Product Data Sheet Show all documents
Sika MonoTop®-615 HB

Sika MonoTop®-615 HB

HIGH BUILD POLYMER MODIFIED REPAIR MORTAR

Sika MonoTop®-615 HB is a one component, thixotropic, high build, polymer modified, cementitious mortar containing silica fume.

  • Fast and easy to apply to clean, sound substrate in layers up to 60 mm thick
  • Excellent thixotropic behaviour, especially suitable for overhead and vertical application
  • One component system requiring only the addition of clean water
  • Compatible with the thermal expansion properties of concrete
  • Chloride free
  • Non-corrosive to reinforcing steel
  • Non-toxic, suitable for potable water
  • Minimized shrinkage tendency
  • Good sulphate resistance
Product Data Sheet Show all documents

Usage

  • Fast repair to overhead, horizontal or vertical concrete or mortar surfaces above and below ground level
  • Filling/ repair mortar for voids, holes, honeycomb areas, etc.
  • Repair spalled concrete caused by reinforcement corrosion
  • Repair and improve resistance to oils, sewage, chemicals, etc.
 

Advantages

  • Fast and easy to apply to clean, sound substrate in layers up to 60 mm thick
  • Excellent thixotropic behaviour, especially suitable for overhead and vertical application
  • One component system requiring only the addition of clean water
  • Compatible with the thermal expansion properties of concrete
  • Chloride free
  • Non-corrosive to reinforcing steel
  • Non-toxic, suitable for potable water
  • Minimized shrinkage tendency
  • Good sulphate resistance

Packaging

25kg bag

Colour

Grey powder

Product Details

Product Information

Chemical base

Cementitious materials, aggregate, additives and fibres

Shelf life

Min. 6 months if stored properly in original, unopened packaging

Storage conditions

Dry, cool, shaded place

Bulk Density

~1.15 kg/l
System information

System Structure

Sika MonoTop®-615 HB is a part of Sika MonoTop® system comprising of::

Bonding Primer / Reinforcement Corrosion Protection

Sika® MonoTop® 610

High performance polymer modified repair mortar

Sika MonoTop® R

or Sika MonoTop®-618 VN

or High build polymer modified repair mortar (recommended for overhead application)

Sika MonoTop®-615 HB
Technical Information

Compressive Strength

1 day

28 days

≥ 6 N/mm2

≥ 30 N/mm2

Tensile Strength in Flexure

≥ 6 N/mm2 (28 days)

ASTM C348

Tensile Adhesion Strength

≥ 1.5 N/mm2 (on concrete surface with proper primer)

ASTM D4541

 

Application

Application Information

Mixing ratio

15.20 – 15.60%
About 3.8 to 3.9 ltr of clean water per 25 kg bag

Fresh mortar density

~1.75 kg/l

Layer Thickness

Min. 5 mm / Max. 60 mm (20 mm for overhead applications)

Ambient Air Temperature

Min. 6°C / Max. 40°C

Substrate Temperature

Min. 6°C / Max. 40°C
Consumption

Yield

1 bag yields approx. 16.5 ltr of mortar.

Approx. 60 bags required for one m3 of mortar.
Application steps

MIXING

Sika MonoTop®-615 HB should be mechanically mixed in a clean container using a low-speed electric mixer (max. 500 rpm). Place required quantity of clean water as recommended above into a clean container and then add Sika MonoTop®-615 HB slowly while mixing. A minimum mixing time of 3 minutes is recommended.

APPLICATION

Brush apply a bonding coat onto the saturated surface dry substrate. Then, work wet-on-wet the mixed mortar well onto the substrate using a rendering rather than a placing technique to fill all pores and voids. Compact well. Force material against the edge of the repair, working towards the centre. For repairs in excess of 60 mm deep, apply in layers ensuring previous layers are well keyed and hardened. Finish lower layers with a heavy brush stipple to form a key for subsequent layers. If previous layers are over 48 hours old, needle gun the surface and dampen. Steel trowel the final coat if required.

CURING TREATMENT

To achieve the full potential of any cement based material, curing is essential. The use of standard curing methods (polythene sheets or damp hessian) is essential to prevent premature drying out of mortar.

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use. Hardened material can only be mechanically removed.

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