11/12/2020
Recommendations for Improvement of Roads in Black Cotton (BC) Soil Areas
Are you experiencing any of the following problems with your Black Cotton Soil roads in remote areas?
1. New road constructions, drainage layer in the form of Granular Sub Base with crushed aggregates, up to the formation edge.
2. Base widths shall be more than BT surfacing width by 150mm to 200mm on either side to prevent accumulation of water below BT surfacing and to protect BT edges.
3. Multi layer base constructions shall be restricted to places where required machinery is not available.
4. Use of natural gravel, which is highly plastic, shall not be allowed in sub base or base layers.
5. Earthwork excavations near the toe of formation shall be prohibited.
6. Shoulder and sub grade are the most neglected items in the road construction. Equal importance shall be given to these items as specified in the above mentioned clause.
7. For recently done roads, drainage chutes 300mm×450mm with drainage material using HBG crushed aggregates confirming to type A grading of table 300-4 shall be provided from the bottom edge of sub base to the edge of formation. They shall be spaced at 25m on both sides.
8. Necessary steps shall be taken to prevent the unauthorized plying of iron wheeled vehicles and overloaded vehicles.
Solution: Composite Base Rig Mats – ACCESS SOLUTIONS
Redeployable Access Solutions – www.compositebaserigmats.com see SOLUTIONS
Mainly constructing roads and accesses ways are made from backfill gravel/sand. Constructing in such a way you require for certain time man and machine power. Traditional way to construct 1km of temporary road here in Africa will take 14 day (depend also from ground configuration). With our Pro Road system you build up access road in just 1 day only with group of 8 workers who makes assembly. No need for forklift or crane operator plus driver. Up to 10, 000m2 a day or 2km x 5m wide road, once orientation and training has been provided. First benefit is speeding up your projects. It does not matter if you in rainy season or bad weather (we do not recommend too windy) you can lay our Pro Road system. Mats will perform also in tidal and swampy areas. Second benefit is independent from weather. Most important aspect when using our ground system lies in reusability/redeployability. The more you move mats from project to project the better return of investment . Third benefit is reusability for many years. With lifetime expectancy of 12 or more years Pro Road products will give you also fourth economic benefit. Fifth benefit is improved SAFETY. Patented traction technology for water, dry & oily conditions will allow grip for your steel or wheels working machines. Our Pro Road mat have load compression capacity up to 825 psi or 580 ton/m2 and can support load in access of 600 tons (depend on ground conditions).
Mats connected together form a stable, non-shifting platform on which you or your people or machines can move safely. They are light to manipulate. On one 7 ton Flatbed truck, with a load body of 5m long x 2m wide you can load 600m2 Pro Road matting
Pro Road mats can help to:
• Minimize transportation, construction and reclamation costs
• Improve construction site stability and safety
• Protect a site throughout the year in all types of weather
Pro Road are being used in, construction, heavy hull transportation, landscaping, Oil & Gas, transmission and event industry, we also offer a
Pro Pitch version for stadiums for forklifts, trucks and 600 ton crane trucks and Pro Aero for the aviation industry.
Pro Road - Portable & semi-permanent roadway- / shoulder matting solutions
Roll-out our specialised geo membrane and lay the Pro Road matting system
Pro Road mat sizes: 5m wides x 1m long
Load factor: 825 PSI or 580 tons /m2 – (tests available on request)
Mat weights: 60 kgs
Mat composition: extruded HDPE with floatable inserts/anchoring feet
Installation: manual labour foot pressure
Disassembly: manual labour T-bar
Interlocking system: Zip lock
Anchoring: T- anchors various lengths
Slip resistance: wet/dry/oily conditions – EU test passed
Speed rating: 10km/h
Construction/Installation time: 5m wide x 2 km per 8 hr day
Country of origin: South Africa
Province of manufacture: Gauteng
City: Johannesburg
https://www.youtube.com/watch?v=lZCygYdfC8E&t=41s mining trucks
https://www.youtube.com/watch?v=lqRdsJpItHc mining general access
https://www.youtube.com/watch?v=hM_ZgNzVKDw payloader and excavator
Testing of the smooth surface Pro BASE for use on mines as an alternative to bases made traditionally from concrete
