SikaGrout® GP
GENERAL PURPOSE PUMPABLE SHRINKAGE-COMPENSATED CEMENTITIOUS GROUT
SikaGrout® GP is a pumpable, shrinkage-compensated, flowable cementitious grout with extended working time to suit local ambient temperatures.
- Easy to mix and apply
- Flowable consistency (according to mix)
- Rapid strength development
- Non-corrosive
- Non-toxic
- Iron and chloride free
- Shrinkage-compensated
- Good pumping properties
Usage
SikaGrout® GP is a general purpose grout suitable for the following applications:- Grouting works for machine foundations, anchor bolts, bridge bearings, etc.
- Filling of cavities, gaps, recesses, etc.
- Concrete repairs (pre-packed grouting)
Advantages
- Easy to mix and apply
- Flowable consistency (according to mix)
- Rapid strength development
- Non-corrosive
- Non-toxic
- Iron and chloride free
- Shrinkage-compensated
- Good pumping properties
Packaging
25 kg bag
Colour
Grey premixed powder
Product Details
Shelf Life
6 months from the date of productionStorage Conditions
Store properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +10 °C and +35 °C. Protect from direct sunlight.
Maximum Grain Size
2 mm
Density
~2.2 kg/l (depending on consistency and temperature)
Compressive Strength
Flowable consistency
| 24 hours | > 20 N/mm² |
| 7 days | > 45 N/mm² |
| 28 days | > 55 N/mm² |
Expansion
Flowable consistency
| ≥ 0.5% at 24 hours | (ASTM C 940) |
Reaction to Fire
| Fire rating, Classified A1 | (EN 13501-1) |
Application
Mixing Ratio
| Consistency | Water (L) per 25 kg of grout |
| Flowable | 4.3–4.5 |
| Pourable | 3.6–4.0 |
These mix ratios are a guide and preliminary trials at local temperatures / humidity conditions are recommended.
Layer Thickness
10 mm min. / 50 mm max. per pour (neat grout)
Flowability
Flowable consistency
| ≥ 270 mm (at 3 mins) | (EN 1015-3) |
Ambient Air Temperature
+10 °C min. / +40 °C max.
Substrate Temperature
+10 °C min. / +40 °C max.
Yield
Flowable consistency
| SikaGrout® GP | Water | Volume Mortar |
| 1.82 kg | 0.33 L | 1 L |
| 25 kg | 4.5 L | 13.7 L |
| 73 x 25 kg bag | 330 L | 1 m³ |
Pourable consistency
| SikaGrout® GP | Water | Volume Mortar |
| 1.94 kg | 0.29 L | 1 L |
| 25 kg | 3.75 L | 12.9 L |
| 78 x 25 kg bag | 290 L | 1 m³ |
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® GP into it while continuously mixing. Add the remaining water until the desired consistency is obtained.
Mix for 2–3 minutes with a low speed drill (500 rpm max.).
APPLICATION
After mixing, stir lightly with a spatula for a few seconds to release any entrapped air. The grout is then poured immediately into the prepared formwork.
When carrying out baseplate grouting, ensure sufficient pressure head is maintained for uninterrupted mortar flow. For formwork repair, the prepared formwork must be firmly in place and kept watertight.
When placing grout over a large area, it is important to maintain a continuous flow throughout. Work sequence must be properly organised to ensure an uninterrupted flow. In large areas, SikaGrout® GP may be pumped using heavy duty diaphragm pumps. Screw feed and piston pumps may also be used.
Specific Areas of Application
| Grouting under baseplate | pourable consistency |
| Formwork grouting - pouring method | flowable / pourable consistency |
| Formwork grouting - prepacked method | flowable consistency |
| Grouting anchor bolts | stiff consistency |
Grouting large volumes
For sections thicker than 50 mm, it is necessary to fill SikaGrout® GP with graded 10 mm silt free aggregates to minimise temperature rise generated during the curing stage. The quantity of aggregates should not exceed 1 part aggregates to 1 part SikaGrout® GP by weight. For such mixes, a conventional concrete mixer and pump may be used. To further ensure that air entrapped during mixing is allowed to fully escape, it may be necessary to make breather holes. Use steel rods or chains to assist the flow of grout where necessary. Preliminary trials are recommended.
CURING TREATMENT
When formwork type repair is used, leave the formwork in place for at least 3 days.
Upon removal of the formwork, cure the exposed surfaces immediately with Antisol® curing compound or use other approved curing methods.
CLEANING OF TOOLS
Clean all tools and application equipment with water immediately after use. Hardened or cured material can only be mechanically removed.