Sika Grout HES is a ready-mixed, high-quality, Class C shrinkage-compensated grout that sets rapidly with high early strength gain. ProTrade Warehouse, as a trusted Sika distributor, offers Sika Grout HES at competitive trade prices for applications requiring fast strength development.
Uses
SikaGrout HES is used in a wide range of applications where rapid strength and return to service is required, such as:
- Machine base plates
- Anchoring
- Starter bars
- Bridge bearing pads
- Pre-cast panel grouting
- Cavities, gaps and recesses
Features
- High early strengths (even at low temperatures).
- High 28-day strengths.
- Good flow characteristic.
- Rapid set times.
- Adjustable consistency.
- Does not segregate or bleed.
- High impact and thermal resistance.
- Non-corrosive to steel or iron.
Product Information
Packaging: 20kg bag
Shelf life: 9 months
Storage conditions: Stored in a dry, unopened original containers protected from direct sunlight and frost.
Appearance and colour: Grey Powder
Maximum grain size: Maximum particle size for pumping ~2.0mm
Density: ~2,200 kg/m³ approx. (dependent on water addition rate)
Application Information
Yield: Trowellable ~ 10.3 litres per 20kg bag, Flowable ~ 10.7 litres per 20kg bag
Layer thickness: min. 10mm / 150mm @ 23°C
Flowability: ~ 70 sec (Flow Cone - Flowable consistency)
Mixing ratio: Flowable consistency add 3.2 to 3.5 litres of water per 20 kg bag. Trowellable consistency add 2.5 to 2.8 litres of water per 20kg bag.
Pot Life: ~ 20 minutes at 23 °C
Setting time (AS 2350.4:2006 at 23 °C): Initial Set ~ 25 mins, Final Set ~ 30 mins
Important Considerations
- Do not mix SikaGrout HES with any Portland cement-based materials.
- For detailed information on grouting application and guidelines, refer to Sika Grouting Method Statement.
- Store SikaGrout HES in dry conditions in unopened original packaging.
- Never apply to a dry substrate.
- Trials should always be conducted SikaGrout HES to determine performance under local conditions.
Application Instructions
Substrate Quality / Pre-treatment
Concrete: Correct and thorough surface preparation is essential to achieve the high-performance qualities of SikaGrout HES. All surfaces must be clean, sound and free from dust, ice, oils, grease or other surface contaminants such as curing membranes and form release agent etc. Bolt holes and fixing pockets should be free of dirt and debris by air blasting. For maximum bond, surfaces should be abraded or roughened, preferably by mechanical means such as needle gun, grit blasting, grinding etc. All prepared surfaces must be saturated with water several hours prior to grouting, ensuring it is free of any surface water or puddles.
Formwork: Where formwork is to be used, all formwork must be of adequate strength, treated with release agent and sealed to prevent leakage of pre-wetting water and grout. Ensure formwork includes outlets for removal of the pre-soaking water if vacuum extraction equipment to remove water will not be used. For manual grout application, a header box or hopper must be constructed on one side of the formwork so that a grout head can be maintained during the grouting operation.
Mixing
Equipment: Sika Grout HES must be mixed using a mechanical grout mixer or a suitable drum mixer. The grout mixer will reduce the mix becoming lumpy or aerated. Smaller quantities should be mixed in a clean drum using an electric drill. i.e. Festo or similar spiral mixer at a speed of approximately 500RPM. DO NOT MIX BY HAND or MIX PART BAGS.
Method: Add approx. 70% of water to 20kg pail, slowly add powder while mixing to wet out product fully, add remaining water at a steady rate while continuing to mix. Continue to mix for an additional 3-5 mins. Do not add more water to increase flow if material has stiffened due to time delays on resting, remixing can reactivate. If grout is unworkable discard.
The aggregate shape, and the quantity added, will effect the workability of the mix. Smooth rounded aggregate is found to produce the most workable mix. The recommended maximum aggregate addition rate is 20kg per 20kg bag of Sika Grout HES. The other option will be to add Sika Grout Aggregate to the mix to increase the thickness of the grout placed.
Application
Sika Grout HES can be placed by gravity flow or by pump. It is essential that proper placing is completed without problems. Sufficient labour, grout and equipment must be present to ensure continuous placement.
Gravity Flow: Mixed grout should be poured one side of the void to avoid air entrapment. Grout is best poured over short distances to ensure this. Use a suitable header box, maintaining the grout head at all times to ensure continuous flow. To facilitate grout compaction and top plate contact, use rodding, tamping or flexible strapping in short strokes while maintaining an adequate head of grout. Do not vibrate as this will cause segregation. Any adjacent machinery or equipment causing vibration should be shut down until initial set.
Pumping: When pumping Sika Grout HES, ensure the pump is suitable for the grout consistency and for the distance and height it is to be pumped. A positive displacement pump is recommended. Place grout by pumping into the farthest corner, filling the space gradually. Ensure that air is not entrapped under the base plate.
Placement Thickness: Minimum thickness is 10 mm. Maximum thickness in one pass is 150 mm. Any grout pour that exceeds this should be done in stages, or have stone aggregate added to it, to reduce the exothermic heat.
Aggregate Addition: Coarse aggregate can be added to mixed SikaGrout HES to achieve a stronger grout, to increase the thickness of grout placed in one pass, or to increase yield. It is recommended that aggregate size be 10 mm, however as a guide the maximum aggregate size should not be more than 1/5 of the thickness of the section to be cast.
Curing Treatment
Suitable curing methods such as plastic sheet, wet hessian, curing compounds (eg, Sika Film for initial placement then Sika Antisol curing compounds after initial set) etc. must be used to protect the freshly applied grout from the drying effects of sun and wind. Curing must commence immediately after placement, and continue for at least 7 days. Curing is vital to the ultimate performance of grout as it allows optimum strength development and ensures tight contact with the baseplate.
Cleaning of Equipment
Remove uncured Sika Grout-HES from tools and equipment with water. Hardened material can only be removed mechanically.
Order Sika Grout HES High Early Strength Structural Grout from ProTrade Warehouse for your rapid setting and high-strength structural grouting needs. Benefit from our trade prices and fast Australia-wide delivery, with convenient pickup options available.
