 52WP 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 | Brown liquid |
|---|---|
| Freezing point | ≈ -2°C |
| Specific gravity | 1.19 ± 0.01 |
| Chloride contentBS 5075 | Nil |
| Air entrainment | Typically less than 2% additional air is entrained above control mix at normal dosages |
DOSAGE
The guidance dosage of KingAdd 52WP is 1.00 - 2.40 liters/ 100 kg of cementitious materials in the mix, including GGBFS, PFA or microsilica.
Representative trials should be conducted to determine the optimum dosage of KingAdd 52WP to meet the performance requirements by using the materials and conditions in actual use.
EFFECTS OF OVER DOSAGE
Over dosing of KingAdd 52WP 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.
SETTING TIME
Although the setting time is dependent on the dosage of KingAdd 52WP, the following factors should be considered:
- Retardation is increased with lower levels of tri- calcium in the cement.
- Lower temperatures will delay the setting time.
- SRC cement gives higher retardation level than ordinary cement.
- Using more than one type of admixture in the same concrete mix could affect the setting time.
- Retardation level is increased when cement replacement materials are used in the concrete mix.
Standards and approvals
KingAdd 52WP complies with ASTM C494, Type B, D and G, depending on dosage used.
How to use
Method of use
KingAdd 52WP should be added to the concrete with the mixing water to achieve optimum performance. Automatic dispenser should be used to dispense the correct quantity of KingAdd 52WP to the concrete mix.
Cleaning
KingAdd 52WP can be washed with fresh cold water.
Coverage, packaging and storage
Packaging
KingAdd 52WP 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.