SikaTop®-123 Plus

POLYMER-MODIFIED, NON-SAG, CEMENTITIOUS MORTAR CONTAINING SILICA FUME PLUS MIGRATING CORROSION INHIBITOR

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.

  • 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)
  • 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)
Category:

Description

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
  • 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,

Storage Conditions

Store dry at temperatures ranging between +5 °C – +32 °C (41 °F – 89 °F). For best results, condition product between +15 °C – +24 °C (59 °F – 75 °F) before using. Protect Component A from freezing. If frozen, discard.

Density

2 000 kg/m3 (125 lb/ft3)

(ASTM C185)

Volatile organic compound (VOC) content

<0.5 g/L

Compressive Strength

24 hours

~ 20 MPa (2 900 psi)
7 days ~ 37 MPa (5 366 psi)
28 days ~ 50 MPa (7 250 psi)

* Compressive Stength (tested with SikaCem® Accelerator)

 

Temperature

Dosage

24 hours

2 days

3 days

28 days

oC (32 oF)

1 bottle (150 mL)

~1 MPa (145 psi)

~17 MPa (2465 psi)

~24 MPa (3480 psi)

~42 MPa (6091 psi)

oC (32 oF)

2 bottles (300 mL)

~2 MPa (290 psi)

~22 MPa (3190 psi)

~30 MPa (4351 psi)

~47 MPa (6816 psi)

10 oC (50 oF)

1 bottle (150 mL)

~20 MPa (2900 psi) ~34 MPa (4931 psi) ~40 MPa (5800 psi) ~54 MPa (7832 psi)
10 oC (50 oF)

2 bottles (300 mL)

~28 MPa (4061 psi) ~38 MPa (5511 psi) ~42 MPa (6091 psi) ~56 MPa (8122 psi)
23 oC (73 oF)

1 bottle (150 mL)

~27 MPa (3916 psi) ~34 MPa (4931 psi) ~40 MPa (5800 psi) ~56 MPa (8122 psi)

23 oC (73 oF)

2 bottles (300 mL)

~31 MPa (4496 psi)

~37 MPa (5366 psi)

~42 MPa (6091 psi)

~58 MPa (8412 psi)

Modulus of Elasticity in Compression

7 days

~17 GPa (2.4 x 106 psi)

28 days

~26 GPa (3.7 x 10psi)

Splitting Tensile Strength

21 days

~5 MPa (725 psi)

 

Shear Strength

24 hours

~7 MPa (1015 psi)

28 days

~17 MPa (2465 psi)

Pull-Out Resistance

28 days

Greater than concrete 

Chloride Ion Diffusion Resistance

28 days

Very low – between 100 and 1000 Coulombs

Chemical Resistance

Contact Sika Canada Inc.

Freeze thaw resistance

300 cycles Module of elasticity greater than 90%

Application

Mixing Ratio

A:B = 1:5.4 by weight depending on consistency required

Product Temperature

+15 °C à +24 °C (59 °F to 75 °F)

Ambient Air Temperature

> +7 °C (> 45 °F)

Substrate Temperature

> +7 °C (> 45 °F)

Finishing Time

Approx. 30 – 60 minutes after placing the mortar

Application Time

Approx. 15 min after mixing 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 Information, 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. Curing must begin immediately after placing and finishing. Moist-curing must be maintained for the first 24 hours only then apply Sika® Florseal WB curing compound.  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.