SikaGrout®-215
SikaGrout®-215 is a pumpable dual-shrinkage compensated, self-levelling, prebagged cementitious grout with extended working time to suit local ambient temperatures.
- Easy to mix and apply
- Good flow characteristics
- Rapid strength development
- High ultimate strengths
- Impact resistant
- Non-corrosive
- Non-toxic
- Chloride free
- Dense and non-shrink (2-step expansion - Gaseous expansion in plastic stage & Crystalline expansion in hardened stage)
- Extended working time
- Good pumping properties
- Tested for compatibility with drinking water, PSB report 57S030976-SLE-2
Usage
SikaGrout®-215 is suitable for repairs to the following concrete structures:- Machine foundations
- Columns in precast construction
- Concrete anchors
- Bridge bearings
- Cavities
- Gaps
- Recesses
- Rail beds
- Honeycombs (pre-packed grouting)
Advantages
- Easy to mix and apply
- Good flow characteristics
- Rapid strength development
- High ultimate strengths
- Impact resistant
- Non-corrosive
- Non-toxic
- Chloride free
- Dense and non-shrink (2-step expansion - Gaseous expansion in plastic stage & Crystalline expansion in hardened stage)
- Extended working time
- Good pumping properties
- Tested for compatibility with drinking water, PSB report 57S030976-SLE-2
Packaging
25 kg bag
Colour
Grey powder
Product Details
Shelf Life
6 months from the date of production
Storage Conditions
Store properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +35 °C. Protect from direct sunlight, rain and water.
Density
~2.2 kg/l (depending on consistency and temperature)
Maximum Grain Size
1.2 mm
Compressive Strength
| Flowable | Pourable | |
| 1 day | >25 N/mm² | >30 N/mm² |
| 7 days | >45 N/mm² | >50 N/mm² |
| 28 days | >60 N/mm² | >65 N/mm² |
Tensile Strength in Flexure
| Flowable | Pourable | |
| 7 days | ~7.0 N/mm² | ~7.5 N/mm² |
| 28 days | ~7.5 N/mm² | ~8.0 N/mm² |
Expansion
| 0.5–1.5 % | (ASTM C 940) at 24 hours |
Application
Mixing Ratio
| Consistency | Water (L) per 25 kg of grout |
| Flowable | 4.0–4.4 |
| Pourable | 3.6–4.0 |
| Stiff | 3.0–3.4 (for special applications such as anchoring of starter bars) |
Layer Thickness
5 mm min. / 50 mm max. per pour
Flowability
| Flowable | Pourable | |
| Flow cone | ~280 mm | ~250 mm |
Ambient Air Temperature
+10 °C min. / +40 °C max.
Substrate Temperature
+10 °C min. / +40 °C max.
Yield
Flowable consistency
| 1.84 kg | 25 kg | 74 x 25 kg bags | |
| Water | 0.31 L | 4.2 L | 309 L |
| Volume mortar | 1 L | 13.6 L | 1 m³ |
Pourable consistency
| 1.90 kg | 25 kg | 76 x 25 kg bags | |
| Water | 0.3 L | 4 L | 303 L |
| Volume mortar | 1 L | 13.2 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®-215 into it while continuously mixing. Add the remaining water and continue mixing until the desired consistency is obtained. Mix for 2 to 3 minutes with a slow speed drill and paddle (~500 rpm).
For large quantities mixing, the use of a forced-action mixer of rotating pan, paddle or trough type is preferred. Free fall mixers should not be used.
APPLICATION
Use SikaGrout®-215 for grouting only.
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®-215 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 (example deep honeycombs, column reinforcements, etc.
pouring method - flowable / pourable consistency
prepacked method - flowable consistency. - Grouting anchor bolts - stiff consistency
- Grouting large volumes - for sections thicker than 50 mm, it is necessary to fill SikaGrout®-215 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®-215 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 the grout where necessary.
CURING TREATMENT
If 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®-E curing compound or use other approved curing methods.
CLEANING OF TOOLS
Clean all tools and application equipment with water immediately after use. Hardened and/or cured material can only be mechanically removed.