Mams Mall, 2016


As part of the subgrade stabilisation to allow for construction of the area’s new shopping mall, bidim A2 was installed as a separation layer. The bidim used in this project was produced using 101 081 recycled cooldrink bottles.

Kalagadi Manganese Mine, 2016


The waste water containment dam’s HDPE liner, is protected by bidim A6 for its thickness, high strength resistance to protrusion, and long term creep. The bidim used in this project was produced using over 1.5 million recycled cooldrink bottles.

N2 Bramlin Interchange to Soutwerke, 2016


Rehabilitation of the road pavement layers was undertaken and insufficient drainage issues solved using bidim A2 and A6. The bidim in this project used the equivalent of 201 318 recycled cooldrink bottles.

Groblersdal Mall, 2016


The new mall was planned for construction on low bearing soils. bidim A2 was used as a separation layer to the sub grade stabilisation geogrid. The bidim in this project used the equivalent of 24 810 recycled cooldrink bottles.

Loftus Parking Basement, 2016


Adding multiple levels of parking to alleviate congestion, will see plenty of room for rugby supporters in future. The water table needed to be lowered for the basement layer where bidim was used in drainage trenches and as a separation layer between the in situ and aggregate at the base of the surface bed. The […]

Witfontein, 2016


Unsuitable in situ material at the site of this access road – due to a high water table – was excavated and infilled with dump rock. The high strength of bidim A8 and its filtration properties, ensured adequate adequate movement of underground water away from site. The bidim in this project used the equivalent of […]

R75 Uitenhage, 2015


This trapezoidal drain constructed at the top of a retaining structure to assist with the catchment of water whilst directing the flow away from the slope.

Moria Park Limpopo, 2015


A cutting almost always creates a problem with water that seeps into the layer works of the road.  A cut-off trench was dug around the foot of the hill to accommodate for a sub-soil drainage system consisting of bidim A4, 110mm drainage pipes and 19mm stone. This drainage system prevents water running into the layer works […]

Moving bidim into the future


We’re excited about what’s happening with bidim. Just a few of the faces behind the scenes who bring bidim to you.

Waterfall Equestrian Estate, 2014


The owner of the property in this residential development had a rooftop garden installed as part of the integrated ecology and sustainability plan for his home. Here, bidim A4 provided protection to the waterproofing layer. The bidim in this project used the equivalent of 1 081 recycled cooldrink bottles.

Seisa Ramabodu Stadium, 2014


Home of the Bloemfontein Celtics, this stadium field’s parallel drainage system uses bidim A5. The bidim in this project used the equivalent of 80 081 recycled cooldrink bottles.

Waterval Landfill, 2014


In this rubble pit, the vertical face of the quarry posed a potential safety risk. A stable slope was created using geogrids for reinforcement and bidim A6 to retain the soil in a wrap around wall system. The bidim used in this project was produced using 274 054 recycled cooldrink bottles.

Silver Lakes Pretoria, 2014


In sports field drainage, a subsoil drain was installed around the perimeter of the field using pipe and bidim A4. The bidim in this project used the equivalent of 3 978 recycled cooldrink bottles.

Bronberg Ext 7, 2014


bidim A2 was placed as a separation layer under the mechanically stabilising geogrid. The bidim in this project used the equivalent of 18 378 recycled cooldrink bottles.

Quoin Rock Stellenbosch, 2014


To protect against erosion and wave action, bidim A8 was placed underneath the rip rap. The bidim used in this project was produced using over 707 000 recycled cooldrink bottles.

N4 Kaapmuiden, 2014


This section of road constructed in a valley, has been vulnerable to ground water and consequent damage. Precast concrete cantilever walls were used to retain the imported material for the widening of the road. bidim was installed as a filter fabric over the entire wall area.

N1 Pienaarsrivier, 2014


The median of the highway lies well below the surface level of the fast lanes in both directions and large volumes of water build up in the median and filter into the layer works on both sides, degrading the base which eventually causes cracking and rutting. Installed subsoil drains using bidim A4 in the median, […]

Roma to Semonkong Lesotho, 2014


The Flo-Drain system comprises pipe, bidim (A2) filtration, and a geotextile net.  It was installed as roadside drainage along this 2.5km section.

Greyville Racecourse, 2014


bidim A2 as a drainage layer along the track enhances the performance of the track to world-class standards. The bidim used in this project was produced using 179 189 recycled cooldrink bottles.

Menlyn Maine Mall, 2014


A drainage layer was installed under the floors comprising bidim A2, fine stone, and a plastic layer. Concrete was then cast over this layer. For the basement walls, ZipCore was installed with a toe drain consisting of bidim and drainage pipes. The bidim used in this project was produced using 175 421 recycled cooldrink bottles.

