SikaQuick®-2500
Very Rapid hardening, repair mortar
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SikaQuick®-2500 is a one-part, cementitious, very rapid hardening, early strength gain, cementitious, patching mortar for concrete.
- Very rapid hardening as defined by ASTM C 928
- Epoxy coatings can be applied as early as 4 hours at 73o F (23o C)
- 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 vehicular traffic in 1 hour at 73o F (23o C)
- Use in cold temperatures with SikaQuick Winter Boost [at ambient and substrate temperatures of 20o - 45o F (-7o - 7o C)]
Usage
- On grade, above grade and below grade concrete conditions
- Highway overlays and repairs
- Structural repair material for concrete roadways, parking structures, bridges, dams and ramps
- Full depth patching repairs (may require multiple lifts)
- Economical patching material for horizontal flatwork repairs of mortar lines and concrete surfaces
Advantages
- Very rapid hardening as defined by ASTM C 928
- Epoxy coatings can be applied as early as 4 hours at 73o F (23o C)
- 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 vehicular traffic in 1 hour at 73o F (23o C)
- Use in cold temperatures with SikaQuick Winter Boost [at ambient and substrate temperatures of 20o - 45o F (-7o - 7o C)]
Packaging
50 lb (22.7 kg) bag
Color
Gray powder
Product Details
APPROVALS / STANDARDS
- Meets ASTM C 928, Type R3
Shelf Life
12 months from date of manufacture if stored properly in original, unopened and undamaged, sealed packaging
Storage Conditions
Store dry at 40o - 95o F (4o - 35o C)
Protect from moisture. If damp, discard material.
Compressive Strength
73° F (23° C) | 20° F (-7° C) with 1 cup of SikaQuick® Winter Boost* | |
1 hour | 2,500 psi (17.2 MPa) | - |
2 hours | 4,000 psi (27.6 MPa) | 1,400 psi (9.7 MPa) |
1 day | 5,700 psi (39.3 MPa) | 4,500 psi (31.0 MPa) |
7 days | 7,500 psi (51.7 MPa) | 7,000 psi (48.3 MPa) |
28 days | 8,500 psi (58.6 MPa) | 8,000 psi (55.2 MPa) |
* Consult SikaQuick® Winter Boost Product Data Sheet.
Modulus of Elasticity in Compression
28 days | 4.6 ×106 psi (32 GPa) |
Flexural Strength
1 day | 800 psi (5.5 MPa) |
7 days | 1,000 psi (6.9 MPa) |
28 days | 1,100 psi (7.6 MPa) |
Splitting Tensile Strength
1 day | 300 psi (2.1 MPa) |
7 days | 500 psi (3.4 MPa) |
28 days | 600 psi (4.1 MPa) |
Tensile Adhesion Strength
Approximately 300 psi (2.1 MPa) Substrate failure; after 28 days | (ACI 503R) 73o F (23o C), 50% R.H. |
Slant Shear Strength
1 day | 1,800 psi (12.4 MPa) |
7 days | 2,500 psi (17.2 MPa) |
28 days | 2,700 psi (18.6 MPa) |
* Mortar scrubbed into mechanically prepared, SSD substrate at 73° F (23° C), 50 % R.H.
Shrinkage
28 days | 0.06 % |
Abrasion Resistance
28 days | 0.026 inch (0.66 mm) of wear at 1 hour |
Freeze-Thaw Stability
28 days (300 cycles) | 98% |
Freeze Thaw De-Icing Salt Resistance
50 cycles | 0.080 lb/ft2 (391 grams / m2) |
Rapid Chloride Permeability
28 days | < 500 Coulombs |
Application
Mixing Ratio
5 – 5.5 pints (2.4 – 2.6 L)
Layer Thickness
Minimum* | Maximum (per lift) | |
Neat | 1/4" (6 mm) | 1" (25 mm) |
Extended | 1" (25 mm) | 6" (152 mm) |
-
Do not feather edge.
-
Do not exceed 7" (178 mm) slump when extended.
-
Greater application thickness can be achieved with the addition of up to a maximum 50 lbs (22.7 kg) of 3/8 inch (10 mm) coarse aggregate.
-
The maximum aggregate extension is 50 lbs (22.7 kg) of coarse aggregate per bag. Maximum thickness per lift = 8" (203 mm).
