Rural Road Dust Control
If you are looking for haul road dust control solutions for mines then please go to our Mine Haul Road Dust Control page.
Rural road dust is a challenging area as there are many different road types, road surfaces, road usage and budget. The main difference between mine roads and rural roads is that mines have equipment (eg water carts and graders) to maintain the roads on a daily basis. As a result road dust control solutions for mines can involve regular watering. For a rural road most people want a solution they can apply once. As a result the solutions for rural road dust control all require the application of chemical.
Rural Road Dust Control Chemicals
There are a large range of chemicals which can be used for dust suppression. They can be used to bind the fines into the road surface, attract moisture to the road, or improve road structure preventing fines from working their way to the surface. Note with all of these chemicals the better the road surface (including less surface dust) the less chemical that is required and the better they will perform.
Zero is a environmentally friendly ‘Synthetic Organic’ formulation which coats the fines and binds them to the road surface. A single application of Zero can prevent 100% of dust without the need to regularly water the road for up to 12 months. Reapplication usually only requires 30% of the original dosage.
Zero will work on any type of road surface, and is ideal for hire yards, transport depots and container yards or small areas of road. As it is generally a surface based treatment, if rainfall causes the surface of the road to get washed away then the Zero will also get washed away. If dust is continually added to the road surface, eg material falling off trucks or dragged onto the road off stockpiles or blown onto the road then the Zero will suppress these, but will have more particles to stick to so it may need to be applied at a higher application rate or more frequently.
Zero is applied at around 1L per m2 and costs around $3.50 per m2. Follow the link for more information on Zero.
RT8 is a biodegradable natural oil which coats the fines and binds them to the road surface. It is similar in its performance and behaviour to Zero but due to its faster biodegrading it will only last for up to 3 months.
RT8 is applied at around 0.25L per m2 and costs around $1.50 per m2. Follow the link for more information on RT8.
Shield AWR is a is a blend of nano polymers and dispersing chemistry supplied as a free flowing, non-hazardous, eco friendly liquid. It works by binding the fines (dust particles) into the the road surface. An application of Shield AWR should last for 3 months. Reapplication usually involves 10% of the original dosage.
Shield AWR will work on any type of road surface as long as it has some dirt / clay particles in it. It works best on freshly graded roads or roads in good repair. It will not work on pure sand or stone surfaces. Shield AWR works by binding and locking up the surface of the road. It will not suppress any dust that is subsequently added to the road surface, eg material falling off trucks or dragged onto the road off stockpiles or blown onto the road.
Shield AWR is applied at around 0.25L per m2 and costs around $2.00 per m2. Follow the link for more information on Shield AWR.
Magnet is a Magnesium Chloride based product which attracts water out of the atmosphere into the road surface keeping it moist to prevent dust lift off. Magnet gets degraded by watering or rainfall particularly shortly after application. A single application of Magnet can prevent 100% of dust without the need to regularly water the road for up to 12 months (assuming minimal rainfall).
Due to the concerns with the salt leaching, corrosion of vehicles and the dilution of product with rainfall we find the use of Magnet is very limited.
Magnet is applied at 0.5L per m2 and costs around $0.70 per m2. Follow the link for more information on Magnet.
DustWorx is a super concentrated polymer based product which has two functions. Firstly it is a water extender reducing the time between watering for mine haul roads. Secondly it improves the compaction of the road surface preventing fines (dust particles) coming to the surface.
When used as a water extender a single application on a rural road can give 1-3 days dust control. Apply at 1L per 10,000 m2. Used over time this will improve the compaction and structure of the road.
DustWorx is usually applied as a water extender and is very cost effective. Follow the link for more information on DustWorx.
Please follow the link for more information on Dust Control Chemicals.