Sika MonoTop®-622 F
Sika MonoTop®-622 F is a one-component, microfibre-reinforced, polymer-modified and early strength-gaining, cementitious mortar for horizontal and vertical concrete repair and resurfacing. It is based upon Sika proven and established MonoTop® technology, designed for effective repairs, with the environment in mind. MonoTop®-622F
- Fibre-reinforced improving overall resistance and performance.
- Easy to prepare; just add potable water.
- Does not require additional polymer when used for exterior applications.
- Contains integral corrosion inhibitor based on proven technology.
- Formulated with inert, non-reactive aggregates to eliminate potential Alkali-Aggregate Reactivity (AAR).
- Heat of hydration minimized to extend working time, especially in warm conditions.
- Excellent bond, tensile and flexural strengths.
- High early strength.
- Shrinkage-controlled to reduce length change.
- Very easy to apply; can be shaved or sculpted and easily finished.
- Product produces light grey repairs, similar to precast concrete.
- Approved by the Ministère des Transports du Québec (MTQ).
Usage
- On, above, and below grade.
- Horizontal and vertical defects.
- Cast-in-place, precast and tilt-up structures.
- Exterior and interior applications.
Advantages
- Fibre-reinforced improving overall resistance and performance.
- Easy to prepare; just add potable water.
- Does not require additional polymer when used for exterior applications.
- Contains integral corrosion inhibitor based on proven technology.
- Formulated with inert, non-reactive aggregates to eliminate potential Alkali-Aggregate Reactivity (AAR).
- Heat of hydration minimized to extend working time, especially in warm conditions.
- Excellent bond, tensile and flexural strengths.
- High early strength.
- Shrinkage-controlled to reduce length change.
- Very easy to apply; can be shaved or sculpted and easily finished.
- Product produces light grey repairs, similar to precast concrete.
- Approved by the Ministère des Transports du Québec (MTQ).
Colour
Light Grey
FAQ
Sika MonoTop®-622 F is an easy product to prepare, it does not require additional polymer when used for exterior applications.
Curing must commence immediately after placing and finishing. Moist-curing must be maintained for the first 24 hours only. Protect freshly applied mortar from direct sunlight, wind, rain and frost.
Apply a 3 mm (1/8 in) thick scrub coat of the mixed mortar into the substrate, filling all pores, voids and edges and completely covering the repair or resurfacing site. Onto the fresh scrub coat, force the mortar against the edge of the repair area or onto the resurfacing site, working toward the centre and observing minimum and maximum layer thicknesses. If the repair or resurfacing requires several lifts (layers), apply the mortar, leaving a rough profile, and then score the surface immediately in a crosshatch pattern to a depth of approximately 6 mm (1/4 in) to provide a key. Allow the layer to achieve initial set and then apply subsequent layers as soon as the previous lift will support it without being displaced. Allow the completed repair or resurfacing to set to desired stiffness; shave, cut or sculpt and then finish with a steel, wood or sponge float, or texture as required. If using a soft-to-medium density and dampened sponge to finish a repair, work in circular motion to remove trowel marks and merge the mortar with the parent substrate.
Note: Avoid over dampening the sponge or the face of the repair during finishing and avoid over-finishing the material.
During application, Substrate should be saturated surface dry (SSD) with no standing water, and repair sites or surfaces should be damp (saturated surface dry) but free from standing water or glistening water films.
Mix to a uniform consistency for a minimum of three (3) minutes. If a stiffer consistency is desired, hold back some of the water from the initial mix.
Up to maximum 2.7 L (0.71 US gal.) of water per 22.7 kg (50 lb).
For 22.7 kg (50 lb) of bagged material, pour approx. 2.7 L (0.71 US gal.) of potable water into a suitably sized and clean mixing container.
Note: The maximum water content of 2.7 L (0.71 US gal) must not be exceeded.
Remove all deteriorated concrete, dirt, oil, grease, other bond inhibiting materials from surface. Preparation work should be done by chipping, high pressure water blasting or other appropriate mechanical means. Obtain substrate aggregate fracture with a minimum surface profile of ± 3 mm (1/8 in) (ICRI / CSP 6 - 9). Dampen surface to be repaired with clean water. Substrate should be saturated surface dry (SSD) with no standing water during application.
Approximately 11.6 L (0.39 ft3) per 22.7 kg (50 lb) bag.
The minimum ambient and substrate temperature is +5 °C (41 °F) and rising at time of application. For best results, condition product to +18 to +29 °C (65 to 84 °F) prior to mixing and installation. Lower temperatures may result in slower strength development and longer cure times.
The application time takes about 20 to 40 minutes while the finishing time takes 40 to 60 minutes.