This road stabilisation project was carried out by Dust-A-Side at Teberebie village in Ghana. The village road is a thoroughfare to the AngloGold Ashanti Iduapriem Ltd mine. The roadway carries a medium level of traffic consisting of taxis and LVDs to and from the mine.
The road required stabilisation and other repair work in order to provide villagers and mine vehicles with a safe passageway to travel on, free from dust and mud. Prior to the completion of this project, a lack of regular maintenance had left the road in a state of disrepair.
Additionally, as this village is located in a Western Africa tropical region, it receives high rainfalls of up to 260mm/month during the rainy season. This significant rainfall had eroded the surface of the village road and created numerous and dangerous potholes. There was also a lack of proper water channelling and drainage, meaning the road became too dangerous to drive on whenever it was embedded by too much water after these heavy rainfalls.
The first step in stabilising the road surface was to fix the defects and dress the road with proper wearing coarse and then apply Dust-A-Side product.
Dust-A-Side Product is a Bitumen based emulsion milled to micron bitumen particles emulsified in a saponified solution. This product is specially designed for use for rural and national roads construction including stabilisation of access and mine haul roads.
Implementing a comprehensive program of wearing course stabilisation with bitumen emulsion on the village road has helped to dramatically reduce excessive water and mud accumulation during rainy days. This also contributed to dust control and has reduced the need for constant grading to eliminate/ fix road defects such as rutting, corrugation, loose stones and related defects
The village roadway stabilisation project was carried out in the following phases.
Treatment of the access road with a footprint measured as follows:
Covered the Main Access road with a footprint measuring:
The materials stabilised with DAS Product included granular materials and or soils of specific classification.
G6 or poorer quality, do not yield desirable performance when stabilised with bitumen emulsion. Clayey material falling outside the desirable bracket needs to be modified as indicated in the images below.
DASProduct can work with a wide range of soils; however, they need to be tested in the lab first to determine the appropriate and suitable mixture soil/gravel classification tests prior to stabilisation.
The community is happy with the performance of the roadway stabilised with Dust-A-Side Product both in wet and dry conditions.
With our wealth of experience in stabilisation and maintenance of such roadways, our team took into consideration the need for proper water channeling and drainage. This has ensured that the material is properly coated and sealed, making the road safe to drive during rainy seasons.
To prevent DASProduct stabilised roads from decaying over time and to continue to provide the villagers with safe to drive on roads, maintenance is scheduled and implemented as and when the need arises.
The images below demonstrates how defects such as potholes are repaired including sections that needs regrading and rejuvenation of the binder to improve on waterproofing capabilities
Maintenance frequency is dependent on traffic volume and intensity. The higher the traffic volume (>10 vehicles/hour) ,the more maintenance would be required.
Blending the in-situ wearing course with good road building aggregates or soils will reduce maintenance frequencies as the road base is protected by bitumen seal which provides exceptional waterproofing properties
Dust-A-Side is the world leader in providing holistic haul road management and dust control solutions to the mining industry.
For a free obligation quote, feel free to contact our commercial team for technical consultation complete with preliminary report.
At no charge to you, a technical expert from Dust-A-Side will:
Following the consultation, our engineer will prepare a preliminary report, detailing recommendations and solutions to meet your needs as well as proposed next steps.
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