Van Dyksdrift Rd, Middelburg, 2013


Subsoil drainage was installed in deeper-than-standard trenches to eliminate the risk of water ingress into the layer works in this low lying area. The bidim used in this project was produced using over 98 800 recycled cooldrink bottles.

Tormin Mine, 2013


New waste water ponds were constructed using bidim A4 and A6 as liner protection.  These grades offered optimum thickness in their weight class thus offering excellent protection of the HDPE liners used in the lining of these ponds. The bidim used in this project was produced using over 101 300 recycled cooldrink bottles.

Promosa Landfill, 2013


Constructed over a clay liner, a drainage system using bidim A5 at its base, provided filtration and separation for the removal of leachate. The bidim used in this project was produced using 42 972 recycled cooldrink bottles.

Olivedale Retirement Village Randburg, 2013


To prevent the possible build-up of hydrostatic pressure behind the concrete block retaining wall, a blanket drain was constructed consisting of a layer of bidim A2 covered with a 120mm layer of 19mm stone followed by a second layer of bidim A2.

N5 Harrismith to Kestell, 2013


Severe deterioration of the N5 between Harrismith and Kestell meant rehabilitation was essential. Adequate drainage of base layers can extend the life of the new road and so subsoil drainage alongside the constructed road was critical to ensure the water table was drawn down below the layer works. The bidim used in this project was […]

N1 Wurasoord, 2013


Rehabilitation of this section of road, necessitated the need for subsoil drainage using bidim A4 at the hill cuttings. The bidim used in this project was produced using 106 670 recycled cooldrink bottles.

N1 Ventersburg, 2013


Dropping the road level at this off-ramp for noise and safety reasons meant that ground water levels had to be adjusted for.  A 400mm x 400mm conventional stone drain wrapped in bidim A4 was installed on both sides of the new proposed road as well as the on and off ramps to the town.

Annlin Reservoir, 2013


bidim A4 provides filtration and separation functions wrapped around slotted pipes which form part of a leak detection system. The bidim used in this project was produced using 6 589 recycled cooldrink bottles.

Knots Dump, Swaziland, 2012


bidim A0 was laid as the drainage separator between the liner installer’s filtration system and bidim A8 for the protection layer to their HDPE liner. The bidim used in this project was produced using 1 169 350 recycled cooldrink bottles.  

Kusile Power Station, 2012


At the end of a 27km pipeline from Kendal Power Station, is the raw water dam which uses bidim A10 as HDPE liner protection. The bidim in this project used the equivalent of 2 810 810 recycled cooldrink bottles.  

Usazasa Rd, Cape Town, 2012


As part of the Cape Town BRT programme, a box cut was excavated in this section. The bidim A4 installed acts as a separator preventing contamination of the selected layers and the clay.

Transnet Ermelo, 2012


The construction of two new Transnet railway lines adjacent to an existing line encountered subsoil drainage problems and space limitations. A blanket drain with a lateral fin drain were specified instead of a sand blanket drain.  The latter proved problematic as the sand layer was easily contaminated by the fill and the thickness was difficult to […]

Sylvania Metals Tailings Facility, Marikana, 2012


A completely synthetic filter drain system using bidim A6 was specified for this tailings facility as opposed to the traditional sand and stone design and afforded the client significant cost- and time-savings. The bidim used in this project was produced using 18 888 recycled cooldrink bottles.

Moreleta Park Pretoria, 2012


Where a new pipeline would have to traverse wetlands, the trenches were dug far larger than the diameter of the pipes, lined with bidim A6 followed by a thick layer of 19mm stone placed at the base.  The thicker grade bidim would assist in carrying the load of the pipes, forming a reinforced base, and its high […]

N12 Daveyton, 2012


A bidim A4 blanket drain was installed between the backfill layers.

Sunday River Bridge 2011


In order to carry out repairs on the bridge, a temporary construction platform was created with dune sand.  With the velocity of the water, the sand was kept in place using glazed geocontainers of bidim A6 and the platforms supported the entire 17 month construction.

Polokwane Ring Road, 2011


bidim A4 provided filtration necessary behind the gabions at the culverts of the new ring road. The bidim used in this project was produced using 49 729 recycled cooldrink bottles.

Chota Motala Rd Pietermaritzburg, 2011


In a separation function, bidim A7 was used between pavement layers.

ArcelorMittal Vanderbijlpark, 2011


bidim A4 was laid below and over the HDPE layer as liner protection of the capping of this waste facility.  It was also used as part of a riprap system in the storm water drainage canals.

