Product Data Sheet Show all documents

SikaRep®-40 HB

General Purpose Class 40 Fibre Reinforced Repair Mortar

SikaRep® - 40 HB is a class 40 cementitious mortar reinforced with polymer fibre  for repairing and rendering works.

  • Contain polymer fibre to improve mechanical properties
  • Good workability, easy to apply.
  • High build characteristics enable 40 mm to be placed without shuttering.
  • Factory preblended product ensures greater on-site quality control.
  • Good adhesion
  • Non-toxic
  • Suitable for rendering
Product Data Sheet Show all documents

Usage

  • Can be applied to overhead, horizontal or vertical concrete or mortar surfaces.
  • It is ideal for use in repairing damaged and spalled concrete caused by reinforcement corrosion.
  • SikaRep® - 40 HB can be used for most types general concrete repair and refurbishment work.
 

Advantages

  • Contain polymer fibre to improve mechanical properties
  • Good workability, easy to apply.
  • High build characteristics enable 40 mm to be placed without shuttering.
  • Factory preblended product ensures greater on-site quality control.
  • Good adhesion
  • Non-toxic
  • Suitable for rendering

Packaging

25 kg bag

Colour

Concrete grey

Product Details

Product Information

Chemical Base

Cement Based Powder

Shelf Life

9 months from the date of production.

Storage Conditions

Store in undamaged and unopened original sealed packaging in cool dry conditions. Protect from direct sunlight and frost.

Density

Approx. 2.00 kg/litre of freshly mixed mortar (wet)
Technical Information

Compressive Strength

> 40 N/mm2 at 28 days

Tensile Strength

> 2.0 N/mm2  at 7 days

Tensile Adhesion Strength

> 2.0 N/mm² at 7days

Application

Application Information

Mixing Ratio

Water : Powder = 1:5.88 parts by weight

(i.e. approx. 4.25 litre water per 25 kg bag)

Layer Thickness

Minimum 6 mm / Maximum 40 mm

Pot Life

Approx. 40 minutes
Consumption

Consumption

Approx. 68 bags/m3

(Depending on concrete surface and application method)
Application steps

MIXING

Pour approx. 4.25 litres of clean water into a suitable mixing container and slowly add all the powder while mixing continously with a mixing paddle attached to a low speed electric drill (max 500 rpm, with power approx. 1000 watt).

Thoroughly mix until a smooth, lump free consistency is achieved. A minimum mixing time of 3 minutes is recommended.

The water can be adjusted ± 10% to suit the consistency desired.

APPLICATION

For Concrete Repairing

  

While bonding coat is still tacky, pack the mortar well into cavity of repair. Use a placing rather than a rendering technique to fill all voids and ensure thorough  compaction is achieved.

Force the SikaRep® -40 HB against the edge of the repair and progressively work towards the centre.

For repair in excess of 40 mm thick, apply in layers ensuring that each previous layer is sufficiently hardened and well keyed. If previous layers are over 48 hours old. scabble the surface and dampen. A mix of 1 part of Sika® Latex to 1 part of fresh Portland cement by weight may be used as a bonding slurry between layers.

Steel Trowel the final layer if required to achieve a smooth, tight finish.

   

For Rendering

  

Apply the render with trowel. Press the mortar into concrete surface and level it to the required thickness. Wipe the render surface with a sponge or float to achieve a smooth finish.

CURING TREATMENT

As with all cementitious based mortar, SikaRep® - 40 HB must be protected against direct sunlight and wind while hardening. Cover all exposed mortar with wet hessian, plastic sheeting or use Sika curing compound.

CLEANING OF TOOLS

Application and mixing tools should be cleaned with water shile material is still fresh. Hardened material can only be removed mechanically.

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