Product Data Sheet Show all documents
Sika MonoTop® R

Sika MonoTop® R

HIGH PERFORMANCE POLYMER MODIFIED REPAIR MORTAR

Sika MonoTop® R is a one component, thixotropic, polymer modified, fibre reinforced, cementitious mortar containing silica fume.

  • Fast and easy to apply
  • Requires only the addition of clean water
  • Adjustable consistency
  • Compatible with thermal expansion properties of concrete
  • Chloride-free, non-corrosive
  • Non-toxic
  • Fibre incorporated to prevent micro crack
  • Minimized shrinkage tendency
  • High bond strength
  • Greatly reduced water and carbon dioxide permeability
  • Good sulfate resistance
  • Improved resistance to oils and chemicals
Product Data Sheet Show all documents

Usage

  • Fast repairs to horizontal or vertical concrete or mortar surfaces above and below ground level.
  • Filling / repair mortar for voids, honeycombed areas, etc.
  • Repair of spalled concrete caused by reinforcement corrosion.
  • Repairs with improved resistance to oils, sewage, chemicals, etc.
 

Advantages

  • Fast and easy to apply
  • Requires only the addition of clean water
  • Adjustable consistency
  • Compatible with thermal expansion properties of concrete
  • Chloride-free, non-corrosive
  • Non-toxic
  • Fibre incorporated to prevent micro crack
  • Minimized shrinkage tendency
  • High bond strength
  • Greatly reduced water and carbon dioxide permeability
  • Good sulfate resistance
  • Improved resistance to oils and chemicals

Packaging

25 kg bag

Colour

Powder / Grey

Product Details

Product Information

Shelf life

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

Storage conditions

Dry, cool, shaded place

Bulk Density

~ 1.45 kg/l
Technical Information

Compressive Strength

1 day

≥ 15.0 N/mm²

28 days

≥ 45.0 N/mm²

Tensile Strength in Flexure

~ 8 N/mm² (28 days, ±10%)

ASTM C348

Tensile Adhesion Strength

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

ASTM D4541

Application

Application Information

Mixing ratio

13.5 – 14.0%

About 3.40 – 3.50 litres of clean water per 25 kg bag

Fresh mortar density

~ 2.15 kg/l

Layer Thickness

Minimum 5 mm

Maximum 30 mm

Substrate Temperature

+6 °C min. / +40 °C max.

Pot Life

~ 30 minutes (at 27 °C / 65 % r.H)
Consumption

Consumption

1 bag yields approx. 13.3 litres of mortar

Approx. 75 bags required for 1 (one) m³ of mortar
Application steps

MIXING

Sika MonoTop® R should be mechanically mixed in a clean container using a low-speed electric mixer (max. 500 rpm). Place quantity of water required (3.4–3.5 litres for 25 kg of Sika MonoTop® R) into a clean container and then add Sika MonoTop® R slowly while mixing. A minimum mixing time of 3 minutes is recommended to thoroughly blends the components.

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 20 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. In warm or windy weather, the use of standard curing methods are necessary (use of polythene sheets or damp hessian) 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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