GLOBAL STANDARDS. AFRICAN EXECUTION.
SANS 1580 Compliant | Hexagonal Woven Mesh | Class A Galvanised
Premium Galvanized , and PVC Coated River Reno Mattresses for Africa’s Toughest Hydraulic Projects
Geosynthetics Africa is the preferred supplier for high-performance River Reno Mattresses across South Africa and the continent. Engineered for superior erosion control and riverbank stabilization, our bulk stock ensures rapid dispatch to site, keeping your civil engineering projects on schedule and under budget.
While traditional options like rip-rap fail under high shear stress, our PVC Coated River Reno Mattresses provide a monolithic, flexible structure that grows stronger over time. Manufactured from double-twisted hexagonal woven steel wire mesh (6×8 type), our mattresses are specifically designed to withstand the hydraulic forces of African river systems.
SANS 1580:2010 Certified: Fully compliant with South African National Standards for hexagonal steel wire mesh.
Double-Diaphragm Stability: Our units feature internal diaphragms at 1m intervals, formed by a double-mesh fold in the base for maximum rock-fill confinement.
Advanced Corrosion Resistance: Available in Class A Galvanised or with a 0.5mm UV-stabilized PVC coating for aggressive, acidic, or saline environments.
Typical Applications
River & Streambank Protection
Used extensively for stabilising riverbanks exposed to fluctuating flows, flood events, and seasonal velocity changes.
Channel & Canal Lining
Ideal for irrigation canals, stormwater channels, and lined waterways where controlled flow and erosion resistance are critical.
Culvert, Bridge & Outfall Protection
Installed downstream and upstream of culverts, bridges, and discharge points to prevent scour and structural undermining.
Spillways & Energy Dissipation Zones
Provides flexible protection at dam spillways and overflow channels where turbulence and uplift forces are high.
Flood Mitigation & Erosion Control Works
Used in flood-prone zones to reinforce riverbeds and embankments without obstructing natural flow.
Why Engineers Specify River Reno Mattresses
✔ Flexible system adapts to settlement and ground movement
✔ Permeable structure reduces uplift pressure
✔ Long service life in wet and aggressive environments
✔ Faster and more economical than mass concrete works
✔ Environmentally compatible with natural waterways
Materials & Construction
Geosynthetics Africa River Reno Mattresses are manufactured using:
Double-twisted woven steel wire mesh
Heavily galvanised or PVC-coated wire for corrosion resistance
Internal diaphragms to control stone movement
Standard thicknesses: 200 mm, 230 mm, 300 mm
Custom sizes available for project-specific requirements
All mattresses are supplied flat-packed for efficient transport and rapid on-site installation.
River Reno Mattress – Key Technical Specifications
(Woven Mesh Scour Protection System)
| Parameter | Specification | Notes |
|---|---|---|
| Mattress Type | Double-twisted woven mesh Reno mattress | Flexible & permeable |
| Mesh Aperture | 60 × 80 mm | Standard for Reno mattresses |
| Mesh Wire Diameter | 2.2 mm | Mattress body |
| Selvedge Wire Diameter | 3.0 – 3.4 mm | Edge reinforcement |
| Steel Tensile Strength | 350 – 575 MPa | Mild tensile steel |
| Zinc Coating | ≥ 275 g/m² | Class A galvanised |
| Optional Coating | PVC-coated galvanised | Aggressive environments |
| Mattress Thickness | 200 / 230 / 300 mm | Hydraulic selection |
| Standard Width | 2.0 m | Typical river applications |
| Standard Lengths | 3.0 – 6.0 m | Custom lengths available |
| Diaphragm Spacing | ≤ 1.0 m | Controls stone migration |
| Supplied Form | Flat-packed | Efficient transport |
| Installation | Over geotextile filter | Prevents soil loss |
| Permeability | Fully permeable | Reduces uplift |
| Typical Use | Rivers, channels, spillways | Scour protection |
| Design Life | 25+ years | Environment dependent |
| Compliance | SANS / EN aligned | Project specification |