Projects
TRIAL OF ARU — ARIWARA IN ARU TERRITORY — ITURI PROVINCE
(Construction site owned by Petrocity Sarl)
In October 2024, we conducted a successful trial of the QH TerraBond soil stabilizer, focusing on its water-proofing capabilities and dust control properties at Aru-Ariwara in the Aru Territory of the Democratic Republic of Congo. This trial aimed to evaluate the effectiveness of QH TerraBond in enhancing the performance of unpaved roads under varying weather conditions.
The trial involved applying the QH TerraBond stabilizer to a designated stretch of road in the region, known for its challenging environmental conditions, including heavy rainfall.
By utilizing this innovative solution, we sought to demonstrate how QH TerraBond can improve road durability, minimize erosion, and provide a dust-free environment for local communities.
Preliminary results from the trial indicated that the QH TerraBond treatment significantly reduced water infiltration, thereby enhancing the road’s overall stability and longevity.
MBWEKAS-MAYONI- EKERO B13 ROAD
1. Project Overview: This contract was awarded to us by the Kenya National Highways Authority which involved the maintenance of the Mbwekas-Mayoni-Ekero B13 Road, ensuring its structural integrity, safety and overall functionality. The project covered various essential components of road maintenance, including earthquakes, drainage, bituminous works and pavement repairs under a performance-based contract (PBC) model.
2. Scope of Work: The following maintenance activities were carried out along the Mbwekas-Myoni-Ekero B13 Road:
Earthworks: Earthworks involved the excavation and filling of structures to support road stability.
These operations included grading, shaping and compacting road surfaces, alongside improving embankments to maintain optimal road structure
Excavation and Filling for Structures: Proper excavation and backfilling were undertaken to ensure a stable foundation for culverts, bridges and other structural components. This process was closely monitored to ensure compliance with engineering standards for long-term durability.
Culverts and Drainage Works: Maintenance and rehabilitation of existing culverts and drainage systems were prioritized to ensure efficient water flow and prevent flooding or waterlogging. This included cleaning, de-silting and repairing damaged sections to maintain road usability during all weather conditions.
Bituminous Works: This phase involved the application of bituminous materials for surface protection and repair.
Activities included sealing cracks, repairing potholes and resurfacing damaged sections to extend the lifespan of the road while providing a smoother driving experience.
Shoulder Works: Proper maintenance of the road shoulders was conducted to ensure safe and stable edges for vehicle runoff andsupport drainage. Grading and compacting operations were performed to prevent erosion and shoulder wear.
Base and Subbase Repairs: In-depth repairs of the base and subbase layers were done to correct any structural weakness ensuring the road remained stable under traffic load. This involved excavating weak areas and replacing them with appropriate material to restore strength and prevent future subsidence.
Road Furniture Maintenance: Road signs, guardrails and other essential road furniture were repaired and maintained for proper visibility and safety. This work ensured the road was navigable and safe for users, adhering to safety standards.
Pavement Repairs: The pavement was regularly inspected for wear and tear, with repairs made to ensure a smooth driving surface. This included patching, cracking, sealing and resurfacing all aimed at minimizing deterioration and extending the lifespan of the road.
3. Performance-Based Contract (PBC): Under the Performance-Based Contract approach, payment was tied to the achievement of specific performance criteria rather than the quantity of work completed. This ensured that the contractor remained accountable for maintaining road standards over time. Key Performance Indicators (KPIs) were developed to assess the quality of the road, including ride quality, safety features and drainage efficiency.
Contract performance was measured by:
The overall condition of the road surface (smoothness, absence of potholes, cracks etc).
The efficiency of drainage systems (water flow, absence of flooding)
The functionality and visibility of road furniture (signage, guardrails).
Proper and timely completion of all scheduled maintenance tasks.
Road maintenance
Webuye-Kitale Road (A1) Road
The maintenance of the Webuye-Kitale Road (A1) focused on enhancing safety, durability, and smooth travel for all road users. The project included surface repairs, drainage improvements, and regular upkeep to ensure a reliable and efficient roadway that connected communities and supported economic activity across the region.
- Completed essential surface repairs to ensure smooth, safe travel.
- Improved drainage systems for better road conditions.
- Supported regional connectivity and economic activity.
Construction
Gatura-Ndakaini E506 Road
The construction of the low-volume seal on Gatura-Ndakaini E506 Road focused on creating a durable and cost-effective roadway suitable for lower traffic volumes. This project enhanced local accessibility, improved safety, and supported regional development by providing a reliable route that met the community’s transportation needs.
Upgrading road
Chuka Town Road
The upgrade of Chuka Town Road focused on improving road quality, easing traffic flow, and enhancing safety for residents and visitors. This project boosted local accessibility and supported economic growth by providing a smoother, more efficient roadway through the heart of Chuka.