Product Data Sheet Safety Data Sheet Show all documents

SikaQuick® VOH LD

FAST SETTING, DUST REDUCED, ONE COMPONENT, CEMENTITIOUS VERTICAL AND OVERHEAD REPAIR MORTAR

SikaQuick® VOH LD is a fast setting, dust reduced, one component, ready-to-use repair mortar for vertical and overhead applications using specialty cement blends.

  • Dust reduced mortar
  • Minimal time required between lifts
  • Fast finishing time
  • Time/labor-saving material; application up to 3" (76 mm) on vertical surfaces in one layer
  • Easy to use; just add water
  • High bond strength ensures excellent adhesion
  • High early and ultimate strength
  • Increased freeze/thaw durability and resistance to deicing salts
  • Suitable for exterior and interior applications.
  • Overhead thickness up to 2" (50 mm) per lift
  • Fiber reinforced and polymer modified
  • Contains corrosion inhibitor
  • Rapid hardening as defined by ASTM C 928.
  • Use in cold temperatures with SikaQuick Winter Boost [minimum substrate 35o F (2o C); minimum ambient 20o F (- 7o C) during cure]
Product Data Sheet Safety Data Sheet Show all documents

Usage

  • Fast repairs to overhead and vertical concrete and mortar surfaces on grade, above and below grade.
  • As a repair material for building facades, parking structures, industrial plants, bridges, etc.
  • As a fast setting repair material for new construction defects.
 

Advantages

  • Dust reduced mortar
  • Minimal time required between lifts
  • Fast finishing time
  • Time/labor-saving material; application up to 3" (76 mm) on vertical surfaces in one layer
  • Easy to use; just add water
  • High bond strength ensures excellent adhesion
  • High early and ultimate strength
  • Increased freeze/thaw durability and resistance to deicing salts
  • Suitable for exterior and interior applications.
  • Overhead thickness up to 2" (50 mm) per lift
  • Fiber reinforced and polymer modified
  • Contains corrosion inhibitor
  • Rapid hardening as defined by ASTM C 928.
  • Use in cold temperatures with SikaQuick Winter Boost [minimum substrate 35o F (2o C); minimum ambient 20o F (- 7o C) during cure]

Packaging

44 lb (20 kg) bag

Color

Gray powder

Product Details

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

 
Technical Information

Compressive Strength

3 hours> 1,500 psi (10.3 MPa)
1 day> 3,000 psi (20.7 MPa)
7 days> 4,500 psi (31.0 MPa)
28 days5,500 psi (37.9 MPa)

Modulus of Elasticity in Compression

7 days2.2 x 106 psi (15.2 GPa)

Flexural Strength

1 day400 psi (2.8 MPa)
7 days600 psi (4.1 MPa)
28 days1,000 psi (6.9 MPa)

Splitting tensile strength

1 day200 psi (1.4 MPa)
7 days250 psi (1.7 MPa)
28 days500 psi (3.4 MPa)

Slant Shear Strength

1 day1,000 psi (6.9 MPa)
7 days1,600 psi (11.0 MPa)
28 days2,000 psi (13.8 MPa)

* Mortar scrubbed into mechanically prepared, saturated surface dry (SSD) substrate at 73 °F (23 °C) and 50 % R.H.

Pull-Out Resistance

28 days

> 250 psi (1.7 MPa)
Substrate failure

Shrinkage

28 days< 0.05 %

Rapid Chloride Permeability

28 daysLow range (between 1,000 - 2,000 Coulombs)

Application

Application Information

Mixing Ratio

6 - 6.5 pints (2.8 - 3.1 L) of clean, potable water per 44 pound (20 kg) bag

Fresh mortar density

125 lb/ft3 (2.0 kg/L)

ASTM C 138

Layer Thickness

Min.Max.
Overhead1/8" (3 mm)2" (51 mm) per lift
Vertical1/8" (3 mm)3" (76 mm) per lift

Product Temperature

65° - 75° F (18° - 24° C) before mixing with water

Ambient Air Temperature

> 45° F (7° C)

Substrate Temperature

> 45° F (7° C)

Set Time

10 - 25 minutes

ASTM C 266

Final set time

< 35 minutes

ASTM C 266

To better control setting times, cold water may be used in hot weather and hot water used in cold weather.

Application Time

Approximately 15 minutes

Finishing time

20 - 30 minutes

Waiting / Recoat Times

Time between liftsFinal Set time
Acrylic water-based (i.e. breathe-able)Minimum 4 hours
Epoxy / Polyurethane-based (i.e. vapor barrier)Minimum 6 hours

Compatibility and adhesion testing is always recommended.
Consumption

Coverage

0.44 ft3 (0.01 m3) per bag

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

MIXING

  • Wet down all tools and mixer to be used.
  • Mix mechanically with a low-speed drill (400–600 rpm) and mixing paddle or mortar mixer.
  • Mix to a uniform consistency, maximum 3 minutes.
  • Manual mixing can be tolerated only for less than a full unit.
  • Thorough mixing and proper proportioning of the powder and liquid is necessary.
  • Inaccurate proportioning of the powder to liquid will result in a finished product that may not conform to the typical published performance property values.

     

With water

  • Start mixing with 6 pints (2.8 L) of water per bag.
  • Adjust the water dosage by a maximum amount of +/- 1/2 pint if necessary, to achieve the desired consistency.
  • Do not over-water. Over-watering may result in difficulty handling and/or not meeting typical published performance property values.

With Sika Latex R

  • Start mixing with 6 pints (2.8 L) of SikaLatex®-R per bag.
  • Adjust the SikaLatex®-R dosage by a maximum amount of +/- 1/2 pint, if necessary, to achieve the desired consistency.
  • Do not overdose with SikaLatex®-R.  Using too much SikaLatex®-R may result in difficulty handling and/or not meeting typical published performance property values.

APPLICATION

  • The mixed SikaQuick® VOH LD must be worked well into the prepared substrate, filling all pores and voids.
  • Compact well. Force material against edge of repair working towards the center. Thoroughly compact the mortar around exposed reinforcement.
  • After filling repair, consolidate, then screed.
  • Finish with steel, magnesium, wood, plastic floats, or damp sponges, depending on the desired surface texture.

  

MULTIPLE LIFTS

  

  • Where multiple lifts are required, score top surface of already placed lift to produce a roughened substrate for the next lift.
  • Allow preceding lift to harden and achieve Initial Set.
  • SSD previous lift by lightly misting with clean water.  Remove all standing droplets.
  • Repeat procedure until desired installation thickness is achieved.  Finish the final lift of SikaQuick® VOH LD as described above.
  • If previous layers are over 6 hours old, mechanically prepare the substrate and dampen.
 

CURING TREATMENT

  • As per ACI recommendations for Portland cement concrete, curing is required.
  • Moist curing should commence immediately after finishing.
  • Moist cure with wet burlap, a fine mist of water topped with polyethylene sheeting, or a Sika® Antisol®-250 W*
  • Curing compounds adversely affect the adhesion of following lifts of additional mortars or protective coatings.
  • Protect freshly applied mortar from direct sunlight, wind, rain and frost.

* Pretesting of curing compound is recommended.

CLEANING OF TOOLS

  • Uncured product may be cleaned from tools and surfaces with water.  Cured product must be removed mechanically.

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