SikaTop®-123 Plus
SikaTop®-123 Plus is a high performance, polymer-modified, 2-component, fast-setting, non sag cementitious mortar. It is designed especially for repair of overhead and vertical surfaces and is formulated with a migrating corrosion inhibitor to reduce corrosion (even in the adjacent concrete).
- High compressive and flexural strengths
- Bond strength ensures superior adhesion
- Increased density: excellent carbon dioxide resistance (carbonation) without adversely affecting water vapour transmission (not a vapour barrier)
- Enhanced with Sika FerroGard®-901, a migrating corrosion inhibitor - reduces corrosion even in the adjacent concrete
- Compatible with coefficient of thermal expansion of concrete
- Excellent freeze/thaw and salt scaling resistance
- Formulated with inert, non-reactive aggregates to eliminate potential Alkali-Aggregate Reactivity (AAR)
- Meets MTO specification for patching materials
- Meets AT B391 specification for patching materials
- Complies with NSF-ANSI standard 61 for potable water contact (special order only)
- Approved by the Ontario Ministry of Transportation and is qualified by The Road Authority (TRA)
- Approved by the Ministère des Transports du Québec (MTQ)
- Recognized by the the British Columbia Ministry of Transportation and Infrastructure (BC MoT)
- Meets CFIA and USDA requirements for use in food plants
Usage
- On grade, above, and below grade on concrete and mortar
- For structural concrete repairs on vertical and overhead surfaces
- For building facades, soffits, parking structures, industrial plants, walkways, bridges, tunnels, dams and ramps
Advantages
- High compressive and flexural strengths
- Bond strength ensures superior adhesion
- Increased density: excellent carbon dioxide resistance (carbonation) without adversely affecting water vapour transmission (not a vapour barrier)
- Enhanced with Sika FerroGard®-901, a migrating corrosion inhibitor - reduces corrosion even in the adjacent concrete
- Compatible with coefficient of thermal expansion of concrete
- Excellent freeze/thaw and salt scaling resistance
- Formulated with inert, non-reactive aggregates to eliminate potential Alkali-Aggregate Reactivity (AAR)
- Meets MTO specification for patching materials
- Meets AT B391 specification for patching materials
- Complies with NSF-ANSI standard 61 for potable water contact (special order only)
- Approved by the Ontario Ministry of Transportation and is qualified by The Road Authority (TRA)
- Approved by the Ministère des Transports du Québec (MTQ)
- Recognized by the the British Columbia Ministry of Transportation and Infrastructure (BC MoT)
- Meets CFIA and USDA requirements for use in food plants
Packaging
20.5 kg (45 lb) unit - (A) 3.5 L jug + (B) 17 kg bag
Colour
Concrete Grey when mixed
Product Details
ENVIRONMENTAL INFORMATION
- Conformity with LEED®v4 MR Credit (Option 1): Building Product Disclosure and Optimization - Environmental Product Declarations
- Conformity with LEED®v4 MR Credit (Option 1): Building Product Disclosure and Optimization - Material Ingredients
- Conformity with LEED®v4 MR Credit (Option 1): Building Product Disclosure and Optimization - Sourcing of Raw Materials
Shelf Life
Component A : 24 months in original, unopened packaging.
Component B : 12 months in original, unopened bag.
Storage Conditions
Store dry at temperatures ranging between +5 °C and +32 °C (41 °F and 89 °F). For best results, condition product between +15 °C and +24 °C (59 °F and 75 °F) before using. Protect Component A from freezing. If frozen, discard.
Density
| 2 000 kg/m3 (125 lb/ft3) | (ASTM C185) |
Compressive Strength
| 24 hours | ~ 20 MPa (2 900 psi) |
| 7 days | ~ 37 MPa (5 366 psi) |
| 28 days | ~ 50 MPa (7 250 psi) |
Splitting Tensile Strength
| ~5 MPa (725 psi) | (ASTM C496) 21 days |
Pull-Out Resistance
| 28 days | 500 psi (3.4 MPa) Substrate failure |
Shrinkage
| 28 days | 1 x 1 x 11-1/4’’ specimen | 0.05 % |
| 28 days | 3 x 3 x 11-1/4’’ specimen | 0.038 % |
Application
Mixing Ratio
A:B = 1:5.4 by weight depending on consistency required
Fresh Mortar Density
| 132 lb/ft3 (2.2 kg/L) | (ASTM C138) |
Product Temperature
+18 °C à +24 °C (65 °F to 75 °F)
Ambient Air Temperature
> +7 °C (> 45 °F)
Substrate Temperature
> +7 °C (> 45 °F)
Application Time
Approx. 15 min after mixing the mortar
Finishing Time
Approx. 30 - 60 minutes after placing the mortar
Yield
Approx. 10 L (0.353 ft3)
MIXING
Mix mechanically using a heavy-duty, low-speed drill (300 - 450 rpm) with a Mud Mixer/Box or Propeller-type paddle. Shake Component A before using, then pour approximately 85 % of its content in a clean mixer or pail. Add slowly Component B while continuing to mix until a uniform consistency is obtained (approx. 3 minutes). If a wetter consistency is required, add additional Comp. A and continue mixing until a homogenous consistency is achieved. For a smaller quantity, make sure that each component is properly premixed at the correct ratio.
APPLICATION
At time of application, the surface should be damp but saturated surface dry (SSD) with no glistening water films. A scrub coat should be applied prior to placement of mortar. Apply a 3 mm (1/8 in) thick scrub coat of SikaTop®-123 Plus into the substrate, filling all pores, voids and edges. Alternatively, SikaTop® Armatec-110 EpoCem® can be used as a bonding agent. Apply the desired mortar layer before bond coat dries. Force product against the edges of repair, working toward center. After filling the repair, consolidate then trim the surface flush with adjacent concrete sides. Allow mortar to reach initial set [30 – 60 min after placing at +23 °C (73 °F)], then finish with wood or sponge float for a textured surface.
For a smooth finish, use a steel trowel wiped with Comp. A during finishing.
If the repair requires several lifts (layers), apply the mortar leaving a rough profile and score the surface immediately in a crosshatch pattern using the corner of a steel trowel to a depth of approximately 6 mm (1/4 in) to provide a mechanical key (with exception to the last layer). Unfinished work from previous day must be roughened and any polymer film removed to ensure bond.
CURING TREATMENT
As per ACI 308 recommendations for cement concrete, curing is required. To achieve performance consistent with Technical Data, curing must be provided by recognized curing methods, such as wet burlap covered with white polyethylene film or approved water-based curing compound, such as Sika® Florseal WB-18 & -25. Alternatively, the use of Sika® Ultracure DOTTM or NCFTM wet curing blankets is strongly recommended. 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.
CLEAN UP
Clean all tools and equipment after use with water. Once hardened, the product can only be removed mechanically.
