SikaRepair®-222
One-component, early strength gaining, cementitious patching material
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SikaRepair®-222 is a one-component, early strength gaining, cementitious, patching material for horizontal repair of concrete.
- Easy-to-use; just add water
- Suitable for exterior and interior applications
- Not flammable
- Easily applied to clean, sound substrate
- High early strengths
Usage
- On grade, above and below grade on concrete and mortar
- As a repair material for spalled horizontal concrete surfaces, walkways, ramps, steps, etc.
Advantages
- Easy-to-use; just add water
- Suitable for exterior and interior applications
- Not flammable
- Easily applied to clean, sound substrate
- High early strengths
Packaging
SikaRepair®-222: 50 lb. (22.7 kg) bag
SikaLatex® (R): 1 gal. (3.8 L) plastic jug and 5 gal. (19 L) pail
Color
Gray powder
Product Details
Shelf Life
12 months from date of production if stored properly in original, unopened and undamaged sealed packaging
Storage Conditions
Store dry at 40–95 °F (4–35 °C).
Protect from moisture. If damp, discard material.
Compressive Strength
| Water | SikaLatex® R | |
| 1 day | > 2,000 psi (13.8 MPa) | 2,300 psi (15.9 MPa) |
| 7 days | 4,000 psi (27.6 MPa) | 4,500 psi (31.0 MPa) |
| 28 days | 5,000 psi (34.5 MPa) | 5,500 psi (37.9 MPa) |
Flexural Strength
| Water | SikaLatex® R | |
| 28 days | 750 psi (5.1 MPa) | 1,200 psi (8.2 MPa) |
Splitting Tensile Strength
| Water | SikaLatex® R | |
| 28 days | 450 psi (3.1 MPa) | 700 psi (4.8 MPa) |
Tensile Adhesion Strength
| Water | SikaLatex® R | |
| 28 days | 2,000 psi (13.8 MPa) | 2,000 psi (13.8 MPa) |
* Mortar scrubbed into substrate (73 °F (23 °C) and 50 % R.H.)
Application
Mixing Ratio
3/4 - 7/8 gal. (2.8 - 3.3 L) of liquid
Layer Thickness
| Neat | Min. | Max. |
| Water and diluted SikaLatex® R | 1/4" (6 mm) | 1" (25 mm) |
| undiluted SikaLatex® R | 1/8" (3 mm) | 1" (25 mm) |
| Extended | Min. | Max. |
| Water and SikaLatex® R | 1" (25 mm) | 4" (100 mm) |
Product Temperature
65–75 °F (18–24 °C)
Ambient Air Temperature
> 45 °F (7 °C)
Substrate Temperature
> 45 °F (7 °C)
Pot Life
~ 30 minutes
As the temperature will affect the pot life, application temperature:
-
Above 73 °F (23 °C) will reduce the pot life and slump
-
Below 73 °F (23 °C) will extend the pot life and slump
Finishing Time
~50–120 minutes
Coverage
| Neat | 0.42 ft3 (0.01 m3) |
| Extended with 32 lb (14.5 kg) of 3/8" (9.5 mm) gravel | 0.62 ft3 (0.02 m3) |
(Coverage figures do not include allowance for surface profile and porosity or material waste)
MIXING
- With water: Start with 3/4 gal. (2.8 L) of water added to the mixing vessel. Add 1 bag of SikaRepair®-222 while continuing to mix with a low-speed drill (400-600 rpm) and mixing paddle or in an appropriate mortar mixer. Add up to another 1/8 gal (0.5 L) of water to achieve desired consistency. Do not over-water.
- With SikaLatex® R: Pour 3/4 gal. (2.8 L) of SikaLatex® R into the mixing container. Slowly add powder, mix and adjust as above.
- With diluted SikaLatex® R: SikaLatex® R may be diluted up to 5:1 (water: SikaLatex® R) for projects requiring minimal polymer modification. Pour 3/4 gal. (2.8 L) of the mixture into the mixing container. Slowly add powder, mix and adjust as above.
Extension with aggregates:
- For applications greater than 1" (25 mm) in depth, add 3/8" (9.5 mm) coarse aggregate.
- The aggregate must be non-reactive (reference ASTM C-1260, C-227 and C-289), clean, well graded, SSD, have low absorption and high density, and comply with ASTM C-33 size number 8 per Table 2.
- Variances in aggregate may result in different strengths.
- The addition rate is 32 lb. (14.5 kg) of aggregate per bag. It is approximately 2.5-3 gal. (9.5-11.3 L) by loose volume of aggregate.
- Water may be varied to achieve the desired consistency. Do not over water.
APPLICATION
- The prepared mortar must be scrubbed into the substrate, filling all pores and voids. Force material against edge of repair, working toward center.
- After filling repair, consolidate, then screed.
- Allow mortar to set to desired stiffness, then finish.
- Mixing, placing and finishing should not exceed 45 minutes.
CURING TREATMENT
- As per ACI recommendations for Portland cement concrete, curing is required.
- Moist cure with wet burlap and polyethylene, a fine mist of water or a water based* compatible curing compound.
- Curing compounds adversely affect the adhesion of following lifts of mortar, leveling mortar or protective coatings.
- Moist curing should commence immediately after finishing. Protect freshly applied mortar from direct sunlight, wind, rain and frost.
* Pretesting of curing compound is recommended.