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M70 – STONE REPAIR MORTAR Product
Engineered to match the physical properties of natural stone such as sandstone and limestone.
Jahn M70 Stone Repair Mortar is a mineral-based, single-component mortar that is supplied ready to mix with water. Containing no acrylic or latex bonding agents or additives, M70 is completely vapour permeable at any depth. This allows water, water vapour and salts to reach the surface protecting the substrate from failure due to freeze/thaw cycles and salt expansion.
Available in a range of laboratory engineered variants to match the physical properties of the substrate being repaired.
*Jahn M70 may only be purchased by certified installers.
Jahn M70 Natural Stone Repair Mortar is available in a wide range of formulations for the repair of all types of natural stone including:
- M70 Sandstone Repair Mortar – specially formulated for repairing sandstone
- M70 Limestone Repair Mortar – specially formulated for repairing limestone
- M70 Marble Repair Mortar – specially formulated for repairing marble
- M70 Staircase Repair Mortar – specially formulated for the repair of natural stone steps
- Engineered in the lab, failure free in the field
- Single component mixes with water only
- No synthetic bonding agents – fully vapour permeable
- Scientifically controlled – no on-site chemistry resulting in product variation
- Available in a wide range of standard colours. Custom colours available on request. Closely match existing masonry.
- Laboratory engineered to match the physical properties of existing stone. Ensures that the repair mortar and stone react to the environment in the same way.
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Description
International Manufacturer of Precision Engineered Helical Bars, Wall Ties & Fixings
Engineered to match the physical properties of natural stone such as sandstone and limestone.
Jahn M70 Stone Repair Mortar is a mineral-based, single-component mortar that is supplied ready to mix with water. Containing no acrylic or latex bonding agents or additives, M70 is completely vapour permeable at any depth. This allows water, water vapour and salts to reach the surface protecting the substrate from failure due to freeze/thaw cycles and salt expansion.
Available in a range of laboratory engineered variants to match the physical properties of the substrate being repaired.
*Jahn M70 may only be purchased by certified installers.
Jahn M70 Natural Stone Repair Mortar is available in a wide range of formulations for the repair of all types of natural stone including:
- M70 Sandstone Repair Mortar – specially formulated for repairing sandstone
- M70 Limestone Repair Mortar – specially formulated for repairing limestone
- M70 Marble Repair Mortar – specially formulated for repairing marble
- M70 Staircase Repair Mortar – specially formulated for the repair of natural stone steps
- Engineered in the lab, failure free in the field
- Single component mixes with water only
- No synthetic bonding agents – fully vapour permeable
- Scientifically controlled – no on-site chemistry resulting in product variation
- Available in a wide range of standard colours. Custom colours available on request. Closely match existing masonry.
- Laboratory engineered to match the physical properties of existing stone. Ensures that the repair mortar and stone react to the environment in the same way.
Jahn M70 – Sandstone 0012/100
| Product Attributes | Value |
|---|---|
| Specific gravity (kg/dm3) | 1.5 |
| Bending/Tensile strength (N/mm2) | 1.5 – 2.5 |
| Compression strength (N/mm2) | 10.0 – 18.0 |
| Dynamic E-modulus (KN/mm2) | 10.0 – 14.0 |
| Water absorption (%) | 12.0 |
| Water mixing factor (litre/25kg) | 190 – 240 |
| Volume mixed mortar (ml/kg) | 700 |
| Consumption (kg/m2, 15 mm thickness) | 1.4 |
| Linear expansion coefficient (%) | 0.01 |
| Hydraulic expansion coefficient (%) | 0.07 |
| Water vapour permeability (my) | 20.03 |
| Capillary water absorption (w value) | 6.84 |
Jahn M70 – Limestone 0022/200
| Product Attributes | Value |
|---|---|
| Specific gravity (kg/dm3) | 1.6 |
| Bending/Tensile strength (N/mm2) | 2.0 – 4.0 |
| Compression strength (N/mm2) | 13.0 – 19.0 |
| Dynamic E-modulus (KN/mm2) | 13.5 – 18.0 |
| Water absorption (%) | 9.1 |
| Water mixing factor (litre/25kg) | 180 – 200 |
| Volume mixed mortar (ml/kg) | 850 |
| Consumption (kg/m2, 15 mm thickness) | 1.2 |
| Linear expansion coefficient (%) | 0.01 |
| Hydraulic expansion coefficient (%) | 0.05 |
| Water vapour permeability (my) | 35.88 |
| Capillary water absorption (w value) | 4.21 |
This video demonstrates the helical bars being used to create deep brick beams to span a window opening. The stainless steel helical reinforcing bars are bonded with WHO-60 polymer modified grout into cut slots cut into masonry. It offers a quick, simple and durable solution for strengthening and stabalising damaged masonry structures
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