Road Construction

Pavement Layers

Introducing GE-NANO

Our Nano-Technology based product Ge-Nano enables the use of traditionally available stabilizing agents such as bitumen emulsions at much lower application rates, achieving improved strength characteristics and more water resistant layers in roads at lower unit costs. Our nano-technology based product has eliminated the use of cement completely.

Constructing Pavements using NANO-TECHNOLOGY

A stronger pavement or a pavement constructed using predominantly locally available materials would allow for optimization of pavement layer design. This development in road construction involving the use of NANO-TECHNOLOGY, is a game-changer that will dramatically improve the provision of roads at an affordable unit cost.

Making Pavement Layers STRONGER

By using GE-NANO in your pavement construction process, you will be giving your pavement a STRONG sub-base that will help the pavement to hold up to traffic, erosion and weather. Engineers should always be striving to meet budget constraints without compromising on quality and pavement performance, GE-NANO is the product to make sure you provide a high quality pavement layer at a cost that you will be happy with.

Tailoring a Solution for YOUR NEEDS

Some soils cannot be economically stabilised using conventional stabilising materials, or could present problems resulting in severe premature distress on roads at considerable cost. Typical “problem soils” include materials containing:

  • High percentages of mica and/or smectite minerals.
  • Sands containing high percentages of crushed sea shells or coral.
  • Cohesion-less sands.

Identifying the basic composition of generally available materials and of “problem soils” along with laboratory testing with our nano-technology stabilising products will lead to selecting the most appropriate and cost-effective stabilising agent to improve the characteristics of these materials for use in the upper road pavement layers. Note that GE-NANO would have its key ingredient composition adjusted to suit the soil being stabilised. This adjustment would be done as part of the design process.

Such an approach would lower the risk to both the designer and the road authority and lead to the cost-effective use of generally available materials in the upper layers of the pavement structure, especially for the design of lower category roads.

Material Mixing
Mixed Material
Pavement Construction Machinery
  • No thermal or stabilization cracks are introduced into the pavement layer.
  • GE-NANO, within the pavement layer has more flexibility than that of a cement or lime treated pavement layer.
  • Dosage rate is between 0.5% to 2% of the MDD of the material.
  • The inclusion of GE-NANO typically improves the compactibility due to the adhesion improvement of the mortar of the material.
  • The use of GE-NANO in bypasses reduces the high cost of construction of deviations.
  • Since GE-NANO is dispersed amoungst the finer aggregate particles, the fines are encapsulated and immobilized causing a reduction in 'pumping'.
  • GE-NANO improves the moisture sensitivity and durability of the treated materials. This extends the life of the layer by reducing the exposure to weathering.
  • GE-NANO is used with a wide range of materials from G1 - G4 crushed aggregates to G5 - G8 natural gravels.
  • GE-NANO does not require heat for any material handling, storage or pumping.
  • GE-NANO is added to the compaction moisture at ambient temperatures.
  • Very short curing time after the layer work is completed.
  • Due to the reduced amount of GE-NANO used in a layer compared to the traditional emulsion treated layer, storage facilities can be reduced.
  • Lower dosage rates / m3 are required as compared to the traditional BSM's (bitumen emulsion and cement).

GE-NANO Product Brochure

GE-NANO Technical Sheet

Pavement Life Extender

Seal it with NANO-SIL

NANO-SIL is an affordable NANO-TECHNOLOGY organo-silane pavement seal, designed specifically to extend the life of new and older pavements. All pavements, even new pavements will have either pin holes, or some form of fatigue manifesting as surface cracks, which ultimately will be the cause of potholes or other pavement damage.


Our NANO-SIL ‘Pavement Life Extender’ will seal pavements with a clear, initially water soluble, breathable ‘Nano Organosilane and Nano Polymer mixture’ that seals the road surface, greatly reducing water permeability, while remaining breathable. The oxidation rate of the bitumen in the asphalt is therefore reduced, keeping the asphalt from becoming brittle and susceptible to fatigue cracking.

Breathability is paramount to future longevity of any pavement. Water that has permeated into the pavement is still able to evaporate in the form of vapor, but water particles or droplets cannot penetrate. Therefore the continual existing ‘Wet/Dry’ cycles experienced in current pavements is eliminated. The Asphalt, Chip Seal or Cape Seal surface as well as the base and sub base courses can now be protected from water ingress.

Effective pavement MAINTENANCE

Flexible pavements benefit from timeous maintenance interventions to prevent water ingress into the pavements layer, leading to accelerated pavement damage. NANO-SIL can be used as a cost effective maintenance treatment or holding action to seal and waterproof surface cracks, thereby extending the pavement life.

Parking lot construction
Grading the soil for sub-layer construction
Pavement Construction Machinery
  • Extends the life of any pavement reducing the ingress of surface moisture.
  • Reduces the frequency of road maintenance interventions.
  • Remains breathable, therefore allowing water within the pavement to escape in vapour form.
  • UV resistant and heat resistant.
  • Clear seal which will not blacken road markings, curbs, vegetation or other road features.
  • Water soluble - solution will follow the path of the diluted 'Water diluted spray' and seal on drying.
  • Spray run-offs protect road sidings or edges.
  • Does not reduce skid resistance.
  • Easily applied with water cart, knap-sack sprayers or similar.
  • No detours required.
  • Will seal and protect existing areas of road surface fatigue manifested in map cracks, surface aging and raveling, allowing more time to plan and budget for repairs.
  • Chemically converts water absorbing silanol groups to water resistant alki-siloxane surfaces at room temperature.
  • Si-O-Si bonds (as in sand) survice for centuries.
  • Non leachable, safe chemistry (*REACH and **TSCA registered).
  • Affordable.
  • Nano-Technology patented in 165 countries worldwide.
Dilution Rate:
1,5 parts Nano-Sil to 200 parts water.
Application Rate (of diluted solution):
1,0 l/sm
(0.0075 l/sm for the concentrate as supplied to site.)
Initial Treatment:
1 No. Application.
Maintenance Treatment:
1lt per m2 required per annum.
Method of Application:
Watering cans, knapsack sprayers, mobile water tankers with spray bars.

NANO-SIL Product Pamphlet

Prime & Bond Coats

Keeping it TOGETHER

This nano-polymer modified emulsion usually breaks in 15 to 30 minutes, making a very quick drying prime. The nano-size particles offer improved penetration of up to 8mm into the pavement bases, even dense crushed stone bases. This results in an excellent bond between the pavement surface and base. NANO-PRIME is applied at low emulsion spray rates and being water based, there are no emissions of volatiles.

  • Excellent spreading and deep penetration.
  • Waterproofs and eliminates moisture susceptibility.
  • Tack free surface within 15 - 30 minutes.
  • Zero volatile emissions.
Nano-Prime: Water
(< 1000 ppm TDS) Ratio
Cationic bitumen emulsion in kg
* Spray Rate Litres / m²
No. of Applications
Prime Coat
1kg : 200 litres
  • Start re-circulation of cationic bitumen emulsion.
  • Add water followed with NANO-PRIME, continue re-circulation for 10 - 15 mins.
  • Spray the mix.

NANO-PRIME should be stored between 5 - 45°C in a shaded, dry area away from sunlight, heat ignition, source of sparks, rain and standing water.

The container lid should be securely fastened every time it is used. Its shelf life is 24 months.

NANO-PRIME & NANO-TAK Product Pamphlet