Durban Harbour Widening, 2010


bidim A10 was supplied as erosion protection of the new earth embankment and as a separation layer between the earth embankment and the stone faced armoring that was installed around this earth embankment.

St Albans College, 2010


In an unusual application, bidim was laid over the Bulli (clay) cricket pitch and rolled over with a roller.  While the grass was compacted into the Bulli, the pitch was sealed, and the water drawn up and through the bidim layer.  Allowed to dry, the pitch was then re-compacted with the roller.

Athlone Cooling Towers, 2010


In an unusual application, bidim A10 was used as a “blasting curtain” during the demolition of these decommissioned towers.

Yacht Mole Durban, 2009


Building a hotel at the yacht mole posed a challenge for laying foundations until bidim A10 was used to separate the in-situ soil from the dump rock.

Chloorkop Landfill, 2009


bidim A4 and A5 were used in the toe drains, edge drains and as filtration behind gabions during the capping of this facility.

Rhovan Mine, 2008


bidim A6 functions as liner protection in the purge water dam.

Matimba Power Station, 2007


bidim A6 was used as liner protection and filtration in the storm water collection dam.

Karee Platinum Mine, 2007


As part of the tailings dams, bidim A4 is used to allow water to drain out and be recycled.

Beatrix Mine, 2006


The tailings dams facility at this mine used bidim A4 beneath the graded natural filter layer in a filtration and separation function.

Costwold Downs Hillcrest, 2005


bidim A3 was installed as a separator to prevent mixing of the in-situ soil and the imported clear, white silica bunker sand.

Richards Bay Regional Landfill, 2003


bidim A10 serves as liner protection to the HDPE layer.

N3 Heidelberg, 2003


bidim U24 used for subsoil drainage in the Harrismith vicinity.

Durban Harbour T Jetty, 2003


A bidim A6 sock barrier was used between the caissons to prevent leakage of the sand fill behind the caissons from leaching out of the reclaimed area and into the harbour

Edwin Swales VC Drive, 2003


bidim A6 was used to construct a temporary vertical wrap-around retaining wall within the median of this high traffic road. The wall measured 400m long x 1.8m high at the highest point and lasted the full year during widening of the road.

Langebaan Lagoon, 2002


bidim® A6 exhibits such properties to maintain the integrity of the breakwater berm in such harsh, dynamic flow conditions pertaining to the site

Umhlanga Rocks, 2002


A system of 12 Geo Steps of bidim A4 wrap-around check weirs were constructed to halt further stormwater erosion leading up to the land development programme.

Unilever Building, Umhlanga Ridge 2001


The 500mm wide WickDrain feeds vertically into a collector drain behind the basement section of the building.

Bronkhorstspruit Temple, 2000


bidim A2 used as part of a vertical drain behind a basement wall.

Mariannhill Landfill, 1999


bidim U24 was used as a separation layer between the compacted clay layer and the stone drainage layer in the base of the cell.

Umhlanga Rocks Drive, 1999


The wrap around reinforced embankment withstood even the torrential rains of October 1999.

Booth Road Canal Durban, 1999


bidim placed below the reno mattresses prevents scour and does not allow the build up of excessive pore water pressure.

Summerveld Equestrian Track, 1999


When water wasn’t draining off the synthetic section of the track, subsoil drains were installed using bidim as filtration.

Gordons Bay, 1999


Almost the entire 20km section upgraded had new subsoil drains installed.  Strict environmental controls were in place requiring labour intensive methods be used. bidim was used to line the french drains and also as a filter fabric behind all the gabions.

Kokstad Prison, 1998


The blanket drain installed using bidim U34 drains into a conventional sub-soil drain running almost the entire length of the site.

Mariannhill Landfill, cca. 1998


bidim was installed as liner protection to phase 1 of the landfill project.

Majuba, 1995


bidim A2 in this rail link subsoil drain.

Ellis Park Athletics Stadium, 1993


A bidim blanket drain was laid in this sports field application.

Phokeng Stadium, 1992


Blanket drain for this sports field application.

Bergendal, 1984


A bidim U44 wrap around wall was erected to stop elephant invasion of the camp.

Mokolo Dam, 1979


This 57m high rockfill embankment dam uses bidim A8 as an adjunct to the clay core protection filter. Download the case history of this enduring rockfill dam.

Bisasar Road Landfill, 1978


A bidim blanket drain is laid beneath the landfill.

Gonubie, 1976


Roadside subsoil drainage.

M13 Pinetown, 1973


Using bidim as separation to aid compaction.

North Beach Durban, 1971


Proving bidim’s separation capabilities.