SikaQuick®-2500
Very Rapid hardening concrete repair mortar
SikaQuick®-2500 is a 1-component, very rapid hardening, early strength gaining, cementitious, patching material for concrete.
- Very rapid hardening as defined by ASTM C-928
- Epoxy coatings can be applied as early as 4 h
- Freeze / thaw resistant
- Easy to mix and apply - labor-saving
- Not gypsum-based
- High early strength
- Fast-setting
- Open to foot traffic in 45 minutes
- Open to vehicle traffic in 1 hour (+73 °F / +23 °C)
- Not a vapour barrier
Usage
- On, above and below grade on concrete
- Highway overlays and repairs
- Structural repair material for concrete roadways, parking structures, bridges, dams and ramps
- Full depth patching repairs
- Economical patching material for horizontal repairs of concrete and mortar
Advantages
- Very rapid hardening as defined by ASTM C-928
- Epoxy coatings can be applied as early as 4 h
- Freeze / thaw resistant
- Easy to mix and apply - labor-saving
- Not gypsum-based
- High early strength
- Fast-setting
- Open to foot traffic in 45 minutes
- Open to vehicle traffic in 1 hour (+73 °F / +23 °C)
- Not a vapour barrier
Packaging
25kg bag
Colour
Grey powder
Product Details
Chemical Base
Cement, selected aggregates and special additives
Shelf Life
12 months from date of production
Storage Conditions
Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between ~4 °C and +35 °C(40 °F and 95 °F). Always refer to packaging.
Compressive Strength
| Time | Compressive Strength |
| 1 hour | ~17 MPa (~2'500 psi) |
| 2 hour | ~27 MPa (~4'000 psi) |
| 1 day | ~39 MPa (~5'700 psi) |
| 7 days | ~51 MPa (~7'500 psi) |
| 28 days | ~58 MPa (~8'500 psi) |
These values were measured at 23 °C/ 50 % r.h. with a w/c= 0.12
Modulus of Elasticity in Compression
| ~4,6×106 psi (~32 GPa) after 28 days at +73 °F (+23 °C) / 50 % r.h. | (ASTM C-469) |
Tensile Strength in Flexure
| Time | Tensile strength in Flexure |
| 1 day | ~5.5 MPa (~800 psi) |
| 7 days | ~6.9 MPa (~1'000 psi) |
| 28 days | ~7.6 MPa (~1'100 psi) |
These values were measured at +23 °C/ 50% r.h. with a w/c=0.12
Splitting tensile strength
| Time | Splitting Strength |
| 1 day | 2.0 MPa (300 psi) |
| 7 days | 3.4 MPa (500 psi) |
| 28 days | 4.1 MPa (600 psi) |
These values were measured at +23 °C, 50% r.h. and w/c=0.12
Tensile Adhesion Strength
| ~2.0Mpa (substrate failure) after 28 days at +23°C/ 50% r.h. | (ACI 503) |
Shear Adhesion
| Time | Shear Adhesion Strength |
| 1 day | ~12 MPa (~1'800 psi) |
| 7 days | ~17 MPa (~2'500 psi) |
| 28 days | ~21 MPa (~2'700 psi ) |
These values were measured at +23 °C, 50% r.h. and w/c=0.12
Shrinkage
| ~0.06% after 28 days at +23 °C/ 50% r.h. | (ASTM C-596) |
Abrasion Resistance
| ~0.026 inches of wear at 1 hour (with a 28 days mortar at 23 °C/ 50% r.h./ w/c= 0.12) | (ASTM C-779) |
Freeze thaw resistance
| ~98% after 28 days at +23 °C/50% r.h. and w/c=0.12 | (ASTM C-666) |
Freeze Thaw De-Icing Salt Resistance
| ~0.080 lb/ft2 after 50 cycles at +23°C/ 50% r.h. | (ASTM C-672) |
Chloride Ion Diffusion Resistance
| <500 Coulombs after 28 days at +23 °C/ 50% r.h. | (ASTM C-1202) |
Application
Mixing Ratio
Approximately 2.6 - 2.8 litres of water per 25kg bag
Fresh mortar density
~2'200 kg/m3
Layer Thickness
| Minimum | Maximum | |
| Mortar | ~6mm | ~25mm |
| Extended with aggregate | ~25mm | ~150mm |
Ambient Air Temperature
+7 °C (+45 °F) min.
Substrate Temperature
+7 °C (+45 °F) min.
Pot Life
~15 minutes at +23 °C
Initial Set Time
| ~6 -10 minutes at +23 °C/ 50% r.h. | (ASTM C-266) |
Final Set Time
| ~10-20 minutes at +23 °C/ 50% r.h. | (ASTM C-266) |
Yield
Approximately 12.5ltr. When extended with 12 to 14kg of 10mm stone the yield is approximately 17 -18ltr.
MIXING
For best results, condition material to ~+18 – 24 °C (+65 – 75 °F) before mixing and using.
Mechanically mix in an appropriately sized mortar mixer. Wet down all tools and mixer to be used.
With water: Start with 2.6ltr of water added to the mixing vessel. Add 1 bag of SikaQuick®-2500 while continuing to mix. Add up to another 0.25ltr of water to achieve desired consistency. Do not over water.
With SikaLatex® : Pour 2.8ltr of SikaLatex® into the mixing container. Slowly add powder, mix and adjust as above.
With diluted SikaLatex® : SikaLatex® may be diluted up to 5:1 (water: SikaLatex® ) for projects requiring minimal polymer modification. Pour 2.8ltr of the mixture into the mixing container. Slowly add powder, mix and adjust as above. For application greater than 25mm in depth, add 10mm coarse aggregate. The aggregate must be non-reactive (referce ASTM C-1260, C-227 and C-289), clean, well graded, saturated surface dry, have low absorption and high density, and comply with ASTM C-33 size number 8 per Table 2.
Note: Variances in aggregate may results in different strengths. The addition rate is 8 - 13.6 kgs of aggregate per bag of SikaQuick®-2500 8 - 13.6 kgs of 10mm aggregate is approximately ~5-9 ltr by loose volume of aggregate. Do not exceed a slump of 180mm. This may cause excessive bleeding and retardation and will reduce the strength and performance of the material.
APPLICATION
Reinforcement Corrosion Protection / Primer Coating
Where a reinforcement coating is required, apply to the whole exposed circumference, SikaTop® Armatec®-110 EpoCem®. (Refer to Product Data Sheet). The repair mortar must be applied onto coating ‘wet’ on ‘wet’.
Concrete Bonding Primer
Prime the prepared substrate with a scrub coat of SikaQuick®-2500 by firmly scraping the scrub coat over the substrate surface to form a thin layer and fill any pores or cavities in the surface. Ensure the whole surface to be repaired is covered by the scrub coat. The repair mortar has to be applied onto primer ‘wet’ on ‘wet’
Repair Mortar
The repair mortar shall be applied onto the wet scrub coat between the minimum and maximum layer thicknesses without the formation of voids. Where layers are to be built up, to prevent sagging or slumping, each layer should be allowed to stiffen before applying subsequent layers “wet on wet”.
After filling repair, screed off excess. To control setting times, cold water should be used in hot weather and hot water used in cold weather.
Finishing
Finishing should be carried out to the required surface texture using a suitable float as soon as the mortar has started to stiffen.
Note: Mixing, placing, and finishing should not exceed 15 minutes maximum.
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 curing compound meeting ASTM C-309. Moist cure should commence immediately after finishing. If necessary, protect newly applied material from rain. To prevent from freezing, cover with insulating material.
CLEANING OF TOOLS
Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.