The time it takes to build a GRT road is significantly less than a conventional road. Saving considerable materials, money and water a skilled crew can lay between 6,000 to 10,000 sq. metres of road per day.
GRT products are applied quickly with roads operational within hours. Reducing traffic disruption, GRT roads are ready to use within days of initial planning.
GRT roads are robust, resilient and flexible. Just as strong in wet, dry, hot and cold conditions, they accommodate movement, moisture and temperature that crack pavements stabilised with traditional methods. A GRT treated pavement offers designers with unique engineering properties that can yield a 70% reduction in overall pavement depth compared to untreated materials. UCS values of greater than 6 Mpa normally only considered in ridged pavement design can have greater utilisation due to tensile strengths of up to 25% of compressive strength. Resilient module’s values of >5000 MPa, akin to deep-lift asphalt enable flexible pavement design principles to be adopted.
GRT roads present both short and long-term cost benefits. Lowering application and labour costs, they promote longevity and lower maintenance expenses.
Incorporating in-situ materials, GRT roads do not require external materials such as newly quarried road bases or manufactured products such as asphalt or concrete significantly reducing transportation and material costs.
During application, GRT treated in-situ roads and hardstands require only a stabiliser, water truck, grader and roller. This simplified process negates the need for other pieces of equipment such as; powder tankers, spreader trucks and tip trucks.
GRT treated roads require less maintenance which saves on machinery purchase, hire and maintenance, as well as overall running costs such as fuel and tyres.
Construction procedures are simplified with GRT’s innovative range of polymer products. GRT products can be mixed with salt or fresh water and applied using only a water truck, grader and roller, where sophisticated stabilising machines are not available. For maintenance activities such as fixing potholes, all that’s required is a shovel, wheelbarrow, and polymer product. Given the simplified application processes, low-skilled labour can be utilised – essential in rural communities where expert road construction crews are not always readily accessible.
GRT’s range of polymer products has been independently verified as environmentally friendly by ERM. Significantly reducing the water used for dust suppression and road maintenance, they present a low carbon footprint option.
Nothing is wasted when building a GRT road. If a road needs to be built or changed, in-situ material, including old roads, is simply broken-up and incorporated into the new road.
With little or no external materials required during the construction of most GRT roads, there is a large reduction in truck movements, reducing greenhouse gas emissions.
Damage to either traditional or GRT roads is cheaper and easier to repair using GRT’s innovative products and processes. No heavy machinery is required to treat repairs – it can be as simple as a watering can, shovel, compactor and wheelbarrow. Repairs are made quickly, last as long as the original road and will not delamination. Furthermore, repaired roads are operational within minutes, not days, limiting traffic delays.
GRT’s full range of innovative, polymer products are easily transportable in Intermediate Bulk Containers (IBCs). Predominately sold and transported in a concentrate form and diluted with water prior to application, GRT’s specially engineered formulations can be transported in IBCs in the back of a utility vehicle or small truck. IBCs are stackable and designed to be moved using a standard forklift or a pallet jack.
Safety is the foundation of GRT’s polymer sealing, dust suppression and road stabilization products. Minimizing dust, GRT’s polymer solutions help combat visibility issues on site and in local communities. They also protect workers and members of local communities from respiratory health concerns associated with fugitive, airborne dust. GRT’s stabilization polymer products enhance safety by mitigating erosion and subsidence issues as well as providing non-slip, waterproof surfaces on most soil types. They are also safer for workers than bitumen, asphalt, and cement due to the product’s very low toxicity and are applied at ambient temperatures.
ROAD TRAUMA: THE FACTS
The United Nations declared 2011-2020 the Decade of Action for Road Safety in response to the mounting human tragedy of deaths and injuries on roads worldwide.
THE HUMAN TOLL OF ROAD TRAUMA:
Nearly 1.3 million people are killed on the world’s roads each year – that’s 3,287 deaths a day.
Annual road traffic deaths are forecast to rise 1.9 million people by 2020.
Up to 5 million people worldwide are injured in roads, and many remain disabled for life.
GLOBAL DEATH RATE
Road crashes are the ninth leading cause off death worldwide & account for 2.2 percent of all deaths globally.
Road crashes are the No1 cause of death worldwide among people aged 15-29.
Road crashes are the No2 cause of death worldwide among people aged 5-14.
More than half of all road traffic deaths occur among young adults, aged 15-44.
Each year nearly 400,000 people aged under 25 years die on the worlds roads – on average more than 1000 a day.
The chance of dying in a road traffic crash based on road traffic fatalities per 100,000 population:
South East Asia-18.5
Iceland has the lowest risk of road death with 2.81, followed by the
United Kingdom with 2.83 in a ranking of annual deaths from road crashes per 100,000 population.
The African region has the highest road traffic fatality rate while Europe has the lowest
About 90 percent of lives lost to road crashes occur in low and middle income countries, where less than half of the worlds registered vehicles are owned and driven.
Only 7% of the worlds population is covered by comprehensive road safety laws
Road Crashes cost low and middle-income countries
USD $65 Billion Annually
Exceeding the total amount received in developmental assistance
United Nations, Secretary General’s report – Improving Global Road Safety, September 2013
World Health Organisation, Global Status Report on Road Safety, 2013.
Bureau of Infrastructure, Transport and Regional Economics (BITRE), 2014 Statistical Report – International Road Safety Comparisons 2012, BITRE, Canberra ACT
Association for Safe International Road Travel, 2015
GRT Polymer Technology
The use of GRT polymer technology in the construction industry is steadily growing. The synergetic action of GRT polymers offers great opportunities for improvement and a wide range of new and innovative applications.
The use of polymers should be well considered to guarantee better performance and improved sustainability.
Polymers are no longer special construction materials that replace classical mineral or organic building materials. They are now one vital component in the production of composite and sustainable building materials. They will further allow the development of new and durable constructions, as well as new durable restoration and retrofitting techniques.
Improved Rolling Resistance Performance
Improved Road Wearing Coarse Friction Performance and Durability
Improved Fuel Economy
Improved Haul Truck Tyre Life
Improved Air Quality
100% Dry Strength
100% dry strength increase of base material can be achieved with as little as 0.5% of Polymer additive with UCS results ranging from 2 – 5.8Mpa
Indirect Tensile Strength 25% of UCS
Indirect tensile strength results of approximately 25% of UCS can be achieved from polymer treated base materials, were cement treated base materials will only achieve 4% of UCS at best.
Increased CBR by 65%
The CBR value of Sub base materials can be improved by at least 65%, to base course quality of greater than CBR 100%.
70% Reduction in Pavement Depths
70% reduction in pavement depths achievable using polymer stabilized base and sub-bases.