Sika Corporation -Cementitious Bonding Agents - Sika® Armatec® 1C

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BONDING PRIMER AND REINFORCEMENT CORROSION PROTECTION

Sika® Armatec® 1C is a cementitious, one-component, coating material with corrosion inhibitor, used as a bonding primer and/or for reinforcement corrosion protection.


Category: corrosion protection | mortar | steel coatings...

MasterFormat: Maintenance of Concrete | Maintenance of Cast-in-Place Concrete | Common Work Results for Masonry...


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Overview


Cementitious Bonding Agents - Sika® Armatec® 1C

BONDING PRIMER AND REINFORCEMENT CORROSION PROTECTION

Sika® Armatec® 1C is a cementitious, one-component, coating material with corrosion inhibitor, used as a bonding primer and/or for reinforcement corrosion protection.

  • Easy to mix, just add water.
  • User-friendly application
  • Excellent adhesion to mechanically prepared concrete and steel.
  • Performs as a corrosion inhibitor
  • High shear strength
  • Can be used on exterior, slab-on-grade surfaces.
  • Excellent bonding bridge for cement based repair mortars.
  • Long application life
  • Can be brushed on, or applied using a textured pattern pistol, hopperspray equipment.

Usage

  • Suitable as a bonding primer on cementitious mortar, steel, or when placing fresh, plastic concrete onto existing, mechanically prepared, saturated surface dry (SSD), hardened concrete.
  • Suitable in concrete repair assemblies as reinforcement corrosion protection.
  • Protection to reinforcing steel in areas of thin concrete cover where project documents, local building codes or ACI 301 "Specifications for Structural Concrete" recommendations for minimum concrete cover requirements may not have been met.

Advantages

  • Easy to mix, just add water.
  • User-friendly application
  • Excellent adhesion to mechanically prepared concrete and steel.
  • Performs as a corrosion inhibitor
  • High shear strength
  • Can be used on exterior, slab-on-grade surfaces.
  • Excellent bonding bridge for cement based repair mortars.
  • Long application life
  • Can be brushed on, or applied using a textured pattern pistol, hopper spray equipment.

Packaging

10 lb (4.5 kg) bag

Color

Red/orange powder

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS
  • Tested in accordance with ASTM B 117, the "Standard Practice for Operating Salt Spray (Fog) Apparatus"

Product Information

Shelf Life

12 months from date of production if stored properly in original, unopened and undamaged, sealed packaging

Storage Conditions

Store dry at 40° - 95° F (4° - 35° C).

Protect from moisture. If damp, discard material.

Application

Application Information

Product Temperature

65° - 75° F (18° - 24° C)

Ambient Air Temperature

> 45° F (7° C); maximum 95° F (35° C)

Substrate Temperature

> 45° F (7° C); maximum 95° F (35° C)

Application Time

> 1 hour

Temperatures will affect 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.

Application Steps

MIXING
  • Wet down all tools and mixing equipment prior to use.
  • Pour 1 - 1.2 quarts (0.95 - 1.10 liters) of cool, clean water [approximately 70° F (21° C)] into a suitably sized and clean mixing container, using a calibrated measuring jug or similar, to ensure strict control of water content. Do not overwater.
  • Mix mechanically with a low-speed drill (< 300 rpm) and mixing paddle or mortar mixer.
  • Mix to a uniform consistency for a time typically not to exceed a maximum 3 minutes. Mix should be free of lumps.
  • Refer to ACI 305R, "Guide to Hot Weather Concreting" & ACI 306R, "Guide to Cold Weather Concreting" when there is a need to place this product in hot or cold ambient and substrate temperature conditions. Thinner applications of cementitious repair mortars will be more sensitive to jobsite temperature conditions.
APPLICATION

As a bonding primer

  • Substrate must be Saturated Surface Dry (SSD). Surfaces should be damp with no standing water.
  • Apply using a stiff-bristle mason's brush or spray. To achieve good bond, Sika® Armatec® 1C must be scrubbed well into the substrate, filling all pores ensuring complete coverage of all surface irregularities.
  • Apply the freshly mixed patching mortar or concrete wet on wet, or up to the maximum recommended waiting time, onto the bonding primer.

As reinforcement corrosion protection

  • Apply by stiff-bristle mason's brush or spray.
  • Take special care to properly coat the underside of the totally exposed steel.
  • Allow material to dry 2 - 3 hours at 73° F (23° C), then apply a second coat at the same coverage rate.
  • Allow to dry again before the repair mortar or concrete is applied.
  • Pour or place cementitious repair mortar or concrete within 7 days.
CURING TREATMENT
  • Sika® Armatec® 1C must be protected against contamination and precipitation until installation of the cementitious repair mortar or concrete.


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Specifications

Corrosion Test

120 hours

Excellent

Coverage
Bonding Agent15 -18 ft2 (1.4 -1.7 m2)
Steel Reinforcement Protection45 lin.ft (13.7 m) on No. 4 rebar

(Coverage figures do not include allowance for surface profile and porosity of substrate, or material waste.)

Flexural Strength
28 days1,400 psi (9.7 MPa)
Layer Thickness
Minimum thickness / coatNumber of coats
Bonding Agent31 mils (0.8 mm)1
Steel Reinforcement Protection31 mils (0.8 mm)
2
Mixing Ratio
Bonding Agent1.2 quarts (1.1 L) of water
Steel Reinforcement Protection1 quart (0.95 L) of water
Pull-Out Resistance

Adhesion to mechanically prepared concrete

350 psi (2.4 MPa)

substrate failure

Slant Shear Strength
28 days2,600 psi (18.0 MPa)

* Bonding primer scrubbed into mechanically prepared, SSD substrate at 73° F (23° C) and 50% R.H.

Splitting Tensile Strength
28 days500 psi (3.4 MPa)
Waiting / Recoat Times

Bonding agent for concrete repair product installation

Wet-on-Wet
Minimum between layers (2 layers on steel reinforcement)2 hours