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Product Description
BioD-Mat® 70 blanket is woven from machine-spun bristle coir twines. This semi-permanent 100% biodegradable, strong and durable bristle coir woven blankets provide higher resistance upon installation while supporting growth and development of vegetation. BioD-Mat® 70 blanket has field functional longevity of 4-6 years. These blankets allow designers and specifiers to go beyond the design limits of other types of organic erosion control blankets. These strong, durable and biodegradable blankets play an important role in soil bioengineering. The open weave in the BioD-Mat® 70 blanket allow reseeding before and after installation. The 0.50 in x 0.50 in opening in the blanket allows planting plugs through the blanket without cutting the blanket. The 9.8 ft (3m) and 13.1 ft (4m) wide blankets have one seam in the mat.
Applications
- Slope Stabilization
- Streambank Stabilization
- Channel Restoration
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Advantages over Composite TRMs
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Warning: Be aware of poor quality woven coir mats in the market. Actual specification of some of these products may be much inferior to their published specifications. In order to achieve intended results, make sure to use correct product. |
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| CT 7 coir mat shown in the photo does not meet BioD-Mat® 70 specs. Use of #7 in the trade name does not mean that it is equal in quality to BioD-Mat® 70. CT 7 product not only has a larger open area than BioD-Mat® 70 but it is also weaker in tensile strengths. As you can see: CT 7 is more comparable to RoLanka’s BioD-Mat® 60 |
BioD-Mat® 70 Roll Size
3.28 ft x 83 ft = 30 SY/roll (1m x 25m =25 m2/roll)
6.5 ft x 165ft= 120 SY/roll (2m x 50m =100 m2/roll)
9.8 ft x 165 ft = 180 SY/roll (3m x 50m =150 m2/roll)
13.1 ft x 83 ft= 120 SY/roll (4m x 25m =100 m2/roll)
Other BioD-Mat®
BioD-Mat® 40
BioD-Mat® 60
BioD-Mat® 90
BioD-Mat® 70 blanket does not contain any synthetic materials to harm wildlife.
Sri Lanka patent # 11159
Manufactured by RoLanka.
Additional Information
| Unit weight | 23 oz/SY (780 g/sq.m) |
| Dry tensile strength (Machine direction) | 1740 lbs/ft (25.4 kN/m) |
| Dry tensile strength (cross direction) | 1176 lbs/ft (17.2 kN/m) |
| Wet tensile strength (Machine direction) | 1488 lbs/ft (21.7 kN/m) |
| Wet tensile strength (Cross direction) | 1032 lbs/ft (15.1 kN/m) |
| Elongation at failure Wet (Machine direction) | 38% |
| Elongation at failure Wet (Cross direction) | 25% |
| Open area | 48% |
| Thickness | 0.35 in (9 mm) |
| Minimum Twine Count [MD x CD (per foot)] | 27 x 18 |
| Recommended slope | > 1:1 |
| Recommended flow | 12 fps (3.7 m/s) |
| Recommended shear stress | 4.5 lbs/sq.ft (215 N/sq.m) |
