Galvanised Woven Gabion Baskets

Galvanised woven gabion baskets are the most cost-effective mass gravity retaining wall solution for road embankments, cutting stabilisation, mine waste containment, railway embankments, and terraced slope retention across Africa where local rock is available. The flexible double-twist mesh structure accommodates differential settlement without cracking, the permeable rock fill eliminates hydrostatic pressure buildup, and the gravity mass of rock-filled baskets provides inherent stability without engineered concrete foundations. For walls exceeding 4m in backfill situations, the Gab-Tail reinforced gabion soil system is more economical than a mass gravity wall.

Galvanised and PVC coated woven gabion baskets are the standard specification for longitudinal river bank protection, river diversion structures, gabion weirs, low-level and Irish crossings, and culvert inlet and outlet protection across southern and East Africa. The permeable structure allows groundwater equalisation with river levels, preventing uplift under flood conditions. PVC coated gabions are specified for permanently submerged structures and chemically aggressive river environments including acid mine drainage discharge zones

Galvanised woven gabion baskets are widely used on mine sites for primary crush tip containment walls, mine waste dump toe bunds, haul road cut retaining structures, portal protection walls, and longitudinal drainage structures. The ability to fill with locally available rock, install with unskilled labour, and construct without concrete plant makes gabion structures particularly practical on remote mine sites where logistics and construction resources are constrained. PVC coated gabions are specified for structures exposed to acid mine drainage and chemically aggressive leachate.

Gabion baskets and woven mesh mattresses provide flexible, permeable protection for dam embankment faces, spillway aprons, and stepped spillway structures where conventional concrete lining would crack under embankment settlement or thermal movement. The rock-filled gabion structure absorbs hydraulic energy, conforms to the embankment profile, and accommodates post-construction settlement without structural failure. Gabion stepped spillways are a cost-effective alternative to mass concrete chutes on small to medium dams across sub-Saharan Africa.

Hexagonal woven mesh in roll form is specified for rockfall mesh netting on steep rock slopes where loose and fractured rock presents a safety risk to roads, infrastructure, and personnel below. The high-strength woven mesh is anchored securely to the rock face using steel dowels and holds loosened rock material in place against the slope face. Available in Class A Galvanised and PVC coated. Roll format 2m wide x 50m long allows efficient coverage of large slope areas with minimal joints.

Class A Galvanised hexagonal woven double-twist mesh gabion baskets for retaining walls, river training structures, mine primary crush tip walls, dam embankment protection, channel lining, culvert inlet and outlet protection, and bridge abutment protection. Mesh aperture 80x100mm, mesh wire 2.7mm, salvage wire 3.4mm, binding wire 2.2mm. Tensile strength 350-575 MPa to SANS 675. Standard sizes 1x1x0.5m to 4x1x1m. Design life 25-50 years in non-corrosive environments. The standard specification for civil and mining gabion structures across southern and East Africa.

PVC coated hexagonal woven double-twist mesh gabion baskets for permanently submerged structures, marine and coastal environments, acid mine drainage zones, and chemically aggressive soils where standard galvanised wire would corrode prematurely. 0.5mm grey PVC coating applied over Class A Galvanised wire core - providing dual-layer corrosion protection. Same mesh aperture, wire diameters, and standard sizes as the galvanised range. Specify PVC coated where the structure is within 5km of the coast, permanently submerged, or exposed to acid mine drainage, effluent, or chemically contaminated groundwater.

For retaining walls exceeding 4m in height built in a backfill situation, the Gab-Tail reinforced gabion soil system is more economical and faster to construct than a mass gravity gabion wall. External gabion basket facing units provide the structural front face while hexagonal woven mesh tails extend horizontally back into the compacted backfill, improving lateral shear resistance and tensile strength of the retained soil. Backfill must be G6 or G7 grading with no particles exceeding 100-150mm, compacted in layers not exceeding 150mm at 95% Modified AASHTO. Available in galvanised or PVC coated mesh. Design assistance provided on request.

Hexagonal woven mesh supplied in roll form for rockfall mesh netting on steep rock slopes and for covering large areas of river mattresses where individual mattress lids are impractical during installation. Available in 80x100mm aperture with 2.7mm wire and 60x80mm aperture with 2.2mm wire. Roll size 2m wide x 50m long (100m2) or 2m x 100m. Class A Galvanised or PVC coated. Supplied with 3.4mm salvage wire along roll edges and 2.2mm binding wire. Steel dowels available for anchorage into rock slopes on request.