SikaQuick®-2500
VERY RAPID-HARDENING 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 C928
- Can be used with Sikacem® Accelerator for cold conditions, increased early strengths and reduced curing time
- Compatible with Sikafloor®, SikaBond®, and Sika® AcouBond systems
- Allows application of an epoxy coating within 4 hours
- Freeze/thaw resistant
- Easy to use; economical patching and labour saving material
- Contains no added chlorides
- Formulated with inert, non-reactive aggregates to eliminate potential Alkali-Aggregate Reactivity (AAR)
- Open to foot traffic in 45 minutes, to vehicle traffic in 1 hour [+23 °C (73 °F)]
- Easily applied to clean, sound substrates
- Not a vapour barrier
Usage
- Use on grade, 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
- Horizontal repairs of concrete and mortar
Advantages
- Very rapid hardening as defined by ASTM C928
- Can be used with Sikacem® Accelerator for cold conditions, increased early strengths and reduced curing time
- Compatible with Sikafloor®, SikaBond®, and Sika® AcouBond systems
- Allows application of an epoxy coating within 4 hours
- Freeze/thaw resistant
- Easy to use; economical patching and labour saving material
- Contains no added chlorides
- Formulated with inert, non-reactive aggregates to eliminate potential Alkali-Aggregate Reactivity (AAR)
- Open to foot traffic in 45 minutes, to vehicle traffic in 1 hour [+23 °C (73 °F)]
- Easily applied to clean, sound substrates
- Not a vapour barrier
Packaging
25 kg (55 lb) bag
Colour
Powder / Concrete Grey
Product Details
APPROVALS / CERTIFICATES
- Product recognized by the British Columbia Ministry of Transportation (BC MoT)
- Meets the requirements of CFIA and USDA for use in food plants
Shelf Life
12 months in original, unopened packaging.
Storage Conditions
Store (unopened) in a dry place at temperatures between +5 °C and +32 °C (41 °F and 89 °F). For best results, condition product at temperatures between +18 °C and +29 °C (65 °F and 84 °F) before using.
Compressive Strength
| Compressive Strength | Mortar ASTM C109 | Concrete* ASTM C39 |
| 1 hour | - | 8 MPa (1 160 psi) |
| 2 hours | 22 MPa (3 200 psi) | 25 MPa (3 630 psi) |
| 4 hours | 35 MPa (5 100 psi) | - |
| 1 day | 40 MPa (5 800 psi) | 33 MPa (4 790 psi) |
| 7 days | 53 MPa (7 687 psi) | 35 MPa (5 100 psi) |
| 28 days | 53 MPa (7 687 psi) | 37 MPa (5 366 psi) |
*Concrete mix was tested at the addition rate of 12 kg (26.5 lb) of clean, well graded, saturated surface dry, low absorption and high density coarse aggregate. Water was added [2.87 L (0.75 US gal.) per 25 kg (55 lb) bag] to achieve a 125 to 175 mm (5 to 7 in) slump.
Splitting Tensile Strength
| 6.2 MPa (899 psi) | (ASTM C496) 28 days |
Pull-Off Strength
| ~2,0 MPa (~300 psi ) (substrate failure) after 28 days at +23 °C (73 °F) / 50 % r.h. | (ACI 503) |
Shear Adhesion Strength
| 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. (73 °F) w/c = 0,12
Shrinkage
| 0.08 % | 0.042 % (ABB) |
Freeze thaw resistance
| 98 % | (ASTM C666) 300 cycles |
Chloride Ion Diffusion Resistance
| < 500 Coulombs after 28 days at +23 °C (73 °F) / 50 % r.h. | (ASTM C1202) |
Application
Mixing Ratio
2.6 – 2.87 L (5 1`2 – 6 pints) of water per bag
Fresh Mortar Density
~2 200 kg/m3 (~3 718 lb/yd3)
Layer Thickness
| Minimum | Maximum | |
| Mortar | 6,0 mm (1/4 in) | 25 mm (1 in) |
| Extended with aggregate | 25 mm (1 in) | 150 mm (6 in) |
Initial Set Time
| Approx. 14 – 28 minutes | (ASTM C266) |
Final Set Time
| Approx. 20 – 40 minutes | (ASTM C266) |
Yield
Approx. 13 L (0.459 ft3)
When extended with 12 – 14 kg (26 – 30 lb) of 10 mm (3/8 in) aggregate, yield is approx. 17 – 18 L (0.6 – 0.64 ft3).
MIXING
Mechanically mix in an appropriately sized mortar mixer. Start with 2.6 L (5 1/2 pints) of water added to the mixing vessel. Add one (1) bag of SikaQuick®-2500 while continuing to mix. Add up to another 270 mL (1/2 pint) of additional water to achieve desired consistency. For application greater than 25 mm (1 in) in depth, add 11 kg (24 lb) of 10 mm (3/8 in) coarse aggregate. The aggregate must be non-reactive (as per ASTM C1260, C227, and C289), clean, well graded, saturated surface dry, have low absorption, high density and comply with ASTM C33, size number 8 per table 2.
Note: Do not overwater the mix. This may cause excessive bleeding and retardation and will reduce the strength and performance of the material.
