Air Entrainers - Sika® Air-260

Air Entraining Admixture

Sika® Air-260 is a unique, synthetically manufactured surfactant for the air entrainment of concrete. Sika® Air-260’s patented formula provides superior control of the air content and finishability in air-entrained concrete. Sika® Air-260 increases concrete’s durability, making it more resistant to the damaging effects of freezing and thawing, while improving workability and reducing bleeding. Sika® Air-260 meets the requirements of ASTM C 260.

• Increases resistance to freeze-thaw cycles and scaling.
• Improves workability.
• Reduces bleeding.
• Improves appearance of architectural concrete.
• Reduces size and number of capillary channels, increasing impermeability.
• Substantially increases durability.
• Provides superior air-void system.

Usage

Sika® Air-260 is designed for use in exterior and interior concrete such as highway paving, curbs and gutters, sidewalks, driveways, slabs, walls, or other areas needing protection from freeze-thaw damage or the harmful effect of de-icing salts. Sika® Air-260 is effective in increasing the workability of the concrete, especially in lean or harsh mixes.

Advantages

• Increases resistance to freeze-thaw cycles and scaling.
• Improves workability.
• Reduces bleeding.
• Improves appearance of architectural concrete.
• Reduces size and number of capillary channels, increasing impermeability.
• Substantially increases durability.
• Provides superior air-void system.

Packaging

Sika® Air-260 is available in 55 gallon drums (208 liters), 275 gallon totes (1040 liters) and bulk delivery.

Color

Brown Liquid

Product Details

Product Information

Shelf Life

Shelf life when stored in original packaging in dry warehouse conditions between 50 °F and 80 °F (10-27 °C) is 1 year from the date of manufacture.

Storage Conditions

Sika® Air-260 should be kept above 3 °C (38 °F). If product drops below 3 °C (38 °F), DO NOT USE and immediately contact our Technical Department. DO NOT USE PRESSURIZED AIR FOR AGITATION.

Specific Gravity

Approx. 1.01

Application

Application Information

Mixing

Measure the required quantity per batch manually or with automatic dispenser equipment. Add Sika® Air-260 to mixing water or sand. Do not mix with dry cement.

Combination with other admixtures: When used in combination with other admixtures, care must be taken to dispense each admixture separately into the mix. Combination with other admixtures may affect the amount of entrained air in the mix. If multiple admixtures are used, actual air content should be verified as per applicable ASTM standards to ensure desired level of air entrainment is achieved.

Consumption

Recommended Dosage

The recommended dosage range for Sika® Air-260 is 0.1 to 6.0 ounces per 100 lbs. (7 to 400 ml / 100 kg) of cementitious material. Various concrete materials, slump, ambient air temperature, additions of pozzolanic materials, mixing time, and type and brand of cement will affect dosage rates. It is recommended that trial mixes be conducted in order to determine the dosage to obtain the required percentage of entrained air. In addition, a regular program of air tests should be instituted in order to adjust the dosage to changing conditions.

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