SikaGrout®-212 HP
SikaGrout-212 HP is a cementitious, non-shrink, high performance grout that expands in two stages in both the plastic and hardened states (class A and C) to counteract the shrinkage normally associated with cement grouts.
- Shrinkage compensating properties, classed as a non-shrink grout as per CRD-C 621-81.
- High early strengths.
- High 28 day strengths.
- Flowable consistency.
- Adjustable consistency.
- Formulated to not segregate or bleed.
- Excellent impact and thermal resistance.
- Non corrosive to steel or iron.
- Lab tested in accordance with AS 1478.2
Usage
SikaGrout 212HP is used for flowable grouting applications. Typical applications may include:- Machine baseplates
- Anchor bolts.
- Bridge bearing pads and shear key grouting.
- Pre-cast concrete sections.
- Cavities, gaps and recesses.
- High performance grouting.
Advantages
Characteristics and advantages include:- Shrinkage compensating properties, classed as a non-shrink grout as per CRD-C 621-81.
- High early strengths.
- High 28 day strengths.
- Flowable consistency.
- Adjustable consistency.
- Formulated to not segregate or bleed.
- Excellent impact and thermal resistance.
- Non corrosive to steel or iron.
- Lab tested in accordance with AS 1478.2
Packaging
20 kg bag
Colour
Grey concrete in appearance
Product Details
APPROVALS / CERTIFICATES
Complies with the following Standards:
- classed as a non-shrink grout as per CRD-C 621-81.
- Lab tested in accordance with AS 1478.2
- Approved product by TMR Qld "Product index for Bridges" Repair Materials (Concrete)- Grouts Section 5.33 Feb 2019
Shelf life
9 months.
Storage conditions
Store SikaGrout-212HP in dry conditions in unopened original packaging.
Maximum grain size
Maximum aggregate size is 1mm for pumping.
Density
~ 2,200 kg/m3 approx. (dependent on water addition rate)
Compressive strength
Age | 23oC | 30oC |
1 Day | ~25 MPa | ~25 MPa |
3 Days | ~35 MPa | ~40 MPa |
7 Days | ~60 MPa | ~70 MPa |
28 Days | ~75 MPa | ~85 MPa |
Material and curing conditions at 23 oC / 50% r.h.
Above results based on 50mm x 50mm cube specimens (Flowable consistency)
Tensile strength in flexure
28 days | 12 MPa |
Splitting tensile strength
28 days | 6 MPa |
Expansion
Height Change % | |
1 day | 0.00% |
3 days | 0.02% |
14 days | 0.02% |
28 days | 0.03% |
Electrical resistivity
7 days | ~ 8,000 Ω.cm |
28 days | ~ 11,000 Ω.cm |
56 days | ~ 13,000 Ω.cm |
90 days | ~ 14,000 Ω.cm |
Application
Mixing ratio
Consistency | Water per 20kg bag (litre) |
Plastic | 2.8 |
Flowable | 3.7 |
Layer thickness
10mm - 100mm
Flowability
~40 Seconds | (AS 1478.2:2005) |
~50 Seconds @30mins |
Tested at flowable consistency (Flow Cone)
Material temperature
Application Temperature between 5oC and 35oC
Pot Life
30 minutes approx.
Setting time
Temp | Initial Set | Final Set | |
Flowable | 23oC | ~ 5:00 hrs | ~ 7:00 hrs |
Yield
Plastic | Flowable | |
Approx. yield per 20kg bag | 10.2 litres | 10.8 litres |
Approx. bags per 1m3 | 98 | 93 |
EQUIPMENT
SikaGrout®-212 HP must be mechanically mixed using a mechanical grout mixer or a suitable drum mixer. The grout mixer will reduce the chances of the mix becoming lumpy or aerated. Smaller quantities should be mixed in clean drum using an electric drill and
spiral drill and spiral mixer at a speed of approximately 500 rpm. DO NOT MIX BY HAND.
MIXING
Place about 70–80 % of the premeasured clean water (depending on consistency required – refer to “Mix Ratio”) into a clean container and gradually add the whole bag of SikaGrout®-212 HP into it while continuously mixing. Add the remaining water until the desired consistency is obtained. Mix for 3–5 minutes with a low speed drill (500 rpm max.). Allow to stand so any entrapped air can escape. Do not add more water to increase flow of the grout if a mix has stiffened due to time delays. If the grout is unworkable discard.
APPLICATION
SikaGrout-212 HP can be placed by gravity flow or by pump. It is essential that proper placing on the job site is practised to ensure placement 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 (5 to 6hours).
Pumping
When pumping SikaGrout-212 HP, 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.