Struplast Air

Concrete and Mortar Air entraining agent

Struplast Air is a chloride-free admixture based on synthetic surfactants and is supplied as a dark brown solution. Struplast Air acts on the interface of the cement/aggregate particles and mixing water to produce microscopic air bubbles evenly distributed throughout the concrete.

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Uses

To produce air entrained concrete for increased durability, resistant to damage by frost and de-icing salts.
To improve the cohesion and workability of concrete mixes where poorly graded aggregates must be used.
Typical applications include concrete roadways, bridge decks, airport runways and taxiways, and other extensive areas of concrete exposed to potential frost damage.

Advantages

Provides concrete with resistance to freezing and thawing.
Improves cohesion, reduces segregation and bleeding.
Gives dense, uniform, close textured surface to concrete.
Excellent air bubble stability.
Consistent performance, even with changes in aggregate quality and ambient temperature.
Effective in low workability concrete.
Suitable for use in Middle East conditions.

Standards compliance

Struplast Air complies with BS 5075: Part 2 and with ASTM C260 as an air entraining agent.

Properties

Appearance

Brown Liquid

Specific gravity

1.02±0.03 gr/cm3 at 20°C

Chloride

Nil to BS5075

Air entrainment

Typically between 2% and 6% additional air is entrained at normal dosages.

Instructions for use

Compatibility: Struplast Air is compatible with other STRUMIX admixtures used in the same concrete mix. All admixtures should be added to the mix separately.
Dispensing: The correct quantity of Struplast Air should be measured by means of a recommended dispenser and added to the concrete with the mixing water.
Curing: Good curing practice should be maintained, particularly in situations where an overdose has occurred.

Packaging & Storage

Struplast Air is available in 20 kg containers and 200 kg drums.
Struplast Air has a minimum shelf life of 12 months provided the temperature is kept within the range of 5°C to 35°C.
Freezing point: Approximately -2°C.

Health and safety

Struplast Air does not fall into the hazard classifications of current regulations. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable protective gloves and goggles should be worn.

Fire

Struplast Air is non-flammable.