Block Joint Mortars
PATRAWALA-AP is a high-quality, premixed, ready-to-use adhesive compound featuring Silica (SiO₂ 98%+). This cement-based adhesive is designed to be mixed with water to create a high-strength, thixotropic mortar. It is ideal for application over aerated lightweight concrete, fly ash bricks, cement hollow blocks, Autoclaved Aerated Concrete (AAC) blocks or for smoothing over block work surfaces in layers ranging from 2 mm to 8 mm thickness. The thin jointing provides high adhesion, enhancing the load-bearing capacity of masonry to meet or exceed national and international standards.
PATRAWALA–AP can be applied to
- Brick
- Concrete block
- AAC block
- Fly ash block
- Concrete surfaces
Suitable for both interior and exterior use, it prepares a thin bed adhesive for AAC, ALC, and cellular concrete blocks.
High Compressive Strength: Achieves compressive strengths of 12.1–14.5 MPa within 2 days, and 19.1–23.8 MPa and 34.1–36.9 MPa at 7 and 28 days respectively.
Time-Saving: Premixed formula eliminates the need for stacking and mixing individual materials, ensuring timely project completion.
Easy Application: Simply add water on-site for a quick and easy fitting process. No curing is required after block work is completed.
Better Coverage: Ensures efficient use of material.
Eco-Friendly: Contains no fly ash or slag.
The surface should be free from oil, grease, paint, loose plaster or dirt particles
20% to 22% of water by weight of material
Stirring for 3 minutes till it's free of lumps
Leave the mix to react for 5-10 minutes before use
Use between 5° C to 50° C
The mixture should be applied while the cement slurry is wet
Tap the block gently using wooden or rubber mallet
Wait 24 hours for subsequent application
Prevent direct contact with skin and eyes. In case of contact, wash with clean water immediately
| Name of Test | Test Method Standard (AP) | Specification Range (AP) |
|---|---|---|
| Bulk Density | BS EN 1015 Part-6: 1998 | 1300 - 1450 Kg/m³ |
| Water Powder Ratio | -- | 20-22 % by weight |
| Fresh Wet Density | -- | 1700 - 1800 Kg/m³ |
| Pot Life | BS EN 1015 Part-9: 1999 | 1.5 Hr @ 30° C |
| Flexure Strength | ASTM -C-348 | > 4.0 N/mm² @ 28 Days |
| Compressive Strength | ASTM C109 / C109M -16a | > 11-12 N/mm² @ 28 Days |
| Split Tensile Strength | ASTM C 1660-10 / ASTM C 1006-07 | > 1.1 N/mm² |
| Thickness of Layer | -- | 2 mm to 6 mm Layer |
| Water Curing | -- | Not Needed |
| Wastage | -- | Almost Nil |
| Final Finish | -- | Smooth Finish |
| Initial Setting Time | ASTM C807-21 | 1.5 to 2.0 Hr. |
| Final Setting Time | ASTM C807-21 | 7 Days |
| Pull of Adhesive Strength | ASTM D 7234-19 | 0.84 MPa |
| Bond Strength | ASTM C1583/C1583M: 2020 | 0.7 MPa |
| Flow Test | ASTM C 1437: 2020 | 25% |
| Size of Bag | Thickness of Plaster | Area Coverage |
|---|---|---|
| 40 kg | 2mm | 220 to 240 Sq. Feet |
| 40 kg | 3mm | 145 to 130 Sq. Feet |
Block joint mortar is typically packaged in moisture-resistant bags and has a shelf life of 6 months when stored properly. To maintain its quality, store the mortar in a cool, dry place, away from direct sunlight and moisture, ideally on pallets or raised platforms. Partially used bags should be resealed to prevent moisture absorption.
40 Kg Bag
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