Product Data Sheet Show all documents

Sika® Block Joining Mortar

Ready to use mortar for fixing AAC blocks, Concrete blocks & fly ash Bricks

Ready to use grey cement based non-shrink, self- curing mortar for fixing AAC blocks, Concrete blocks, fly ash bricks etc.

  • Ready to use, only water to be added.
  • Thinner jointing material with very high tensile adhesion strength improving the overall masonry strength.
  • Better bond than conventional cement based mortar
  • Faster to apply due to good spreadable properties.
  • Excellent high strength & water retention properties
  • Economical as quantity of mortar is less than conventional mortar
  • Self-curing.
Product Data Sheet Show all documents

Usage

Fixing and Jointing masonry units like AAC blocks, Concrete blocks, fly ash bricks etc.  

Advantages

  • Ready to use, only water to be added.
  • Thinner jointing material with very high tensile adhesion strength improving the overall masonry strength.
  • Better bond than conventional cement based mortar
  • Faster to apply due to good spreadable properties.
  • Excellent high strength & water retention properties
  • Economical as quantity of mortar is less than conventional mortar
  • Self-curing.

Packaging

30 kg bag

Colour

Grey powder

Product Details

Product Information

Chemical Base

Cementitious mortar modified with polymers.

Shelf Life

6 months from date of production

Storage Conditions

Stored properly in original unopened, sealed and undamaged packaging in dry and cool conditions.

Density

Bulk Density : ~1.33 kg/l (at +27°C)    
 
Technical Information

Compressive Strength

>6 N/mm²  at 28 days                                                 (According to EN 1015-11)

Tensile Adhesion Strength

≥0.8 N/mm²                  (Accordng to EN1348)
 

Application

Application Information

Layer Thickness

3-4 mm

Ambient Air Temperature

+5°C min. / +45°C max.

Substrate Temperature

+5°C min. / +45°C max.

Pot Life

90  minutes
Consumption

Consumption

~3 -4 kg powder required / Sqm for 3 mm average thickness.
Application steps

MIXING

Water: Powder = 0.22 to 0.24 by weight (6.6l to 7.2 l water per 30 kg bag).  Mixing Time : 3 minutes minimum

APPLICATION

Sika® Block Joining Mortar must be mechanically mixed using a forced action mixer or in a clean container using a drill and mixing paddle (< 500 rpm). A normal concrete mixer is not suitable. Mix thoroughly with clean water for a minimum of 3 minutes. Leave material to stand in container until the majority of bubbles have dispersed (minimum 5 minutes).Then remix the material for 15 seconds - the product is now ready for use.

If the substrate is very porous, if the temperature is high and/or the relative humidity low, it is advisable to dampen the surface. Do not leave any standing water.

Apply a thin uniform Layer of Sika® Block  Joining Mortar  2 to 3 mm thick on the clean & levelled surface of masonry units using proper trowel

Place the next course of masonry units on evenly jointing mortar bed in proper line & level. Each masonry unit shall be properly bedded and set in position by gently pressing with handle of trowel.

Inside unit of the masonry unit shall be applied with mortar before the next unit is laid & pressed against it especially in case of bricks.

Clean the excess material, if any immediately. Continue the procedure for the entire masonry work.

Do not disturb the blocks /bricks setting for first 24 hours.

CLEANING OF TOOLS

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

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