APPLICATION
A scrub coat should be applied prior to placement of mortar. Apply a 3 mm (1/8 in) thick scrub coat of SikaQuick®-2500 into the substrate, filling all pores, voids and edges. Onto the fresh scrub coat, force the mortar against the edge of the repair area or onto the resurfacing site, working towards the centre and observing minimum and maximum layer thicknesses. After filling repair, screed off excess. Allow concrete to set to desired stiffness, then finish. If a smoother finish is desired, use a magnesium float. Mixing, placing and finishing should not exceed 15 minutes maximum. To control setting times, cold water should be used in hot weather and hot water in cold weather.
CURING TREATMENT
Protect newly applied material from rain for at least two (2) hours. To prevent from freezing, cover with insulating material. If necessary, cure using Sika® Florseal® WB-18 & -25, which meets ASTM C309 requirements. Do not moist/wet cure.
CLEAN UP
Clean all tools and equipment immediately after use with water. Once hardened, material can only be removed manually or mechanically.
FAQ
SikaQuick®-2500 is not a vapour barrier
As with all cement-based materials avoid contact with aluminum to prevent adverse reaction and possible product failure. Insulate potential areas of contact by coating aluminum bars, rails, posts, etc. with an appropriate epoxy such as Sikadur®-32 HiMod.
Protect newly applied material from rain for at least two (2) hours. To prevent from freezing, cover with insulating material. If necessary, cure using Sika® Florseal® WB-18 & -25, which meets ASTM C309 requirements.
Note: Do not moist/wet cure. It is also important to protect stored material from exposure to rain, condensation and high humidity as moisture may penetrate packaging, causing lumps.
A scrub coat should be applied prior to placement of mortar. Apply a 3 mm (1/8 in) thick scrub coat of SikaQuick®-2500 into the substrate, filling all pores, voids and edges. Onto the fresh scrub coat, force the mortar against the edge of the repair area or onto the resurfacing site, working towards the centre and observing minimum and maximum layer thicknesses. After filling repairs, screed off excess. Allow concrete to set to desired stiffness, then finish. If a smoother finish is desired, use a magnesium float. Mixing, placing and finishing should not exceed 15 minutes maximum. To control setting times, cold water should be used in hot weather and hot water in cold weather.
Prime the prepared surface by spreading a thin brushed or rubbed adhesion layer of SikaQuick-2500® before applying the mortar. The repair mortar must be applied before the adhesion layer dries.
Steel reinforcement should be thoroughly prepared by mechanical cleaning to remove all traces of rust. Where corrosion has occurred due to the presence of chlorides, the steel should be high pressure washed with clean water after mechanical cleaning. Prime reinforcement steel using SikaTop® Armatec-110 EpoCem® (Consult Product Data Sheet).
Saturate the surface to be repaired with clean water. Substrate should be saturated surface dry (SSD) with no standing water prior to application.
Remove all deteriorated concrete, dirt, oil, grease or any contaminants or conditions that may affect adhesion or overall product performances. Be sure repair area is not less than 6 mm (1/4 in) in depth. Following ICRI Guideline 310.2, the concrete surface must be clean, sound and mechanically prepared to obtain a surface profile of CSP 6 – 10 (ex : hydrodemolition, scarification, scabbling + sandblasting, etc.). Follow ICRI Guideline 310.1 for the preparation of the repair perimeter, the repair area geometry and for the cleaning of the concrete and reinforcing steel surfaces. Saw-cutting the edges is recommended. Saturate the surface to be repaired with clean water. Substrate should be saturated surface dry (SSD) with no standing water prior to application. Verify the absence of micro cracking following ICRI Guideline 310.2. To ensure optimum repair results, the effectiveness of cleaning and preparation should be assessed by a pull-off test.
Initial Set Time of SikaQuick®-2500 is approximately 14 - 28 min, while the Final Set Time is approximately 20 - 40 min. To control setting times, cold water should be used in hot weather and hot water in cold weather.
SikaQuick®-2500 has a very rapid hardening as defined by ASTM C928 and can be used with Sikacem® Accelerator for cold conditions, increased early strengths and reduced curing time. The material is open to foot traffic in 45 minutes, to vehicle traffic in 1 hour [+23 °C (73 °F)]
Allows application of an epoxy coating within four (4) hours
2.6 – 2.87 L (5 1/2 – 6 pints) of water per bag
About 15 min after adding powder to the water.
SikaQuick®-2500 is freeze/thaw resistant.
Minimum application thickness: 6 mm (1/4 in) as a mortar and 25 mm (1 in) when extended with aggregate. Maximum application thickness: 50 mm (2 in) and 150 mm (6 in) when extended with aggregates.
Compatible with Sikafloor®, SikaBond®, and Sika® AcouBond systems
Not compatible with normal-setting bonding agents, such as SikaTop® Armatec-110 EpoCem® and Sikadur®-32 Hi-Mod.
13 L approx. (0.459 ft3)
When extended with 12 – 14 kg (26 – 30 lb) of 10 mm (3/8 in) aggregate, yield is approx. 17 – 18 L (0.6 – 0.64 ft3).
For best results, condition product to temperatures between +18 °C and +29 °C (65 °F and 84 °F) prior to mixing and installation. Lower temperatures may result in slower strength development and longer cure times.
Minimum ambient and surface temperatures : + 7 °C (44 °F) and rising.