BJM (Block Jointing Mortar)
Product Detail:
- MYMIX – BJM is a thin‐bed, high strength, pre‐mixed mortar
- It is comprising of Portland cement, specially graded sand and admixture
- It is specially formulated and easily applied
- Giving a higher bonding with significantly higher air entraining properties
- It is a masonry mortar for use in laying bricks, block or stone
- It replaces conventional jointing mortar of 12‐18mm thickness with highly versatile 3mm thickness mortar
Advantages:
- Quick setting proprietary mortar essentially “ glues “ the block together and the next course is ready to lay within a very short time
- Extreme durability eliminates future maintains
- Non‐metallic doesn’t rust out, will not discolour wall
- Ready mixed mineral based products designed for new construction as well as renovation purpose
- Being premixed, it saves considerable time and labour
- It doesn’t cause damage to eco system
- Water resistant to limit efflorescence
- Being premixed, the raw materials are so chosen and processed that inhibits efflorescence
Suitable Substrates:
- Concrete Blocks
- Cement mortar blocks / bricks
- Concrete hollow blocks
- AAC Blocks
- Fly ash bricks
How to Apply:
- Add 25 kg of “MYMIX‐BJM (Block Jointing Mortar)” to approx. 6.5 ltrs. To 7.5 ltrs. Of clean tap water and stir properly for 5 minute by hand or an electric stirrer to get a smooth and homogeneous mixture
- After stirring wait for 5 minutes
- Apply a thin uniform layer of mortar on clean block with a mason’s trowel to make an even joint layer of 3 ‐4 mm thickness
- Remove excess material if any from the joints
- The proper preparation of the surface will make the fixing easier and quicker ensuring a better finish.
Technical Detail: (As per IS 15477 & ANSI 118.4)
| S.No | Testing Parameters | Specification |
|---|---|---|
| 1 | BJM – Mixing Ratio | 6.5 to 7.5 litre water for 25 kg Material
Approx: 25–30% by weight |
| 2 | Product Colour | Grey |
| 3 | Workability | Easy mixing and Self curing |
| 4 | Application | Better application and easy shpreading |
| 5 | Open Time @ 23 –27° C | 30 – 45 minutes |
| 6 | Pot life | 3 hours |
| 7 | Setting Time @ 23 – 27°C | 8 hours |
| 8 | Trafficable Time | 24 hours |
| 9 | Coverage for 3 mm bed thickness | 65–75 Sq – Ft / per 25 kg bag |
| 10 | Shear Adhesion: | |
| A | Dry Condition after 24 hrs | 3.0 KN |
| B | Dry condition after 14 days | 11.80 KN |
| C | Heat Ageing Condition | 8.5 KN |
| D | Wet condition | 7.0 KN |
| 11 | Tensile Adhesion | |
| A | Dry Condition | 1350 N |
| B | Wet condition | 1050 N |
Packing:
- 25 kg. Project packing of 40 kg size is available on demand
Shelf Life:
- Factory sealed bags are best before 12 months from the date of manufacturing in unopened condition stored in dry area.