* Minimum thickness is 1/2" (12.7 mm) with the use of SikaQuick® Winter Boost
Product Temperature
65° – 75° F (18° – 24° C)
Ambient Air Temperature
> 45° F (7° C)
20° - 45° F (-7° - 7° C) with the use of SikaQuick® Winter Boost
Substrate Temperature
> 45° F (7°C)
20° - 45° F (-7° - 7° C) on a frost-free surface with the use of SikaQuick® Winter Boost
Set Time
12 – 24 minutes | (ASTM C 266) 73o F (23o C), 50% R.H. |
Final Set Time
20 – 40 minutes | (ASTM C 266) 73o F (23o C), 50% R.H. |
Application Time
Approximately 15 minutes
Product temperature will affect the Application Time:
-
Above 73° F (23° C) will reduce the Application Time and workability
-
Below 73° F (23° C) will extend the Application Time and workability
Coverage
Neat | 0.43 ft3 (0.012 m3) |
Extended with 25 lbs (11.4 kg) of 3/8 inch (10 mm) pea gravel | 0.58 ft3 (0.017 m3) |
Extended with 50 lbs (22.7 kg) of 3/8 inch (10 mm) pea gravel | 0.77 ft3 (0.022 m3) |
(Yield figures do not include allowance for surface profile, porosity or material waste)
MIXING
- Wet down all tools and mixer to be used.
- Pour the required amount of clean potable water [approximately 70o F (23o C)] into a suitably sized and clean mixing container, using a calibrated measuring jug or similar, to ensure strict control of the water content. Do not over-water.
- Add 1 bag while continuing to mix with a low-speed drill (400-600 rpm) and mortar mixing paddle or in an appropriate mortar mixer.
- Once all the powder has been added, mix to a uniform consistency, maximum 3 minutes, until a lump-free blend is achieved.
- Thorough mixing and proper proportioning of the powder and liquid is necessary.
- Inaccurate proportioning of the powder to liquid will result in a finished product that may not conform to the typical published performance property values.
- With water or undiluted SikaLatex® R: Pour 5 pints (2.4 L) of liquid into the mixing container. Slowly add powder, mix and adjust as above. Add up to an additional 1/2 pint (0.24 L) maximum of liquid to achieve desired consistency. Do not over-water.
- With diluted SikaLatex® R: SikaLatex® R admixture may be diluted up to 5:1 (water: SikaLatex® R) for projects requiring minimal polymer modification. Pour 5 pints (2.4 L) of the mixture into the mixing container. Slowly add powder, mix and adjust as above.
-
With SikaQuick® Winter Boost
-
Pour the recommended volume of clean, potable water [> 34° F (1° C)] into a suitably sized and clean mixing container. There should be no ice in the water.
-
Add 1/2 or 1 cup per bag into the water and mix until it is dissolved.
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Add the contents of the SikaQuick®-2500 bag while continuing to mix.
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Refer to the current Product Data Sheet for complete and detailed instructions on the use of the SikaQuick® Winter Boost.
EXTENSION WITH AGGREGATES
- For applications greater than 1" (25 mm) in depth, add 3/8" (10 mm) coarse aggregate.
- The typical addition rate is 25 - 30 lb (11.4 -13.6 kg) of aggregate per bag. This is approximately 2.0 - 2.4 gallons (7.6 - 9.1 L) by loose volume of aggregate.
- Greater application thickness can be achieve with the addition of up to 50 lbs (22.7 kg) of 3/8" (10 mm) coarse aggregate.
- The aggregate must be non-reactive (reference ASTM C 1260, C 227 and C 289), clean, well graded, Saturated Surface Dry (SSD), have low absorption and high density, and comply with ASTM C 33 size number 8 per Table 2.
- Variances in the quality of the aggregate will affect the physical properties of SikaQuick®-2500 and may result in different strengths.
- Do not use limestone aggregate.
- Do not exceed a slump of 7" (178 mm). This may cause excessive bleeding and retardation and may reduce the strength and performance of the material.
APPLICATION
- A neat mix of SikaQuick®-2500 mortar must be scrubbed into the mechanically prepared, SSD substrate. Be sure to work into all pores and voids.
- Force material against edge of repair, working toward center. After filling repair area, screed off excess.
- Allow material to set to desired stiffness, then finish with wood or sponge float for a smooth finish, or broom or burlap-drag for a rough finish.
- If a smoother finish is desired, a magnesium float should be used.
- To assist in the finishing process, use SikaFilm® finishing aid. Consult current Product Data Sheet.
- Mixing, placing, and finishing should not exceed 15 minutes maximum.
- Refer to ACI 305 the "Guide to Hot Weather Concreting" or ACI 306 the "Guide to Cold Weather Concreting" when there is a need to place this product while either hot or cold temperatures prevail. Thinner placements will be more sensitive to the temperature conditions.
CURING TREATMENT
- As per ACI recommendations for portland cement concrete, moist curing is required.
- Moist cure with wet burlap and polyethylene, with a fine mist of water or with a water based,* compatible, curing compound meeting ASTM C 309.
- Moist curing should commence immediately after finishing.
- Protect freshly applied mortar from direct sunlight, wind, rain and frost.
- To prevent from freezing, cover with insulating material (e.g. curing blanket).
* Pretesting of curing compound is recommended.