Slope stabilization


Because we are your reliable partner, we are poised to proffer unbeatable SOLUTIONS.
At Royal Technergy we believe that completing required tasks on time and within budget, we have become successful.

Technical know-how, no matter the project. Whether you are constructing a railway track-bed, gravel forestry track over soft soil, or resurfacing a multi-lane highway carrying many thousands of vehicles per day, we have the technical knowledge to improve rail track, road and asphalt pavement performance.

High performance with lowered costs. Road and rail construction materials are becoming expensive and scarcer and clients require a longer life for less money. Our leading range of pavement and ground stabilization products can help you to reduce maintenance requirements, material use and whole life costs; all whilst maintaining performance.

Our techniques and solutions. Our advanced road mesh grids can structurally reinforce the asphalt pavement, reducing rutting and increasing fatigue life. Glass fibre geogrids can stabilize and strengthen the pavement, preventing reflective cracking. Polymeric geogrids interlock with granular sub-grades to stiffen the track and road foundations improving performance.

Reducing costs and carbon-footprint. A common result of the use of these techniques is a reduction in the thickness of construction materials needed to maintain performance and fatigue life; not only a cost saving, but a reduction in the carbon-footprint of the solution.

State-of-the-art technology for bespoke solutions. We use state-of-the-art design software, featuring various design methodologies, to optimize the reinforcement and the required thickness of the pavement layers.

Because every project is different, we offer the widest range of products available for reinforcing asphalt and unbound layers, as well as drainage geocomposites to remove water from the track or pavement structure.


Asphalt Pavement Reinforcement

Increased strain on our roads. Our highways are experiencing unprecedented pressures; increased usage and reducing maintenance budgets.

Simple resurfacing is only a temporary fix. When flexible asphalt pavements are exposed to repeated cyclical loads, rutting, pothole formation and fatigue cracking can occur. With increasing vehicle use and axle loads, this problem may also get worse. Simply resurfacing a problem pavement will only temporarily improve the situation as cracks from the underlying layers soon propagate into the new overlay, causing premature ageing. This reflective cracking can also be a problem when asphalt overlays are placed on to existing concrete pavements.

Royal Technergy asphalt pavement reinforcement solutions are used to address highway problems:

– Reflective cracking
– Thermal and fatigue cracking
– Rutting and shoving
– Haunching failure
– High-axle loads
– Construction on peat soils
– Differential settlement
– Weak subgrades
– Reduced construction layer thickness

Reducing the whole life cost through effective reinforcement. The reinforcement of asphalt pavements can produce a threefold increase in the service life of highway pavements by reducing fatigue, reflective, thermal and settlement cracking. With increased fatigue life and extended maintenance intervals, the “whole life cost” of a reinforced pavement is less than an unreinforced one.

Reinforcement reduces road stress.Stress concentrations in the asphalt matrix are relieved and redistributed by the reinforcement, resulting in:
– Delayed initiation of cracks, slower crack growth
– Narrower crack width
– Wider spacing between cracks
– Deviation of cracks

Our products for new-builds and overlays. We offer a range of reinforcement products for bituminous paving. Whereas RoyalGrid™ RT45 glass fibre and polyester geogrids inhibit reflective cracking, Road Mesh additionally structurally reinforces the pavement. Road Mesh provides lateral restraint to the asphalt, which improves resistance to rutting and shoving. As it structurally reinforces pavements, Road Mesh can also be used in new-build roads, and not just overlays.

Effective solutions based on research and experience.We know our solutions function well based upon extensive research and development in cooperation with leading universities and research institutes, as well as practical project experience over many years. Our research has contributed to the development of our design software, which our engineers use to solve our clients roadway problems.

Sub-grade and Pavement


Removing water to increase performance. track or pavement structure can be weakened by water within, beneath or adjacent to it. Removing this water can improve track bed or road pavement performance.

Recognising different requirements. Performance requirements will be different for an unbound pavement in a monsoon region, from an asphalt pavement in an area susceptible to ground frost.

Modern solutions for track and roadside trench drains. Traditional roadside trench drains using gravel filters can now be replaced with the modern alternative of Royal Geocomposites. These geocomposite drains, reduce excavation, backfill material volume, and costs.
Selection of an appropriate drainage composite is dependent upon;
– The intended location within the pavement
– The materials it will be in contact with
– The drainage capacity required

Drains are typically adjacent to the highway, where rain water run off is collected in a linear ‘trench’ drain. Where groundwater is near the surface, a horizontal drainage layer, beneath the highway can remove potentially destabilising water from the road foundation layers.

Our cost-effective and technically superior solutions. Our range of drainage geocomposites provides a cost-effective and technically superior alternative to traditional granular drains. It introduces a free conduit for water flow, from the adjacent soils.

We aim is to optimise the solution. Geotextiles, or geomembranes, bonded to one or both sides of the core ensure filtration, separation and protection of the core. Simply, they stop the drainage core becoming clogged by soils. By combining different geotextiles with various types of drainage core materials, our aim is to identify the most appropriate product for the specific application, in order to optimise the technical and economic needs.

Tested and quality solutions to improve performance and reduce environmental impact. With lab-tested performance and quality controlled manufacturing, our solutions can replace traditional gravel drainage, offering faster projects, quantifiable performance and construction cost savings. Additionally, the reduction of gravel extraction and truck movements to and from the project site, serve to reduce the project’s environmental impact.

Sub-grad Improvement and Soil Stabilization


Issues surrounding unbound material-made roads and track beds. Sub-grades and access tracks made from unbound materials can suffer from a number of issues that prematurely age the road; including:
– Bearing capacity failure
– Differential settlement
– Rutting
– Access over wet/saturated ground
– Construction layer thickness
– Weak subgrades

These effects are apparent in many applications including railway track beds, forestry tracks, mine haul roads, construction sites and parking areas.

Geogrid reinforcement solutions to improve performance. Appropriately designed and installed reinforcement, placed within unbound granular layers improves the performance of the road or track bed, extending its life and increasing maintenance intervals. The geogrid reinforcement works in cooperation with the granular materials, helping them to perform better than they would do in an unreinforced state.

Two mechanisms work to increase the elastic modulus and bearing capacity, resulting in improved resistance to deformation and rutting.
– Lateral restraint to the aggregate particles
– Tensioned membrane effect
Improving performance while reducing thickness. In addition, reinforcement can reduce the layer thickness by a third and improve the performance of the subgrade.

Royal Technergy expertise can bring best-value solutions. Using our design software we can optimise the relationship between geogrid (or geotextile) reinforcement and sub-grade thickness to create best-value solutions.

We are your reliable partner.