Grout Aids - Sika® Grout Aid

Expanding, water-reducing, retarding high-lift grouting aid

Sika® Grout Aid is a balanced blend of expanding, retarding, and water-reducing agents for Portland cement grouts. It provides a slow, controlled expansion prior to the grout hardening.

• A water reduction of at least 10 % is typical with the use of Sika® Grout Aid.
• Expansion action largely compensates for loss of grout volume.
• Increased water retention extends length of time that grout remains plastic so it may be vibrated.
• Allows for leaner mix.
• Superior place-ability and expansion in-place reduces cracks and cold joints.
• Retardation of setting time allows a longer period of time for expansive action to take place.
• Higher shear and bond values.

Usage

Use for high-lift grouting of all concrete block and clay brick.

Advantages

• A water reduction of at least 10 % is typical with the use of Sika® Grout Aid.
• Expansion action largely compensates for loss of grout volume.
• Increased water retention extends length of time that grout remains plastic so it may be vibrated.
• Allows for leaner mix.
• Superior place-ability and expansion in-place reduces cracks and cold joints.
• Retardation of setting time allows a longer period of time for expansive action to take place.
• Higher shear and bond values.

Packaging

42 lb (19 kg) bag

Color

White powder

Product Details

Product Information

Shelf Life

12 months from date of production if stored properly in original, unopened and undamaged sealed packaging

Storage Conditions

Store dry at 65-80 °F (18-27 °C)

Protect from moisture. If damp, discard material

Application

Application Information

Mixing Ratio

~ 1 lb (454 g) of Sika® Grout Aid per 100 lbs (45.4 kg) of cementitious material.

• The following typical mix design serves only as a basis for trial mixes.
• Actual mix designs must be tested prior to use.
• Proportions are by weight, unless noted.

Application Steps

MIXING

• Sika® Grout Aid is added in powder form to the grout mix in the transit-mixer at the job site in order to assure its action will not be altered by length of haul, mixer speed, or temperature build-up.
• Add slowly - if added too rapidly, lumps or balls may form.
• Sika® Grout Aid may be premixed with water and added as a solution provided correct dosage is maintained.

The Grout Mix shall contain:

• no less than 6 sacks of Type I or Type II Portland cement (preferably low alkali)
• 60 to 65 % sand
• 35-40 % pea gravel
• 6 lbs. of Sika® Grout Aid per yard

A slump of 8 to 10" (20.3-25.4 cm) should be maintained.

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